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Researchers propose widespread banking of stool samples for autologous faecal microbiota transplant later in life
News
Model can predict anal cancer risk HIV patients
News
New classification system proposed for CRC to guide treatment and clinical trials
News
Colorectal screening
AGA calls for national colorectal cancer screening approach
Jun 20, 2022 - 11:11
A. Proximal bowel division is performed using linear stapler (The black arrow marks the resection line). B. The rectal specimen is everted out of the body transanally. C. The distal rectal resection is performed extraabdominally (The black arrow marks the resection line). Credit: Science China Press
Outcomes of natural orifice specimen extraction surgery (NOSES) for CRC
Jun 16, 2022 - 11:07
Cancer cells
Directing chemotherapy to ctDNA-positive patients reduces overall chemotherapy use
Jun 9, 2022 - 09:37
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Colorectal cancer

Researchers propose widespread banking of stool samples for autologous faecal microbiota transplant later in life

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2 months ago By Owen

Researchers from Harvard Medical School and Brigham and Women's Hospital (BWH) have proposed that having individuals bank samples of people’s own gut microbiota when they are young and healthy for potential use later in life in an autologous faecal microbiota transplant (FMT). The findings were reported in the paper, ‘Rejuvenating the human gut microbiome', published in Trends in Molecular Medicine.

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Cancer cells

Model can predict anal cancer risk HIV patients

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2 months ago By Owen

Researchers at University of California San Diego School of Medicine and UC San Diego Health describe a new mathematical model to help predict anal cancer risk in persons with HIV infection and aid clinicians and patients in making screening decisions.

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Study schema. For each of the five cohorts, the number of patients, anatomical locations and the number of samples profiled using scRNA-seq are indicated at the top. The major stages of data analysis are indicated below and to the right. For each cohort, the total number of profiled cells and the number of epithelial cells are indicated at the bottom. Single-cell transcriptomes from the SMC cohort and six patients from KUL3 (75,332 cells in all after QC) have been previously reported. Credit: Nature Genetic

New classification system proposed for CRC to guide treatment and clinical trials

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2 months ago By Owen

A team of clinician-scientists and scientists, led by the National Cancer Centre Singapore (NCCS) and A*STAR's Genome Institute of Singapore (GIS) together with collaborators in Europe and South Korea, who used single cell techniques to uncover a central dichotomy for colorectal cancer cells, have proposed an update of the classification system for the disease.

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Credit: University of Barcelona

Researchers examine key to CRC relapse after chemotherapy

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2 months ago By Owen

Researchers led by Dr Eduard Batlle, ICREA researcher and head of the Colorectal Cancer Laboratory at IRB Barcelona, have found that some tumour cells remain in a latent state and, after chemotherapy, they are reactivated, thus causing relapse. Their findings were featured in the paper, ‘Mex3a marks drug-tolerant persister colorectal cancer cells that mediate relapse after chemotherapy’, published in Nature Cancer.

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Cancer cells

Advanced bowel cancer patients less likely to have had cancer screening

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2 months ago By Owen

A collaboration between a team at King's College London led by Peter Sasieni and a QMUL-based group led by Stephen Duffy collected data from over 14,000 people with bowel cancer and over 29,000 people who did not have bowel cancer.

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Colorectal screening

AGA calls for national colorectal cancer screening approach

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2 months ago By Owen

The American Gastroenterological Association has released a series of evidence-based position statements that amount to a call to action for a national colorectal cancer screening approach, which would enable everyone to participate in colorectal cancer (CRC) screening programmes without barriers. 

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A. Proximal bowel division is performed using linear stapler (The black arrow marks the resection line). B. The rectal specimen is everted out of the body transanally. C. The distal rectal resection is performed extraabdominally (The black arrow marks the resection line). Credit: Science China Press

Outcomes of natural orifice specimen extraction surgery (NOSES) for CRC

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2 months ago By Owen

With the rapid development of minimally invasive surgery for the treatment of colorectal diseases, novel surgical techniques aiming at reducing surgical trauma have become frequently discussed issues. By avoiding auxiliary abdominal incision for specimen extraction, natural orifice specimen extraction surgery (NOSES), including transvaginal specimen extraction (TVSE) and transanal specimen extraction (TASE), is thought to be one of the least invasive options in the treatment of colorectal cancer (CRC).

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Cancer cells

Directing chemotherapy to ctDNA-positive patients reduces overall chemotherapy use

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2 months ago By Owen

A study showed that circulating tumour DNA (ctDNA) - genetic material shed from tumours into the bloodstream - can identify stage II colon cancer patients who can most benefit from chemotherapy following surgery and spare other patients the need for this form of treatment.

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The small device is designed to enable more individualized application of light dosing and photodynamic therapy. Credit: Justin Baetge/Texas A&M Engineering

Wireless device can provide new options for CRC treatment

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3 months ago By Owen

For those diagnosed with colorectal cancer, surgery has been the only option that offers a solution. Unfortunately, surgery is frequently complicated by disease recurrence at the site of the original cancer when microscopic cancer cells are left behind at the time of surgery. Chemotherapy is a treatment option that is often given in conjunction with surgery, although it can lead to toxic side effects.

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Colonoscopy

Computer-assisted colonoscopy identifies more precancerous polyps vs traditional colonoscopy

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3 months ago By Owen

Colonoscopies performed with computer-aided detection or artificial intelligence, (AI) saw an increase in the overall rate of detection of adenoma, or cancerous and precancerous polyps, by 27% in average-risk patients, according to new data presented at the Digestive Disease Week Annual Meeting.

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Data analysis of mortality days. (Credit: Discover Oncology (2022). DOI: 10.1007/s12672-022-00472-7)

Algorithm will improve bowel-cancer patient care

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5 months ago By Owen

An algorithm which can predict how long a patient might spend in hospital if they're diagnosed with bowel cancer could save the NHS millions of pounds and help patients feel better prepared, according to researchers from the University of Portsmouth and the Portsmouth Hospitals University NHS Trust. The intelligent model will allow healthcare providers to design the best patient care and prioritize resources.

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Colorectal cancer

Accelerated biological aging may increase bowel cancer risk

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5 months ago By Owen

Researchers have shown how accelerated biological aging measured by an epigenetic clock may increase the risk of bowel cancer, according to a report, ‘Assessing the causal role of epigenetic clocks in the development of multiple cancers: a Mendelian randomization study’, published in eLife. The study provides evidence that biological age might play a causal role in the increased risk of certain diseases, and paves the way for interventions that could slow down this process.

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Stomach pain

C. albicans strains may damage the gut of patients with IBD

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5 months ago By Owen

Individual Candida albicans yeast strains in the human gut are as different from each other as the humans that carry them, and some C. albicans strains may damage the gut of patients with inflammatory bowel disease (IBD), according to a study from researchers at Weill Cornell Medicine. The findings reported in the paper, ‘Immune regulation by fungal strain diversity in inflammatory bowel disease’, published in Nature, suggest a possible way to tailor treatments to individual patients in the future.

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Interactions of 48 BEV proteins with monocytes, macrophages and dendritic cells in healthy (a) and UC (b) conditions. Number of expressed genes/number of interacting proteins are highlighted for each cell-type. Credit: Journal of Extracellular Vesicles (2022). DOI: 10.1002/jev2.12189

Computational biology method to better understand IBD

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5 months ago By Owen

Scientists at the Quadram Institute, the Earlham Institute and University of East Anglia have developed a new computational biology method to better understand Inflammatory Bowel Disease (IBD) for targeted clinical treatments. By analysing specific differences in gut cell types, the method deciphers cellular crosstalk to identify how beneficial bacteria communicate with our immune system to treat IBD and reduce gut inflammation.

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The new synthesis technique offers higher yields than convential methods of synthesis and also succeeded in reducing the use of organic solvents, thus making the overall process more sustainable. Credit: Hiroki Kakuta

Green synthesis of drug candidate for inflammatory bowel disease

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5 months ago By Owen

A research team led by Associate Professor Hiroki Kakuta from Okayama University, Japan, have developed a new large-scale synthesis method for widespread and stable supply of 4-(ethyl(3-isobutoxy-4-isopropylphenyl)amino)benzoic acid or NEt-3IB, a promising drug candidate for IBD. The research team further consisted of Yuta Takemura, Ken-ichi Morishita, Shota Kikuzawa, and Masaki Watanabe, all from Okayama University.

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Colorectal cancer

Researchers warn against overreliance on liquid biopsy for CRC recurrence

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5 months ago By Owen

Researchers at City of Hope have reported limitations of Signatera, a liquid biopsy or blood draw test that is used to detect the recurrence of colorectal cancer in patients who have had their disease surgically removed.

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Cancer cells

Are taller adults at increased risk of CRC?

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6 months ago By Owen

A new meta-analysis by Johns Hopkins Medicine researchers has added to evidence that taller adults may be more likely than shorter ones to develop colorectal cancer or colon polyps that can later become malignant. While the association between taller height and colorectal cancer has been previously investigated, the Johns Hopkins Medicine researchers say those studies offered conflicting results, carried inconsistent measures of height and failed to include the risk of adenomas, which are precancerous colon polyps.

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Water

Nitrate levels in drinking water could be related to CRC

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6 months ago By Owen

The formation of cancer-causing chemicals in the gut could be at the heart of understanding how high levels of nitrate in our drinking water contribute to increasing the risk of bowel (colorectal) cancer, according to New Zealand researchers.

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Fig. 1: IL-36 family member expression is elevated in pediatric IBD samples. Serum samples from treatment naïve pediatric patients with CD or UC, and healthy controls, were analyzed by ELISA for protein expression of IL-36α (a), IL-36β (b), IL-36γ (c) and IL-36Ra (d), n = CD: 41–42; UC: 31; CTRL: 23. Statistical analysis performed by Mann–Whitney U Test, **p < 0.01. e Detection of IL-36R and CD3 protein levels in colon biopsies from this same cohort was performed by confocal microscopy and (f) the average o

New insights into how IL-36 cytokines drives IBD

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6 months ago By Owen

Researchers from Trinity's School of Medicine, working closely with pediatric gastroenterologists at CHI-Crumlin, have previously shown that small proteins known as IL-36 cytokines are 'switched on' in the inflamed intestines of children with newly diagnosed Inflammatory bowel disease (IBD). However, it is still not fully understood how IL-36 cytokines drive disease.

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Autoinjector with 40mg Amgevita by Amgen (Adalimumab). Credit: Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons)

Intensive Crohn's treatment is safe vs current standard of care

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6 months ago By Owen

Intensive treatment for patients with Crohn's disease showed no safety differences compared to the current standard of care, according to the outcomes of a trial, ‘Higher vs Standard Adalimumab Induction Dosing Regimens and 2 Maintenance Strategies: Randomized SERENE CD Trial Results’, published in the journal Gastroenterology.

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 Omid Veiseh (Credit: Jeff Fitlow/Rice University)

Drug factory implants eliminate colorectal cancer in mice

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6 months ago By Owen

Rice University bioengineers have shown they can eradicate advanced-stage ovarian and colorectal cancer in mice in as little as six days with a treatment that could be ready for human clinical trials later this year. The researchers used implantable "drug factories" the size of a pinhead to deliver continuous, high doses of interleukin-2, a natural compound that activates white blood cells to fight cancer. The drug-producing beads can be implanted with minimally invasive surgery.

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Cancer cells

Promising targetable pathway for CRC prevention and treatment

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6 months ago By Owen

An MUSC Hollings Cancer Center study sheds light on better ways to prevent and treat colorectal cancer, which often is found at advanced stages when it's much harder to treat. MUSC Hollings Cancer Center director and researcher, Dr Raymond DuBois, has discovered the connection between a series of pathways, actions among molecules that lead to a change in colorectal cancer cells, which showed how cancer cells and the immune system interact.

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Colorectal screening

CRC screening programme can erase disparities in outcomes

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6 months ago By Owen

Colorectal cancer disparities between Black and white adults were eliminated after the health care organisation instituted a regionwide, structured colorectal cancer screening program, according to Kaiser Permanente researchers. The findings, 'Elimination of colorectal cancer disparities in Black Persons with intentional continuum of care screening strategies', were published in the New England Journal of Medicine.

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ulcerative colitis

Potential new diagnostic marker may help diagnose ulcerative colitis

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6 months ago By Owen

An international research collaboration has discovered a potential new diagnostic marker for ulcerative colitis in a trans-ethnic analysis of Japanese and white patients. The finding could lead to the development of non-invasive, diagnostic blood test to both identify the disease and to determine progression in patients, according to the researchers. They published their findings, ‘Novel Diagnostic Autoantibodies Against Endothelial Protein C Receptor in Patients With Ulcerative Colitis’, in Clinical Gastroenterology and Hepatology.

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Stem cells and functional differentiated cells in organoids support a faster repair of ulceration (Credit: Center for Stem Cell and Regenerative Medicine, TMDU)

3D cellular structures could repair intestine tissue damaged colitis

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6 months ago By Owen

Researchers from Tokyo Medical and Dental University (TMDU) have presented a detailed protocol for transplanting 3D cellular structures that can regenerate the intestinal tissue that gets damaged in colitis. To develop this approach, they used a mouse model of colitis, obtained by the administration of dextran sulphate sodium, which destroys the intestinal epithelium in a way similar to colitis.

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A side-by-side comparison of colorectal cancer cells before (left) and after (right) treatment with fluorouracil and irinotecan. The expression of mucins is shown in green. Credit: Lluís Espinosa/IMIM

CRCs raise defensive barrier in response to chemotherapy

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6 months ago By Owen

 

Drugs which are commonly used as the first line of treatment for colorectal cancer cause the tumour cells to oversecrete proteins known as mucins, according to a study published in the journal eLife, these proteins alter the mucous layer forming a physical barrier that prevents drugs from reaching their intended target.

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Colorectal cancer screening

Culturally tailored patient programme may increase CRC screening among Hispanic population

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7 months ago By Owen

Investigators have reported that a culturally tailored patient navigation programme can improve the rate of colorectal cancer screening among Hispanic adults and potentially help eliminate historical gender disparities in such screening. The findings were featured in the paper, ‘Decreasing colorectal cancer screening disparities: A culturally tailored patient navigation program for Hispanic patients’, Cancer.

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DNA

Genetic and lifestyle calculator reveals risk of CRC in younger adults

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7 months ago By Owen

A new risk score can identify men and women under age 50 most likely to develop colorectal cancer, an international study shows. The score, a number between 0 and 1, is made from a calculation of people's risk of developing cancers in either digestive tract organ based on 141 genetic variants (changes in the DNA code) more common in people with the disease.

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Drugs

Link between antibiotics and colon but not rectal cancer

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7 months ago By Owen

Scientists from the University of Aberdeen, NHS Grampian and Queen's University Belfast have found that antibiotic use may increase the risk of developing colon cancer, potentially more so among younger people.

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Stomach pain

Mechanism for colon pain and inflammation revealed

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7 months ago By Owen

Researchers at the NYU Pain Research Center have identified a mechanism that underlies inflammation and pain in the colon, and demonstrated that blocking a key receptor from entering colon cells can inhibit inflammation and pain, uncovering a potential target for treating pain in inflammatory bowel disease. The findings were featured in the paper, 'Mice expressing fluorescent PAR reveal that endocytosis mediates colonic inflammation and pain', published in the Proceedings of the National Academy of Sciences.

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Weighing scales

Weight loss reduces the risk of developing colorectal adenoma

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7 months ago By Owen

People with overweight and obesity people who lose weight may reduce their chances of later developing colorectal adenoma, a type of benign growth or polyp in the colon or rectum that could lead to colorectal cancer. The findings reported in the paper, ‘Weight Change and Incident Distal Colorectal Adenoma Risk in the PLCO Cancer Screening Trial’, published in the journal JNCI Cancer Spectrum, underscore the importance of healthy weight maintenance throughout adulthood in preventing colorectal adenoma.

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Image of colon cancer cells

Framework outlines challenges to address early-onset colorectal cancer research

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7 months ago By Owen

The reasons for rising rates of colorectal cancer in people younger than 50 are largely unknown, but a paper by Vanderbilt-Ingram Cancer Center (VICC) researchers published in The Lancet Oncology sets a comprehensive framework for addressing research challenges and patient needs. The paper gives an overview about the state of the science related to the epidemiology, molecular landscape and treatments for early-onset colorectal cancer as well as the disease's psychological and quality of life impact on patients.

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Cancer cells

Younger people may have the highest risk of presenting with distant-stage colorectal cancer

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7 months ago By Owen

Individuals between 20 and 39 years old experienced the steepest increase in distant-stage early-onset colorectal adenocarcinoma incidence between 2000 and 2016, with the youngest non-Hispanic Black and Hispanic populations experiencing greater proportions of distant-stage disease, according to results from a study, ‘Shifts in the Proportion of Distant Stage Early-Onset Colorectal Adenocarcinoma in the United States’, Cancer Epidemiology, Biomarkers & Prevention.

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Cancer cells

Rise in incidence of early-onset colorectal precancerous lesions in patients under age 50

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7 months ago By Owen

Researchers at the Icahn School of Medicine at Mount Sinai have reported an increase in early-onset colorectal cancer and precancerous polyps, based on a large, nationally representative study of patients under age 50 who underwent colonoscopy. It is the first large-scale study to look at precancerous polyps in this age group. The findings were featured in the paper, Prevalence and Predictors of Young-Onset Colorectal Neoplasia: Insights from a Nationally Representative Colonoscopy Registry, published in Gastroenterology.

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polyps

Adenomas arise from expansion of stem cells that are driven by activation of WNT signalling

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7 months ago By Owen

A team of Vanderbilt researchers has revealed some of the mechanisms by which polyps develop into colorectal cancer, setting the framework for improved surveillance for the cancer utilising precision medicine. The findings were published in the paper, 'Differential pre-malignant programs and microenvironment chart distinct paths to malignancy in human colorectal polyps', published in Cell

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Crohn's

Study associates gut fungi to intestinal inflammation in Crohn's disease patients

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7 months ago By Owen

Researchers at Case Western Reserve University have revealed that new treatment options for Crohn's disease patients may be on the horizon thanks to the research linking a common fungal pathogen to inflammatory bowel disease. Their findings were featured in the study, ‘Candida tropicalis Infection Modulates the Gut Microbiome and Confers Enhanced Susceptibility to Colitis in Mice’, published Cellular and Molecular Gastroenterology and Hepatology.

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Gut bacteria

UshA bacterial protein associated with colorectal cancers

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7 months ago By Owen

Strains of bacteria that cause common food-poisoning symptoms often contain a toxin that can damage DNA in intestinal cells, potentially triggering colorectal cancer, according to a study from researchers at the Johns Hopkins Bloomberg School of Public Health.

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Kaplan-Meier analysis of overall PFS for TARE plus chemotherapy versus chemotherapy in the intention-to-treat population. PFS, progression-free survival; TARE, transarterial yttrium-90 radioembolization. Credit: DOI: 10.1200/JCO.21.01839

Transarterial radioembolization could delay progression of CRC

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8 months ago By Owen

Combined chemotherapy with transarterial radioembolization (TARE) could be a better option compared to chemotherapy alone, according to Dr Mary Mulcahy, professor of Medicine in the Division of Hematology and Oncology and lead author of the study.

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According to the metric used for IBS symptoms (IBS-SSS), a change of more than 50 points indicates a clinically significant effect. The change between fodmaps and the placebo was 42, and just 10 for gluten and the placebo (Credit: Chalmers University of Technology / Elise Nordin and Yen Strandqvist)

Specific diets for IBS less important than expected

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8 months ago By Owen

A large study from Chalmers University of Technology and Uppsala University, Sweden, indicates that gluten and certain types of carbohydrates called 'fodmaps' have less effect than expected on IBS symptoms and does not show a relationship between high intake of gluten and increased IBS symptoms. However, the researchers did find that a certain type of carbohydrate called 'fodmaps' can aggravate intestinal problems, however, the overall results indicate that they also have less influence than previously thought.

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Dr. David Lo is a distinguished professor of biomedical sciences at UC Riverside. Credit: I. Pittalwala, UC Riverside.

TNFR could be key to treat inflammatory bowel disease

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8 months ago By Owen

Biomedical scientists at the University of California, Riverside, propose a way for drugs to be more effective against inflammatory bowel disease (IBD) in which the intestine undergoes inflammation. IBD, a chronic inflammatory disease of the intestine, includes Crohn's disease and ulcerative colitis. It is commonly treated with one of several available biological drugs that block an inflammatory molecule called Tumor Necrosis Factor Alpha, or TNF-alpha, from binding to two receptors, TNFR1 and TNFR2.

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Colorectal screening

CRC screening to accommodate patient needs and preferences

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8 months ago By Owen

A Mayo Clinic study has reported that colorectal cancer screening preferences of primary care clinicians shifted toward non-invasive options in general and particularly for patients who were unwilling to undergo invasive procedures.

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First, we conducted cross-sectional study to create AI system for endoscopic images in ulcerative colitis. Then, we conducted prospective study to evaluate whether AI system could predict patient prognosis. Finally, we applied our AI system to video-colonoscopy. (Credit: Department of Collaborative Medicine for Gastroenterology and Hepatology, TMDU)

AI system for detecting and diagnosing ulcerative colitis

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8 months ago By Owen

Researchers at Tokyo Medical and Dental University (TMDU) have developed an artificial intelligence system for detecting and diagnosing ulcerative colitis using real-time clinical video imaging, reducing the need for expensive and invasive biopsies. The research, ‘Deep neural network for video colonoscopy of ulcerative colitis: a cross-sectional study’, was published in The Lancet Gastroenterology & Hepatology.

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Cancer cells

Colorectal cancer screening significantly lower among rural women

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8 months ago By Owen

Women who live in urban and rural areas get screened for breast cancer at similar rates, but rural women get screened for colorectal cancer at significantly lower rates than their urban counterparts, according to research, ‘Differences in Breast and Colorectal Cancer Screening Adherence Among Women Residing in Urban and Rural Communities in the United States’, published in JAMA Network Open.

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Cancer cells

sotorasib improves treatment options for patients with advanced CRC

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8 months ago By Owen

Results of a Phase 2 clinical trial has revealed monotherapy with sotorasib resulted in anti-tumour activity and a favourable benefit-risk profile among heavily pre-treated patients with advanced colorectal cancer.

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drugs

RAS mutations do not preclude the use of EGFR inhibitors

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8 months ago By Owen

Using computer modelling and cell studies researchers have discovered that more patients with colorectal cancer may be helped by a common class of targeted therapies than previously thought. The findings, ‘Identification of RAS mutant biomarkers for EGFR inhibitor sensitivity using a systems biochemical approach’, were published in Cell Reports.

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Gut microbiota

Faecal transplant discovery could improve care for C. difficile infection

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8 months ago By Owen

Researchers from the University of Virginia School of Medicine have discovered that the presence of IL-25, an important agent of the immune system, improved the success of faecal transplant in combatting C. difficile infections. The findings were published I the paper, ‘Microbiota Transplantation Increases Colonic IL-25 and Dampens Tissue Inflammation in Patients with Recurrent Clostridioides difficile’, in the scientific journal mSphere.

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Stomach pain

Specific genetic profiles influence predisposition to IBS

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8 months ago By Owen

An international team of researchers have demonstrated for the first time that the frequency of defecation is a heritable character in humans, and that specific genetic profiles influence bowel habits as well as predisposition to irritable bowel syndrome (IBS). The team, led by Professor Mauro D'Amato, Ikerbasque Research Professor at CIC bioGUNE Centro de Investigación Cooperativa en Biociencias (CIC bioGUNE), studied the DNA of more than 160,000 people who provided information on the frequency of their bowel movements.

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Cancer cells

Researchers pinpoint tumour support signal that suppresses immune system

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8 months ago By Owen

Researchers at SAHMRI and the University of Adelaide have pinpointed a tumour support signal that works to suppress the immune system. Blocking this signal may prove pivotal in stopping bowel cancer. The findings were reported in the paper, ‘The origin and contribution of cancer-associated fibroblasts in colorectal carcinogenesis’, published in Gastroenterology.

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Counselling

CRC patients at high risk of clinical levels of depression

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9 months ago By Owen

Over a third of bowel cancer patients experienced clinically significant depression after surgery to treat their cancer, with one in seven still experiencing symptoms five years after undergoing surgery. The findings, ‘Prevalence and determinants of depression up to 5 years after colorectal cancer surgery: results from the ColoREctal Wellbeing (CREW) study’, were published in the journal Colorectal Disease.

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Colorectal cancer screening

Patient guideline explains latest timing and approaches for CRC screening

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9 months ago By Owen

The National Comprehensive Cancer Network (NCCN) has announced the publication of new NCCN Guidelines for Patients: Colorectal Cancer Screening. Colorectal cancer (CRC) is the fourth most frequently diagnosed cancer in the US, with an estimated 104,270 new cases of colon cancer and 43,230 new cases of rectal cancer in 2021, and an estimated 52,980 deaths this year.

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PillCam Small Bowel 3 @HOME

Medtronic gains 510(k) clearance for PillCam Small Bowel 3 @HOME endoscopy procedure

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9 months ago By Owen

Medtronic has gained FDA 510(k) clearance for its PillCam Small Bowel 3 system for remote endoscopy procedures. The PillCam SB3 @HOME program combines Medtronic's PillCam technology with Amazon logistics, a combination intended to ensure both timely and accurate results for patients from the comfort of their homes. PillCam Small Bowel 3 is only cleared for remote use in the US It is not approved for this use in other countries or regions.

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Gut microbiota

Low FODMAP diet could benefit people with IBS

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9 months ago By Owen

People who respond well to the recommended dietary therapy of restricting intake of fermentable carbs for irritable bowel syndrome have an abundance of particular types of bacteria in their gut, according to the paper, 'Two microbiota subtypes identified in irritable bowel syndrome with distinct responses to the low FODMAP diet', published in Gut. The finding opens up the potential for new treatments and better management of the condition, which affects up to 15% of people worldwide, say the researchers.

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C-Scan test

Patients significantly more likely to recommend the C-Scan capsule than colonoscopy

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9 months ago By Owen

Patients who underwent the C-Scan test to detect polyps before they may transform into colorectal cancer (CRC), as part of the 2019 US pilot study, were significantly more likely to recommend C-Scan test compared to colonoscopy. The findings were reported in the paper, ‘Colorectal Cancer and Polyp Detection Using a New Preparation-Free, Colon-Scan Capsule: A Pilot Study of Safety and Patient Satisfaction’, published in the journal Digestive Diseases and Sciences.

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Colon polyps

AI classifies colorectal polyps proves useful for pathologists

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9 months ago By Owen

In a 2020 study, researchers at Dartmouth's and Dartmouth-Hitchcock's Norris Cotton Cancer Center developed artificial intelligence (AI) to distinguish the four major types of colorectal polyps removed during screening colonoscopy. The model not only produced results that demonstrated accuracy and sensitivity at the level of practicing pathologists, but withstood evaluation using broad datasets spanning multiple institutions across the US, proving that AI models are generalisable and can be trained on widespread external data.

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Stomach pain

Stress associated with Crohn's disease flare-ups

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9 months ago By Owen

A possible link between psychological stress and Crohn's disease flare-ups has been identified by a McMaster University-led study. Researchers using mouse models found that stress hormones suppressed the innate immune system that normally protects the gut from invasive Enterobacteriaceae, a group of bacteria including E. coli which has been linked to Crohn's disease. The findings were featured in the paper, ‘Psychological stress impairs IL22-driven protective mucosal immunity against colonizing pathobionts’, published in Nature Communications.

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Enteric neurons and glial cells in the myenteric plexus of the colon in an animal after natural microbial recolonization of the gut following antibiotic treatment (Credit: Laurie Wallace, Sharkey lab)

Microbial factors that help regulate the function and structural integrity of the enteric nervous system

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9 months ago By Owen

University of Calgary researchers have discovered specific factors in the workings of the gut that in the future may help improve treatment for patients facing gut damage or gastrointestinal disease. The findings, ‘Intestinal microbiota shapes gut physiology and regulates enteric neurons and glia’, published in Microbiome, from Snyder Institute for Chronic Diseases researchers, immediately improves the understanding of factors that help regulate the enteric nervous system, the system of nerves that control the gastrointestinal tract.

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faecal immunochemical testing

FIT screening not suitable for emergency and inpatient settings

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9 months ago By Owen

A clinical research study from Indiana University School of Medicine and the Regenstrief Institute examines the use, in emergency and inpatient settings of FIT (faecal immunochemical testing), which looks for blood in stool, a possible sign of colorectal cancer. The researchers found that FIT should only be used for its validated indication of colorectal cancer screening and should not be used for evaluation of gastrointestinal bleeding, abdominal pain or iron deficiency anaemia and other symptoms or problems that bring individuals to the hospital.

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Impact of IBD gene candidate ORFs on the HT-29 transcriptome. A Selected examples illustrating the impacts observed on the transcriptome of HT-29 cells following the expression of different ORFs for IBD gene candidates. HITS are identified as genes with probes from either microarray platform showing detectable expression in HT-29 (endogenously or following ORF expression) for which the fold effect in response to the expression of a given ORF is greater than two compared to the baseline and shows expression

Gut infections helps prevent Crohn's disease and ulcerative colitis

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9 months ago By Owen

A research team at the Montreal Heart Institute and Université de Montréal has shown that genes present in specific intestinal cells protect against the development of inflammatory bowel diseases. The findings, ‘Functional screen of inflammatory bowel disease genes reveals key epithelial functions’, published in the scientific journal Genome Medicine, show that more than a dozen of these genes, which contribute to the development of Crohn's disease and ulcerative colitis, help fight viral and bacterial infections.

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Colorectal cancer

Flexible sigmoidoscopy screening reduces CRC incidence and mortality

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9 months ago By Owen

The outcomes from a parallel randomised controlled trial have confirmed that a single flexible sigmoidoscopy screening at age 55 to 64 years represents a safe and effective strategy associated with a substantial reduction in colorectal cancer (CRC) incidence and mortality. The strong protective effect was maintained up to 15 years and 19 years, respectively. The findings, ‘Long-Term Follow-up of the Italian Flexible Sigmoidoscopy Screening Trial, were published in Annals of Internal Medicine.

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Microscopic image of inflamed intestinal tissue; on the right, the DNA repair mechanism is disrupted, resulting in increased tumor-promoting growth (Credit: IKMB, Kiel University)

Chronic intestinal inflammation can cause cancer

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10 months ago By Owen

Chronic inflammatory bowel disease (IBD) are inflammations of the gastrointestinal tract which flare up in phases and are accompanied by bloody bowel movements, diarrhoea and severe impairment of the quality of life. IBD patients exhibit an increased risk of developing colorectal cancer. This is facilitated by the fact that DNA in the intestinal mucosa cells (intestinal epithelium) is damaged by chronic inflammatory processes. Upon DNA damage, a cell in a healthy state protects itself from accumulation of a defective genome by not dividing further.

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Graphical abstract (Credit Gastroenterology)

XBP1 risk gene for chronic IBD associated with CRC

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10 months ago By Owen

A team from the Cluster of Excellence Precision Medicine in Chronic Inflammation (PMI) has shown that the gene XBP1, which is a risk gene for chronic inflammatory bowel disease (IBD), has a decisive influence on how an intestinal mucosa cell deals with DNA damage, and thus protects itself against the development of cancer.

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Summary graph of risk of bias. Credit: DOI: 10.1371/journal.pone.0258501

Who should be offered testing for celiac disease?

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10 months ago By Owen

Targeted testing of individuals with a range of signs and symptoms could improve diagnosis of celiac disease, a study led by the University of Bristol has reported. Signs and symptoms include family history of celiac disease, dermatitis herpetiformis, anaemia, type 1 diabetes, osteoporosis and chronic liver disease.

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A study participant performs a treadmill test monitored by researchers in Kerry Courneya's lab. Courneya's former PhD student Andria Morielli led new research suggesting that rectal cancer patients who exercise while undergoing radiation therapy before surgery may have a better chance of their tumor disappearing altogether. Credit: University of Alberta

Exercise plus radiation therapy can improve rectal cancer outcomes

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10 months ago By Owen

Patients with rectal cancer who exercised while undergoing a form of tumour-shrinking radiation therapy in advance of surgery were more likely to have their tumours disappear, according to a University of Alberta study that begins to paint exercise as more than just a supportive care intervention. The research, ‘Feasibility, Safety, and Preliminary Efficacy of Exercise During and After Neoadjuvant Rectal Cancer Treatment: A Phase II Randomized Controlled Trial’, was published in Clinical Colorectal Cancer.

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Cancer cells

Survival times similar for younger and older metastatic CRC patients

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10 months ago By Owen

Even though young patients with metastatic colorectal cancer tend to be more fit and receive more intensive treatment than older patients, both groups survive for roughly the same amount of time, according to a study by Dana-Farber Cancer Institute investigators. The findings featured in the paper, ‘Survival in Young-Onset Metastatic Colorectal Cancer: Findings from Cancer and Leukemia Group B (Alliance)/SWOG 80405’, published in JNCI: Journal of the National Cancer Institute, come as colorectal cancer rates are rising markedly in young people.

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Are We Chasing Shorter Length of Stay At the Expense of Post-Discharge Complications? Credit: American College of Surgeons

Shorter hospitalisation increases risk of postoperative complications

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10 months ago By Owen

The trend toward decreasing length of hospitalisation after surgical procedures may come at the expense of an increasing proportion of complications occurring after patients leave the hospital, according to a study, ‘Are We Chasing Shorter Length of Stay At the Expense of Post-Discharge Complications?’ presented at the American College of Surgeons Clinical Congress 2021.

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COVID-19 Pandemic Impact on Colorectal Cancer Screening. Credit: American College of Surgeons

More patients willing to have home-administered FOBT

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10 months ago By Owen

A team of researchers at Virginia Commonwealth University report that for people hesitant to come into the hospital or an outpatient centre to get a colonoscopy, home-administered faecal occult blood tests (FOBT) may provide a useful workaround tool. About 30 percent more survey respondents completed home-based test during the pandemic than before. Dr Kristine Kenning, presented findings from a survey, ‘COVID-19 Pandemic Impact on Colorectal Cancer Screening’, at the American College of Surgeons Clinical Congress 2021 of adults age-eligible for screening.

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Vitamin D

Low vitamin D may lead to elevated CRC risk in black women

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10 months ago By Owen

A study from the Slone Epidemiology Center and the Boston University School of Medicine suggests that Black women with a low vitamin D status have an increased risk of developing colorectal cancer (CRC), in line with the findings of previous epidemiologic studies conducted in White populations. These findings, ‘Predicted Vitamin D Status and Colorectal Cancer Incidence in the Black Women's Health Study, appear in the journal Cancer Epidemiology, Biomarkers & Prevention.

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Colorectal cancer

Identifying CRC through microbiome composition

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10 months ago By Owen

Microbiome scientists from the University of Tartu have been able to characterise microbiome composition from sample tubes used in CRC screening for testing faecal occult blood to study colorectal cancer more efficiently.

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A cross-section through a mouse gut showing enteric glia cells (red) and the parasite H. polygyrus (blue). Credit: The Francis Crick Institute

Glial cells play crucial role in maintaining healthy gut immunity

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10 months ago By Owen

Researchers at the Francis Crick Institute have uncovered a fundamental role of glial cells in the nervous system of the gut in maintaining a healthy intestine. These cells have been found to coordinate the immune responses of the gut following pathogen invasion and could be key targets when exploring new treatments for inflammatory bowel conditions.   

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Cancer cells

RGX-202 compound would prevent CRC metastasis

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11 months ago By Owen

Researchers at Rockefeller University have identified a small molecule that could, in the future, be administered alongside standard chemotherapies to stave off colorectal cancer (CRC) metastasis. The research, reported in the paper, 'Therapeutic targeting of SLC6A8 creatine transporter suppresses colon cancer progression and modulates human creatine levels', published in Science Advances, demonstrated how the compound, named RGX-202, foils a key pathway that cancer cells rely upon to hoard energy, thereby killing them and shrinking tumours in mice

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Killer T cells

Killer T cells could ignite immune response against cancer

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11 months ago By Owen

Two signalling molecules recruit immune cells known as "killer" T cells to a specific type of colon cancer with more favourable patient outcomes, a University of Alberta researcher has report, and  the finding may represent a therapeutic strategy to target other types of cancers.

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Colorectal cancer screening

CRC diagnoses dropped more than 40% during COVID-19 pandemic

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11 months ago By Owen

The number of colorectal cancer (CRC) cases diagnosed fell dramatically by 40 percent in a year during the COVID-19 pandemic, according to a study, ‘Impact of the COVID-19 pandemic in the diagnosis and characteristics of colorectal cancer patients’, presented at UEG Week Virtual 2021.

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polyps

Novel scoring tools for predicting actual risk of colon cancer and advanced precancerous polyps

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11 months ago By Owen

Researchers have created novel scoring tools for predicting actual risk of colon cancer and advanced precancerous polyps for patients at average for the disease. The work was led by Dr Thomas F Imperiale from the Regenstrief Institute and US Department of Veterans Affairs research scientist and Indiana University School of Medicine professor of medicine.

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Intestinal cells of a mouse that were fed a high-fat diet. The intestinal cells express less of the MHC-II tag than found in a gut from mice fed a normal diet (Credit: Beyaz lab/CSHL, 2021)

High-fat diets allow cancer cells to go unnoticed

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11 months ago By Owen

Cold Spring Harbor Laboratory Fellow, Semir Beyaz, and collaborators from Harvard Medical School and Massachusetts Institute of Technology have discovered that fat disrupts the relationship between intestinal cells and the immune cells that patrol them looking for emerging tumors, in mice. They hypothesise that reconfiguring the gut microbiome may be a way to heal the relationship.

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Pelvic Floor Disorders Consortium

Pelvic floor experts issue new recommendations for MRD

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11 months ago By Owen

The Pelvic Floor Disorders Consortium (PFDC), a multidisciplinary organization representing the wide range of professionals involved in diagnosis and treatment of pelvic floor disorders, has published a new set of consensus recommendations for performing and interpreting the results of magnetic resonance defecography (MRD). MRD is a non-invasive imaging technique to evaluate the many possible causes of problems in passing bowel movements.

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Tumour cells

adavosertib slows the regrowth of some CRC tumours

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11 months ago By Owen

A new drug has shown promise in slowing the regrowth of tumours among some bowel cancer patients, according to new findings of a major trial run by researchers at University College London in collaboration with the Universities of Glasgow, Oxford, Leeds and Cardiff. The results of the FOCUS4-C trial, which was funded by Cancer Research UK, the EME Program (an MRC/NIHR partnership) and AstraZeneca, were presented on at the European Society of Medical Oncology and published in the Journal of Clinical Oncology.

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Stomach pain

Controlling luminal ATP-P2X4R signalling could aid therapeutic intervention for ulcerative colitis

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11 months ago By Owen

A team led by researchers at Osaka University, Japan, have uncovered a molecular mechanism by which aggravation of ulcerative colitis is inhibited through regulation of intestinal levels of a microbial metabolite, adenosine triphosphate (ATP), that affects certain immune cells and facilitates inflammatory responses.

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Credit: CC0 Public Domain

Use of computer-assisted colonoscopies reduces rate of missed lesions

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11 months ago By Owen

A multicentre team of researcher-clinicians led by gastroenterologists at Beth Israel Deaconess Medical Center (BIDMC) assessed whether artificial intelligence-based computer aided adenoma detection can improve colonoscopy quality by reducing the miss rate. The researchers reported a relative reduction of the miss rate by nearly a third when computer-aided detection was used in conjunction with standard-of-care colonoscopy.

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Gut microbiota

Gut bacteria might be an indicator of CRC risk

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11 months ago By Owen

The increased presence of certain bacteria in a gut biome indicates a greater likelihood that colorectal cancer (CRC) polyps will become cancerous. The findings were published in the paper, 'Genomic and functional characterization of a mucosal symbiont involved in early-stage colorectal cancer', published in Cell Host & Microbe

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ulcerative colitis cells

Statins could be effective treatment for patients with ulcerative colitis

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11 months ago By Owen

Statins, a commonly prescribed cholesterol-lowering drug, seem to be an effective, if unexpected, treatment for ulcerative colitis, according to study from Stanford Medicine study.

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Multi-color image of colon from a patient with ulcerative colitis stained by imaging mass cytometry. Credit: Dr. Ayano Kondo / Kaestner lab

Imaging mass cytometry maps cells tied to inflammatory bowel disease

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11 months ago By Owen

New maps of hundreds of thousands of cells related to inflammatory bowel disease shed greater light on their effects on intestinal tissues through a newly utilised imaging technique called imaging mass cytometry. The novel findings by researchers at the Perelman School of Medicine at the University of Pennsylvania provide a possible path to better targeted and more personalized approaches to treating inflammatory bowel disease (IBD).

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Chron's disease

Crohn's disease may be caused by activation of developmental pathways

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11 months ago By Owen

A new large-scale study that has mapped the cells in the human gut from early development through to adulthood, has revealed that Crohn's disease may be caused by activation of developmental pathways. The findings could lead to potential drug targets for treating Crohn's and other inflammatory bowel diseases. The detailed maps will help explain how the gut forms and functions, and will transform research into intestinal diseases.

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Cancer cells

CRC risk extends to second- and third-degree relatives

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11 months ago By Owen

Having second- or third-degree relatives with colorectal cancer (CRC) increases a person's risk of developing the disease, according to the findings of a study led by researchers from the University at Buffalo and the University of Utah.

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Colorectal cancer

Inactive TSPAN6 protein could make CRC drugs less effective

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11 months ago By Owen

Scientists at the University of Birmingham have discovered a previously unknown pathway that prevents specific drugs from working in patients with colorectal cancer. The research findings could pave the way for increasing the number of bowel cancer patients who can be successfully treated. The findings were published in the paper, ‘Tetraspanin 6 is a regulator of carcinogenesis in colorectal cancer’, published in the Proceedings of the National Academy of Sciences.

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Majid Kazemian and a team of scientists have discovered that the gene TCF-1 plays a key role in controlling TReg cells, affecting the severity of colon cancer. Credit: Purdue University / Rebecca McElhoe

TCF-1 gene controls the severity of colon cancer

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12 months ago By Owen

Researchers from Purdue University, including Dr Majid Kazemian, an assistant professor of biochemistry and computer science, and a team of collaborators from Mayo Clinic and the University of Chicago, have discovered that the gene TCF-1 controls the functions of a specific set of Regulatory T (TReg) cells. Without TCF-1, these TReg cells keep their normal repressive function, but they gain additional properties and become inflammatory. .

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Colonoscopy

Colonoscopy retroflexion poorly performed in practice

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12 months ago By Owen

A retroflexed view, a colonoscopy manoeuvre to better detect polyps in the right colon, is often poorly preformed in practice, according to a Northwestern Medicine study, ‘Cecal retroflexion is infrequently performed in routine practice and the retroflexed view is of poor quality’, published in BMC Gastroenterology.

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MUSC Hollings Cancer Center researchers discovered a novel mechanism showing how a certain gene mutation can allow tumors to evade detection by the immune system in colorectal cancer patients. Credit: MUSC Hollings Cancer CenterMarquel Coaxum

Gene mutation allows CRC tumours to evade detection by the immune system

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12 months ago By Owen

MUSC Hollings Cancer Center researchers have discovered a novel mechanism showing how a certain gene mutation can allow tumours to evade detection by the immune system in colorectal cancer (CRC) patients. The findings were reported in the study, ‘Mutant APC promotes tumour immune evasion via PD-L1 in colorectal cancer’, published in Oncogene.

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Estimating the size of a silicon polyp in a colon model. Credit: Masato Yoshioka et al., doi 10.1117/1.JBO.26.9.096002

Virtual ruler estimates the size of colorectal polyps

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12 months ago By Owen

Researchers from Fujifilm and Okayama University have developed a simple, cost-effective solution to accurately estimate the size of polyps. In the paper, ‘Virtual scale function of gastrointestinal endoscopy for accurate polyp size estimation in real-time: a preliminary study, published in the Journal of Biomedical Optics, the explained that with the simple addition of a laser pointer to an endoscope and minimal image processing, an adaptive virtual scale can be layered on top of the images seen by the endoscopist in real-time.

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Declan McCole is a professor of biomedical sciences at UC Riverside. Credit: Carrie Rosema.

PTPN2 gene defect in IBD patients linked to gut leakiness

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1 year ago By Owen

A team of researchers led by a biomedical scientist at the University of California, Riverside, has identified a novel mechanism by which loss-of-function mutations in the gene PTPN2, found in many patients with inflammatory bowel disease (IBD), affect how intestinal epithelial cells maintain a barrier.

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The new pill can inject large quantities of monoclonal antibodies and other drugs into the lining of the stomach after being swallowed. Credit: Giovanni Traverso

Drug delivery capsule to replace protein drug injections

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1 year ago By Owen

A team of Massachusetts Institute of Technology engineers, in collaboration with scientists from Brigham and Women's Hospital and Novo Nordisk, is working on an alternative delivery strategy to injections that could make it much easier for Crohn's disease patients to benefit from monoclonal antibodies and other drugs that are usually injected. They envision patients could simply swallow a capsule that carries the drug and then injects it directly into the lining of the stomach.

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Antibiotics

Antibiotics can increase risk of colon cancer

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1 year ago By Owen

There is a clear link between taking antibiotics and an increased risk of developing colon cancer within the next five to ten years, according to a study including 40,000 cancer cases by researchers at Umeå University, Sweden. The impact of antibiotics on the intestinal microbiome is thought to lie behind the increased risk of cancer.

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Colorectal cancer

Innate lymphoid cells protect against colorectal cancer

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1 year ago By Owen

Innate lymphoid cells (ILC3s) protect against colorectal cancer, in part by helping to maintain a healthy dialog between the immune system and gut microbes, according to a study led by researchers at Weill Cornell Medicine and NewYork-Presbyterian. The findings, ‘Dysregulation of ILC3s unleashes progression and immunotherapy resistance in colon cancer’, published in Cell, could open the door to new strategies for treating this type of cancer.

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Thematic depiction of the experiences of living with Crohn’s anal fistula Themes are located in the central circles with the subthemes in the peripheries

Imperial researchers develop PROM for Crohn's perianal fistula

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1 year ago By Owen

Researchers Imperial College London have developed a patient-reported outcome measure (PROM) for Crohn's perianal fistula - the Crohn’s Anal Fistula Quality of Life scale (CAF-QoL) - for use as a PROM in research and clinical practice by capturing impact of the condition on the patient. According to Dr Samuel O Adegbola, who helped develop the scale, this new PROM lends itself to utility in clinical trial design for Crohn’s perianal fistulas, enabling consistency in data sets collected in this condition.

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Colon (Credit: CC0 Public Domain)

Researchers identify mechanism for development of rare colorectal cancer subtype

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1 year ago By Owen

Researchers from Rutgers Cancer Institute have discovered a mechanism to explain what drives the formation of mucinous colorectal adenocarcinoma (MAC), a rare subtype of colorectal cancer (CRC), as well as identifying the genes responsible for the regulation of this mechanism.

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Pregnancy

Pregnant and living with obesity could increase CRC risk in adult offspring

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1 year ago By Owen

A mother-to-be living with obesity could be increasing the risk of colorectal cancer (CRC) in her adult children, according to a study of more than 18,000 mother and child pairs, according to a study ‘Maternal obesity, pregnancy weight gain, and birth weight and risk of colorectal cancer’, published online in the journal Gut. The findings suggest that conditions in the womb may be key risk factors for the disease and help to explain rising rates of the disease among younger adults, the researchers stated.

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colorectal cancer cells

Early-onset of CRC unlikely to be a different disease from average-onset

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1 year ago By Owen

Early-onset colorectal cancer is unlikely to be a different disease from average-onset colorectal cancer, according to a paper, ‘A comprehensive comparison of early-onset and average-onset colorectal cancers’, published in the Journal of the National Cancer Institute.

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American Society of Colon and Rectal Surgeons

ASCRS publishes guidelines for management of colonic volvulus

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1 year ago By Owen

The American Society of Colon and Rectal Surgeons has published an updated set of evidence-based recommendations for management of colonic volvulus – as well as for a rare condition called acute colonic pseudo-obstruction (ACPO), which can mimic the symptoms of large bowel obstruction. The updated guidelines were published in Diseases of the Colon & Rectum (DC&R), the official journal of the American Society of Colon & Rectal Surgeons (ASCRS), published by Wolters Kluwer.

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Vitamin D

Study finds vitamin D may protect against young-onset colorectal cancer

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1 year ago By Owen

Consuming higher amounts of Vitamin D - mainly from dietary sources - may help protect against developing young-onset colorectal cancer or precancerous colon polyps, according to the first study to show such an association.

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Hypertension drugs

Hypertension drugs could improve CRC survival

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1 year ago By Owen

Common hypertension drugs may improve survival for patients with colorectal cancer, according to researchers from the University of Virginia School of Medicine's Department of Public Health Sciences. After reviewing outcomes of almost 14,000 patients with colorectal cancer, researchers determined that ACE inhibitors, beta-blockers and thiazide diuretics were all associated with decreased mortality. They also found that patients who took their blood pressure drugs consistently were less likely to die from their cancer.

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Colorectal surgery

Only 1 in 4 colorectal surgeons receive sustainable surgery guidance

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1 year ago By Owen

In a global survey carried out by the European Society of Coloproctology (ESCP), only 6% of respondents had received direction on sustainable surgery at a national level, with just the same proportion receiving guidance from their employer. In addition, almost three-quarters (74%) of surgeons have not received any guidance to improve the sustainability of their practice.

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Smart Powered Stapler

Panther Healthcare launches Powered Surgical Stapler

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1 year ago By Owen

Panther Healthcare has launched the Smart Powered Stapler platform that offers intelligent and automatic control over tissue compression, transection and resection for gastrointestinal (including bariatric), thoracic, colorectal, oncology, gynaecologic and other open and laparoscopic surgical procedures. The device has been released in Europe, the Middle East, Africa, North America and Latin America.

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Echelon Circular Powered Stapler

Echelon Stapler associated with major reduction in serious complications post-CRC surgery

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1 year ago By Owen

The outcomes from a real-world study have revealed that the Echelon Circular Powered Stapler was associated with a 74% reduction in anastomotic leak rates (1.8% vs. 6.9%) and a 44% reduction in 30-day inpatient hospital readmission rates (6.1% vs.10.8%) after colorectal surgery, compared with manual circular staplers.

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Faecal immunochemical tests

Detectable f-Hb via FIT in may indicate CRC in younger symptomatic patients

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1 year ago By Owen

Faecal immunochemical testing (FIT) may assist healthcare professionals to identify which younger patients with higher risk symptoms may require colonoscopy or other diagnostics to further determine if they have colorectal cancer (CRC) or other serious bowel diseases, according to the outcomes from the NICE FIT Study.

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Inflammatory bowel disease

IFIH1 gene mutation can cause rare inflammatory bowel disease

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1 year ago By Owen

Johns Hopkins Medicine researchers, in collaboration with national and international researchers, have identified a genetic mutation in a small number of children with a rare type of inflammatory bowel disease. The discovery of the mutation, which weakens the activity of a protein linked to how the immune system fights viruses in the gut, may help researchers pinpoint the cause of more common bowel diseases, investigators say.

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CUKK team

Faecal test that can detect polyps and early colon cancers with sensitivity over 90%

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1 year ago By Owen

The Faculty of Medicine at The Chinese University of Hong Kong (CU Medicine) has developed the world’s first faecal “bacterial gene markers” test (M3) based on metagenomic analysis of over 1,100 cancer subjects. The sensitivity of this non-invasive test is 94% for colorectal cancer detection which is comparable to that of a colonoscopy. The test can also accurately detect polyp recurrence with over 90% sensitivity. It is believed to be the first test to offer a non-invasive approach to screen for polyp recurrence.

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Cancer cells

Subgroup of metastatic colorectal cancer patients could benefit from immunotherapy

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1 year ago By Owen

Researchers at City of Hope who were investigating the most common type of metastatic colorectal cancer discovered that these patients are more responsive to checkpoint blockade immunotherapy, an innovative treatment that helps the immune system recognize and attack cancerous cells, if tumours have not spread to the liver.

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Fibre

Low-fibre diet, not weight, may cause gut infections

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1 year ago By Owen

Diet, more than body mass, may play a role in the risk for gut infection, and eating more fibre could be the key to prevention, according to a study, ‘Low dietary fiber promotes enteric expansion of a Crohn's disease-associated pathobiont independent of obesity’, published online in the American Journal of Physiology-Endocrinology and Metabolism.

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A new review in Chinese Medical Journal sheds light on the “molecular signatures” that can predict the specific responses of individuals to biologic therapeutics used for ulcerative colitis. Credit: Chinese Medical Journal`

Molecular biomarkers predict biologic therapy responses in ulcerative colitis

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1 year ago By Owen

A group of researchers from China and the US have sought to identify several molecular biomarkers corresponding to pathways involved in specific biologic therapy response against ulcerative colitis (UC) for their ability to non-response predictive potential. Their findings, ‘Potential molecular biomarkers used to predict the response to biological therapies in ulcerative colitis’, were published as a comprehensive review in Chinese Medical Journal.

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Colorectal screening

Why women are more likely than men to develop right-sided CRC

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1 year ago By Owen

Researchers at the Yale School of Public Health investigating why do right-sided and left-sided colon cancers differ, why are right-sided ones more dangerous and why do women get more of them are centring their research on metabolites and their role in human health, particularly in colorectal cancer.

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EAGLE_logo

EAGLE study seeking to reduce anastomotic leak rates following right sided bowel resection

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1 year ago By Owen

The investigators of the EAGLE study - an international service improvement study to investigate the value of an educational tool delivered to surgeons and their teams to reduce the risk of anastomotic leak (leak of a join in the bowel) after right hemicolectomy or ileocaecal resection – are encouraging more hospitals and surgeons to become involved in the study.

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Generic drugs

First patient treated in DESTINY-Gastric04 Trial of ENHERTU for advanced gastric cancer

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1 year ago By Owen

The first patient has been treated in the DESTINY-Gastric04, a global phase 3 trial evaluating the safety and efficacy of ENHERTU (trastuzumab deruxtecan), compared to ramucirumab/paclitaxel combination therapy in patients with HER2 positive metastatic and/or unresectable gastric or gastroesophageal junction (GEJ) adenocarcinoma with disease progression on or after a trastuzumab-containing regimen.

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Stomach pain

Neu3 enzyme responsible for colitis

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1 year ago By Owen

An international research group has reported that the Neuraminidase 3 (Neu3) enzyme is responsible for the onset and progression of colitis. Their findings, published in the Proceedings of the National Academy of Sciences, were based on a model of recurrent human food poisoning previously linked with the condition. The findings represent a scientific advance toward a targeted therapy to help the millions of people worldwide affected by the disorder.

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Exercise

Effect of acute exercise on bowel cancer cell growth

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1 year ago By Owen

Molecules released into the bloodstream during exercise (such as small proteins) can act directly on bowel cancer cells to slow down their growth. research has shown that regular physical activity reduces the risk of developing bowel cancer. This is mainly thought to happen because physical activity can help individuals to maintain a healthy body weight.

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The Cx20 function supports the identification of disease: During examinations, suspected lesions are automatically detected through video taken by endoscope devices. Doctors then extract still images (left) and analysis results are soon displayed (right) (Graphic: Business Wire)

AI assesses if colorectal lesions are potentially neoplastic

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1 year ago By Owen

NEC Corporation is developing an AI technology for supporting doctors in determining if colorectal lesions are neoplastic or non-neoplastic. A new technology called, Cx20, has already met the requirements for CE marking and will be integrated in the medical device AI diagnostic support software WISE VISION Endoscopy, with sales expected to start in Europe later in 2021.

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Geneoscopy Multi-Factor RNA-Fit Test

First patients enrolled in CRC-PREVENT Trial

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1 year ago By Owen

Geneoscopy has enrolled the first patients in the CRC-PREVENT pivotal trial to evaluate the safety and efficacy of Geneoscopy's noninvasive, at-home diagnostic screening test to successfully detect colorectal neoplasms, including advanced adenomas, in average-risk individuals, a group with no known co-morbidities associated with cancer risk and therefore more challenging to diagnose. The company's innovative diagnostic was granted Breakthrough Device Designation by the FDA in January of 2020.

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processed food

Ultra-processed food linked to higher risk of inflammatory bowel disease

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1 year ago By Owen

A higher intake of ultra-processed food is associated with higher risk of inflammatory bowel disease (IBD), according to a study, ‘Association of ultra-processed food intake with risk of inflammatory bowel disease: prospective cohort study’, published in The BMJ. Inflammatory bowel disease is more common in industrialised nations and it is thought that dietary factors might play a role, but data linking ultra-processed food intake with IBD are limited.

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colorectal cancer cells

CRC cells promote own growth and expansion

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1 year ago By Owen

Through a complex, self-reinforcing feedback mechanism, colorectal cancer cells make room for their own expansion by driving surrounding healthy intestinal cells to death, while simultaneously fuelling their own growth. This feedback loop is driven by an activator of the innate immune system, according to researchers from the German Cancer Research Center (DKFZ) and the University of Heidelberg, who discovered this mechanism in the intestinal tissue of fruit flies.

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Micrograph showing inflammation of the large bowel in a case of inflammatory bowel disease. Colonic biopsy. (Credit: Wikipedia/CC BY-SA 3.0)

Factors associated with statural growth differ by sex in paediatric patients with Crohn's disease

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1 year ago By Owen

Growth impairment, a common complication of Crohn's disease in children, occurs more often in males than females, but the reasons are unclear. Now, a physician-scientist from Weill Cornell Medicine and NewYork-Presbyterian and colleagues at eight other centres have found that factors associated with statural growth differ by sex.

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ulcerative colitis

STELARA demonstrates sustained symptomatic and corticosteroid-free remission in adults with moderately to severely active UC

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1 year ago By Owen

Janssen Pharmaceutical Companies of Johnson & Johnson have announced three-year data from the long-term extension (LTE) of the STELARA (ustekinumab) Phase 3 UNIFI study that demonstrated the majority (55.2 percent) of adult patients with moderately to severely active ulcerative colitis (UC) who initially responded to treatment with STELARA sustained symptomatic remission rates at nearly three years (week 152). Furthermore, a majority (96.4 percent) of the patients in symptomatic remission at week 152 were corticosteroid-free.

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Colorectal surgery

ESCP launches ‘Sustainable Surgery’ campaign

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1 year ago By Owen

The European Society of Coloproctology is launching its #SustainableSurgery campaign, month-long focus on sustainability aims to create a movement among the colorectal community that focuses on the health of the planet, as well as of the health of patients. The day-to-day activities of the healthcare sector contribute greatly to climate change. A 2019 Lancet report suggests that 4.6% of all global greenhouse gas emissions are attributed to the sector.

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Generic drugs

Bold Therapeutics gains FDA approval for cancer trial expansion

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1 year ago By Owen

The FDA has approved an Investigational New Drug Application (IND) amendment for Bold Therapeutics’ BOLD-100-001, allowing for the addition of clinical trial sites in the US. BOLD-100-001 is an open-label, multicentre two-stage study designed to evaluate the safety and efficacy of BOLD-100 in combination with FOLFOX (5-fluorouracil, leucovorin, oxaliplatin) chemotherapy in patients with advanced gastric, pancreatic, colorectal and bile duct cancers.

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Colorectal cancer

Low-to-moderate activity levels improves QoL after CRC

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1 year ago By Owen

World Cancer Research Fund (WCRF) has announced two new studies, which report that a reduction in sedentary behaviour has a positive impact on the quality of life after colorectal cancer (CRC). The first study, published in Medicine & Science in Sports & Exercise, analysed nearly 400 bowel cancer survivors for two years to assess how sedentary behaviour and moderate-to-vigorous physical activity impact health-related quality of life and fatigue.

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Sun light

Inadequate exposure to UVB light associated with an increased risk of CRC

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1 year ago By Owen

Inadequate exposure to UVB light from the sun may be associated with an increased risk of colorectal cancer, particularly in older age groups, according to a study, ‘Could age increase the strength of inverse association between ultraviolet B exposure and colorectal cancer?’, published in BMC Public Health.

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chemotherapy

Lower chemotherapy doses linked to poorer outcomes for CRC patients with obesity

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1 year ago By Owen

Patients with obesity and colorectal cancer receive lower cumulative doses of adjuvant chemotherapy, relative to their body surface area (BSA), than patients without obesity, according to the results from a large meta-analysis reported at the ESMO World Congress on Gastrointestinal Cancer 2021.

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Antibiotics

Antibiotic use associated with increased risk of early onset colon cancer

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1 year ago By Owen

Doctors and patients are being advised to reduce unnecessary antibiotic use following new data suggesting that these medicines may increase the risk of colon cancer, especially in people under 50 years.

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High resolution image of a representative colorectal cancer with highlighted a cluster of CD74+ macrophages (back image) and their interactions with CD8+GzB+ and CD8+Ki67+ T cells (zoom-ins). Credit: The Francis Crick Institute

Best predictors of whether immunotherapy will be effective in colorectal cancer

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1 year ago By Owen

Scientists from the Francis Crick Institute and King's College London studying colorectal cancer have found that levels of specific immune cells are the best predictors of whether immunotherapy will be effective in individual patients.

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Endoscopy

Comprehensive stools tests could replace endoscopy

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1 year ago By Owen

Researchers from the University of Houston biomedical have reported a step forward in diagnosing intestinal diseases, including colorectal cancer, ulcerative colitis and Crohn's disease using stool proteins. The current gold standard for colon cancer testing measures blood (haemoglobin) present in stool, and tests for inflammatory bowel disease (IBD) measure levels of calprotectin, a protein that detects inflammation in the intestines.

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Micrograph showing inflammation of the large bowel in a case of inflammatory bowel disease. Colonic biopsy. Credit WikipediaCC BY-SA 3.0

Yeast probiotic designed to treat inflammatory bowel disease

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1 year ago By Owen

Researchers from Brigham and Women's Hospital have developed a designer probiotic - a thoughtfully engineered yeast that can induce multiple effects for treating inflammatory bowel disease (IBD). Previous research by Dr Francisco Quintana, an investigator in the Ann Romney Center for Neurologic Diseases at the Brigham, and colleagues, has helped illuminate the connection between the gut and diseases that affect the brain, suggesting potential applications for engineering probiotics beyond IBD.

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Anti-PD-1 cancer immunotherapies boost the body's cancer-fighting T cells, but in many patients, suppressive Tfr cells bring that progress to a grinding halt. Credit: La Jolla Institute for Immunology

Researchers revealed why some cancer patients do not respond to checkpoint inhibitors

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1 year ago By Owen

Research led by scientists at La Jolla Institute for Immunology (LJI) and the University of Liverpool may explain why many cancer patients do not respond to anti-PD-1 cancer immunotherapies also called checkpoint inhibitors. The team reported that these patients may have tutors with high numbers of T follicular regulatory (Tfr) cells.

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Monash University and ModifyHealth

Monash University and ModifyHealth unite to increase awareness of the FODMAP Diet for IBS patients

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1 year ago By Owen

ModifyHealth, together with Monash University, Australia, have entered a partnership that will seek to raise further awareness in the US of the FODMAP diet protocol and the Monash University FODMAP Diet App, which have helped millions of people manage irritable bowel syndrome (IBS). The partnership will increase engagement with US consumers and healthcare providers, and expand awareness of the latest research and developments of the FODMAP diet protocol.

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Cancer cells

Cancers with common mutation develop resistance to targeted drugs

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1 year ago By Owen

Dana-Farber Cancer Institute researcher have revealed the genomic landscape of tumours that have grown resistant to drugs targeting the abnormal KRASG12C protein. Their work shows that, far from adopting a common route to becoming resistant, the cells take a strikingly diverse set of avenues, often several at a time.

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Fibre

Plant fibre gel doubles rate of tumour eradication

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1 year ago By Owen

Manipulating the gut microbiome to produce 'beneficial' commensal microbes, which protect the host from pathogens and can boost immune responses, among other things, could potentially help patients respond better to cancer drugs called immune checkpoint inhibitors, a type of immunotherapy.

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Cancer cells

Blood test that can detect more than 50 types of cancer

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1 year ago By Owen

Final results from a study of a blood test that can detect more than 50 types of cancer have shown that it is accurate enough to be rolled out as a multi-cancer screening test among people at higher risk of the disease, including patients aged 50 years or older, without symptoms.

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Colorectal surgery

Universal healthcare increased CRC survival

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1 year ago By Owen

Patients with colorectal cancer (CRC) enrolled in the US military's universal health care system experienced improved survival compared with patients in the general population, according to the results from a study, ‘Comparison of Survival among Colon Cancer Patients in the U.S. Military Health System and Patients in the Surveillance, Epidemiology, and End Results (SEER) Program’, published in Cancer Epidemiology, Biomarkers & Prevention.

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ENSEAL X1 Curved Jaw Tissue Sealer

Ethicon launches ENSEAL X1 Curved Jaw Tissue Sealer

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1 year ago By Owen

Ethicon has launched the ENSEAL X1 Curved Jaw Tissue Sealer, a new advanced bipolar energy device, which the company claims increases procedural efficiency1 and provided stronger sealing2 and better access to more tissue than LigaSure Maryland33 The device is indicated for colorectal, gynecological, bariatric surgery and thoracic procedures.

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Colorectal cancer

Younger CRC patients increased mortality associated with late diagnosis

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1 year ago By Owen

There is a survival benefit associated with early-onset colorectal cancer (CRC) compared with later-onset CRC reinforcing the importance of early CRC detection in the younger population, according to researchers at Yale School of Public Health in New Haven, CT.The outcomes were featured in the paper, ‘Analysis of Survival Among Adults With Early-Onset Colorectal Cancer in the National Cancer Database', published in JAMA Open Network.

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Endoscopy

IBS is endoscopically identifiable from mucosal biofilms

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1 year ago By Owen

Researchers from the Department of Medicine III of the Medical University of Vienna and the University of Vienna have shown that in most cases, Irritable bowel syndrome (IBS) is associated with bacterial biofilms in the gut that are visible under endoscopic examination.

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Red meat

Red meat damages DNA linked with colorectal cancer

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1 year ago By Owen

Researchers at the Dana-Farber Cancer Institute have identified specific patterns of DNA damage triggered by diets rich in red meat, further implicating the food as a carcinogen while heralding the possibility of detecting the cancer early and designing new treatments. The findings featured in the paper, ‘Discovery and features of an alkylating signature in colorectal cancer’, published in Cancer Discovery, also reported increased cancer-related mortality in patients with colorectal cancer.

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Cancer cells

Leukaemia drugs could kill and limit reproduction of bowel cancer cells

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1 year ago By Owen

Drugs that are being trialled to treat leukaemia could also be used to fight bowel cancer according to researchers from Hudson Institute of Medical Research scientists. In a world-first, researchers found that the drugs could potentially be used to fight bowel cancer, using Nobel Prize-winning genetic screening technology CRISPR.

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Generic drugs

Combination immunotherapy approved for metastatic bowel cancer in England

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1 year ago By Owen

The National Institute of Health and Care Excellence (NICE) has approved the combined use of nivolumab (Opdivo) and ipilimumab (Yervoy) for patients who have previously been treated metastatic bowel cancer in England.

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Cancer cell

Targovax completes durvalumab advanced CRC trial enrolment

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1 year ago By Owen

Targovax has announced that the ONCOS-102 and durvalumab trial in patients with advanced peritoneal malignancies has completed enrolment in the colorectal cancer cohort. This phase 1/2 trial is investigating the safety, biologic and anti-tumour activity of ONCOS-102 in combination with Imfinzi (durvalumab, anti-PD-L1) in patients with advanced peritoneal malignancies who have failed prior standard chemotherapy and have histologically confirmed platinum-resistant or refractory epithelial ovarian or colorectal cancer.

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Tissue of the small intestine. Credit: Dr. Markus Winter/AG Hermeking

14-3-3sigma gene acts as a tumor suppressor in intestinal cancers

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1 year ago By Owen

Researchers at Ludwig Maximilian University of Munich’s (LMU) Institute of Pathology have discovered a gene called 14-3-3sigma that functions as a tumour suppressor in gastrointestinal cancers. Using the mouse as an experimental model, the team demonstrated that inactivation of the 14-3-3sigma gene enhance progression of gastrointestinal cancers and consequently shortens the lifespan of mice. The findings were featured in the study, '4-3-3σ Functions as an Intestinal Tumor Suppressor', published in Cancer Research.

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Cancer cells

Minimally-invasive blood test can identify cancer in its pre-cancerous form

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1 year ago By Owen

Results from the OMICS study, an international, multi-centre study, has revealed that Universal DX's blood test can detect colorectal advanced adenomas at 55% sensitivity and 90% specificity, which exceeds currently available non-invasive tests for colorectal cancer screening 80% of sporadic colorectal cancers arise from pre-malignant advanced adenomas, according to the company. The results were announced at the European Association of Cancer Research (EACR) 2021 virtual conference. 

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Activ Surgical

Activ Surgical introduces ActivInsights Software Suite to enhance OR safety

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1 year ago By Owen

Activ Surgical, the company that completed the world’s first autonomous robotic surgery of soft tissue, has introduced hardware-agnostic surgical software that allows surgical systems to collaborate with surgeons. Activ Surgical’s patent-protected surgical software platform reduces unintended and preventable surgical complications by enhancing a surgeon’s intra-operative decision making. ActivInsights software suite is a proprietary augmented reality (AR)-based bundle that offers real time tissue assessment in the form of previously unavailable visual overlays.

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The device has two key elements -- a soft, stretchy tube made of silicone-based rubber, and a plastic coating etched with needles that pop up when the tube is stretched. Credit: MIT

MIT researchers develop stent to deliver drugs to GI tract

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1 year ago By Owen

Researchers at MIT and their collaborators have designed a new type of stent that could be used to deliver drugs to the gastrointestinal tract, respiratory tract, or other tubular organs in the body. The stents are coated in a smooth layer of plastic etched with small "needles" that pop up when the tube is stretched, allowing the needles to penetrate tissue and deliver a payload of drug-containing microparticles. Those drugs are then released over an extended period of time after the stent is removed.

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Colorectal screening

Increase in screening could contribute to higher risk of CRC for black people

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1 year ago By Owen

Black people have a higher risk of colorectal cancer (CRC) than white people, but this risk is likely not due to genetics, according to data from a study by researchers from the US Department of Veterans Affairs, Regenstrief Institute and the Indiana University School of Medicine. The study, 'Prevalence of Advanced Colorectal Neoplasia in Veterans', was published in the Journal of Clinical Gastroenterology.

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Stomach pain

Study finds COVID-19 vaccines safe for IBD patients

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1 year ago By Owen

Seventy percent of patients with Inflammatory Bowel Disease (IBD) patients reported concern about side effects from the vaccines, according to a published survey at the beginning of COVID-19 vaccine distribution. The findings were reported in the study, ‘Adverse Events Following SARS-CoV-2 mRNA Vaccination’, published in the American Journal of Gastroenterology.

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opioid

Many surgery patients unnecessarily prescribed opioid

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1 year ago By Owen

Surgeons can ease their patients' pain from common operations without prescribing opioids, and avoid the possibility of starting someone on a path to long-term use, two studies suggests. Treating post-surgery pain with non-opioid pain medications such as ibuprofen or acetaminophen didn't lead to higher pain levels or more serious issues during recovery, and didn't dampen patients' satisfaction with their care, according to the results from a study of more than 22,000 patients who had one of seven common operations at 70 hospitals.

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Colon intestinal organoids (two images at left) — cell lines grown from intestinal stem cells that function like miniature colons — enable Johns Hopkins Medicine researchers to study molecular-level changes in the tissue microenvironment that lead to the emergence of colon polyps (image on right) and cancer. Credit: T. Chen, M.D., Ph.D., and T. Larman, M.D., Johns Hopkins Medicine

Molecular changes in tissue microenvironment could promote colorectal cancer

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1 year ago By Owen

Johns Hopkins Medicine researchers has been focusing its research on better understanding the molecular-level characteristics of the cell lining - known as the epithelium - of the colon in order to define how cancer may begin there.

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Cancer cells

Tracking the development of metastatic cells

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1 year ago By Owen

In a new study, a team led by Dr Kamen Simeonov, a PhD student at the University of Pennsylvania Perelman School of Medicine and School of Veterinary Medicine professor Christopher Lengner has made strides toward deepening that understanding by tracking the development of metastatic cells. Their work used a mouse model of pancreatic cancer and cutting-edge techniques to trace the lineage and gene expression patterns of individual cancer cells.

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high fat diets

New association between high fat diets and CRC

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1 year ago By Owen

An Arizona State University study led by Mana and her team has shown in greater detail than ever before of how high fat diets can trigger a molecular cascade of events that leads to intestinal and colon cancer. The study, ‘High-fat diet-activated fatty acid oxidation mediates intestinal stemness and tumorigenicity’, published in Cell Reports.

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Drugs

Bold Therapeutics' BOLD-100 granted Orphan Drug Designation for gastric cancer

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1 year ago By Owen

The FDA has granted BOLD-100 (Bold Therapeutics) an Orphan Drug Designation (ODD) in the treatment of gastric cancer. BOLD-100 is a first-in-class ruthenium-based small molecule therapeutic that alters the unfolded protein response (UPR) through selective GRP78 inhibition and induces reactive oxygen species (ROS) which causes DNA damage and cell cycle arrest.

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Cologuard

Cologuard superior to FIT on cost effectiveness and CRC incidence and mortality

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1 year ago By Owen

New data presented at the 2021 Digestive Disease Week has reported that Cologuard (mt-sDNA) provided the greatest reduction in CRC incidence versus annual faecal immunochemical test (FIT) and annual faecal occult blood test (FOBT) in a representative Medicare population.

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EndoFresh Disposable Digestive Endoscopy System

EndoFresh gains FDA approval for Disposable Digestive Endoscopy System

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1 year ago By Owen

The FDA has approved EndoFresh’s Disposable Digestive Endoscopy System that features a camera system with innovative all-in-one design, disposable upper GI endoscope and disposable colonoscope, which are used together with the medical display and other peripheral devices to allow physicians to visualise, diagnose and operate gastrointestinal endoscopy.

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Zeposia

FDA approves Bristol Myers Squibb’s Zeposia (ozanimod) for moderately to severely active Ulcerative Colitis

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1 year ago By Owen

The FDA has approved Bristol Myers Squibb’s Zeposia (ozanimod) 0.92mg for the treatment of adults with moderately to severely active ulcerative colitis (UC). Zeposia (ozanimod) is a sphingosine 1-phosphate (S1P) receptor modulator that binds with high affinity to S1P receptors 1 and 5. Zeposia reduces the capacity of lymphocytes to migrate from lymphoid tissue, reducing the number of circulating lymphocytes in peripheral blood.

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bowel cancer

Clinical trial to assess whether Lithium prevents CRC

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1 year ago By Owen

Lithium could boost the fitness of healthy stem cells in the gut, making them more resistant to sabotage from mutant stem cells that cause cancer, according to researchers in the Netherlands, funded by the UK charity Worldwide Cancer Research. They have initiated a clinical trial to find out if Lithium - a commonly used psychiatric drug - could be used to prevent bowel cancer in people.

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Confocal micrographs of mouse small intestine with the Red2Onco technology. With Red2Onco, the oncogenic mutant clones (Red clones), and normal or wild-type clones (Yellow or Cyan clones) can be labeled in the same tissue. The mutant clones expand considerably faster than wild-type clones, suggesting field expansion of the mutant clones. Images acquired after 6 months of tissue lineage tracing. Credit: Yum/IMBA

Red2Onco's multicolour system can trace intestinal tumour development

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1 year ago By Owen

Researchers from the Institute of Molecular Biotechnology  of the Austrian Academy of Sciences (IMBA) and the University of Cambridge have reported that Red2Onco, an innovative genetic mouse model, can detect the very initial steps that lead to cancer development. Red2Onco's multicolour labelling system allows to trace intestinal tumour development after the first oncogenic hit at the single cell level. The findings were featured in the paper, ‘Tracing oncogene-driven remodelling of the intestinal stem cell niche’, published in Nature.

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Crypts and buds in the small intestine and colon. Credit: Dr. Maree Faux, WEHI.

Measuring circulating tumour DNA predicts bowel cancer recurrence

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1 year ago By Owen

A biomarker in the blood of patients with bowel cancer may provide valuable insight into the risk of cancer relapse after surgery and the effectiveness of chemotherapy.

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Genetics

NOTUM molecule indicated in genetic predisposition to CRC

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1 year ago By Owen

An international team of scientists have identified key factors underpinning the development of colorectal cancer in patients with a genetic predisposition to the disease. The study, 'NOTUM from Apc-mutant cells biases clonal competition to initiate cancer', published in Nature, was led by researchers at the Cancer Research UK Beatson Institute at the University of Glasgow and the University of Helsinki.

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Figure 1: Local RT eliminates late-stage MC38 tumors in Sirpα−/− mice but not WT mice. From: Intratumoral SIRPα-deficient macrophages activate tumor antigen-specific cytotoxic T cells under radiotherapy

Immunotherapy could revolutionise CRC treatment

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1 year ago By Owen

A novel form of macrophage-based immunotherapy is effective at treating a broad spectrum of cancers, including colorectal cancer (CRC) and those at advanced stages, according to a ground-breaking study led by Georgia State immunology professor Yuan Liu. The researchers found that local radiation therapy (RT) cured colorectal cancer and two types of pancreatic cancer in SIRPα-deficient mice with advanced tumours. The findings are significant, given that colorectal and pancreatic cancers are often treatment-resistant with high mortality rates.

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Figure 1: Digital dynamic discrimination of primary colorectal cancer using systemic indocyanine green with near-infrared endoscopy

AI technique can detect colorectal cancerous tissue in real time

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1 year ago By Owen

A surgical technique developed at University College Dublin uses artificial intelligence to detect cancerous tissue in real time during surgery could radically improve health outcomes. The new method demonstrates how with the use of a digital camera and dyes, cancer processes in living tissue can be viewed during an operation, allowing surgeons to see the exact extent of cancers during a procedure, ensuring that the maximum amount of cancerous tissue is surgically removed.

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Gut microbiota

Good bacteria shows promise for Crohn's disease and ulcerative colitis treatments

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1 year ago By Owen

A consortium of bacteria designed to complement missing or underrepresented functions in the imbalanced microbiome of inflammatory bowel disease (IBD) patients, prevented and treated chronic immune-mediated colitis - in humanised mouse models. The findings were featured in the paper, ‘Rationally designed bacterial consortia to treat chronic immune-mediated colitis and restore intestinal homeostasis’, published in Nature Communications.

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American Gastroenterological Association

Early use of biologics recommended for moderate-to-severe Crohn's disease

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1 year ago By Owen

The American Gastroenterological Association has released new clinical guidelines outlining the benefits and risks of each drug currently available to Crohn's patients. Based on this research, AGA recommends the early introduction of biologics for patients experiencing luminal and fistulising Crohn's disease rather than waiting until other treatments fail. These guidelines, ‘AGA Clinical Practice Guideline on the Medical Management of Moderate to Severe Luminal and Fistulizing Crohn's Disease’, were published in Gastroenterology.

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Crohn’s disease

Crohn’s disease: Prognostic model predicts early-onset complications leading to surgery

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1 year ago By Owen

Researchers from The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong Province, China, have developed a prognostic model that effectively predicted early-onset complications leading to surgery and screened aggressive Crohn’s disease (CD), which will enable physicians to customise therapeutic strategies and monitor disease. They identified age, extraintestinal manifestations, previous surgery, perianal disease and disease duration as independent factors associated with complications leading to surgery in patients with Crohn’s Disease.

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Toilet

Smart toilet could analyse stool for health problems

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1 year ago By Owen

An artificial intelligence tool under development at Duke University can be added to the standard toilet to help analyse patients' stool and give gastroenterologists the information they need to provide appropriate treatment, according to research presented at Digestive Disease Week (DDW) 2021. The new technology could assist in managing chronic gastrointestinal issues such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS).

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Food

Non-genetic factors associated with colorectal cancer

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1 year ago By Owen

Several non-genetic factors - including greater red meat intake, lower educational attainment and heavier alcohol use - are associated with an increase in colorectal cancer (CRC) in people under 50. The findings were featured in the paper, ‘Nongenetic Determinants of Risk for Early-Onset Colorectal Cancer’ published in JNCI Cancer Spectrum.

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Stomach pain

Symptoms of IBS improved under COVID-19 lockdown

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1 year ago By Owen

Patients' irritable bowel syndrome (IBS) symptoms unexpectedly improved when they were under COVID-19 stay-at-home orders, reaffirming the gut-brain connection in functional gastrointestinal disorders, according to the study, ‘Gut-brain axis and irritable bowel syndrome during SARS-CoV-2 pandemic. A survey-based study (abstract Su093), presented at Digestive Disease Week (DDW) 2021.

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Cancer cells

Colorectal cancer screening after 75 lowers cancer death risk for most

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1 year ago By Owen

Researchers Massachusetts General Hospital (MGH) have reported that screening endoscopy for persons older than 75 in otherwise good health can reduce the risk of colorectal cancer incidence and cancer-related death by approximately 40%. The researchers also found, however, that screening did not provide a significant survival benefit for individuals older than 75 with cardiovascular disease, diabetes or three or more other health conditions.

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Dr Marco Gerlinger and Dr Louise Barber in the lab (Credit: Institute of Cancer Research)

Long-range weather forecasts CRC drug resistance

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1 year ago By Owen

Scientists can use genetic 'weather forecasting' to predict how long it will take for colorectal cancer (CRC) to evolve resistance to a drug before a patient has even started treatment, a study by researchers at The Institute of Cancer Research, London and The Royal Marsden NHS Foundation Trust has shown.

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Colorectal cancer

Bariatric surgery associated with increased CRC risk

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1 year ago By Owen

The risk of developing colorectal cancer risk (CRC) increases after bariatric surgery, according to a study presented at Digestive Disease Week by researchers from Health & Science University, Portland, Oregon and The Ohio State University, Columbus, OH. Their findings were outlined in the study, ‘The impact of bariatric surgery on colorectal cancer risk: a matched analysis using a nationwide US cohort’ (Presentation Number: Sa025), after the investigators assessed CRC risk using a large US cohort and after accounting for multiple confounders.

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A tiny, 3D model of the intestines formed from anti-inflammatory cells known as Paneth cells (green and red) and other intestinal cells (blue) is seen in the image above. Researchers at Washington University School of Medicine in St. Louis and the Cleveland Clinic used such models, called organoids, to understand why a Western-style diet rich in fat and sugar damages Paneth cells and disrupts the gut immune system. Credit: Ta-Chiang Liu

Western diet increases risk of gut inflammation, infection and IBD

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1 year ago By Owen

Eating a Western diet impairs the immune system in the gut in ways that could increase risk of infection and inflammatory bowel disease, according to a study from researchers at Washington University School of Medicine in St Louis and Cleveland Clinic.

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Colorectal screening

Colorectal cancer screening is lowered to 45

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1 year ago By Owen

The US Preventive Services Task Force (USPSTF) has recommended that individuals of average risk for colorectal cancer (CRC) should begin screening exams at 45 years of age instead of the traditional 50. The guideline changes updates its 2016 recommendations and aligns them with those of the American Cancer Society, which lowered the age for initiation of screening to 45 years in 2018. The guidelines were published in the paper, ‘Screening for Colorectal Cancer - US Preventive Services Task Force Recommendation Statement’, in JAMA.

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E coli (Credit: National Institute of Allergy and Infectious Diseases (NIAID))

Engineered organism could diagnose active Crohn's disease inflammation

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1 year ago By Owen

Rice University researchers have engineered a strain of the gut bacteria E. coli that senses pH and glows when it encounters acidosis, an acidic condition that often occurs during flareups of inflammatory bowel diseases like colitis, ileitis and Crohn's disease.

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Zemedy app

Zemedy app offers effective at-home treatment for IBS

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1 year ago By Owen

A new mobile digital therapeutic, Zemedy, offers resources centred around cognitive behavioural therapy (CBT) that focus on gut-brain miscommunication and hypersensitivity around gut sensations happening for someone with irritable bowel syndrome (IBS).

Irritable bowel syndrome (IBS) affects up to 10% of the US population and costs upwards of US$1 billion a year in medical bills and lost productivity, according to Penn clinical psychologist Melissa Hunt, who has spent 15 years studying the condition.

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Obesity and cancer

Obesity-related cancer deaths hampering cancer mortality improvements

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1 year ago By Owen

Cancer death rates have fallen dramatically in the United States, but factor in obesity, as researchers did at the University of North Carolina Gillings School of Global Public Health, and the picture changes. Based on mortality data for 50 million people, deaths from cancers not associated with obesity (lung cancer and skin cancer etc) are declining at a rate almost three times faster than cancers linked to obesity, such as stomach, colorectal, uterine, thyroid and postmenopausal breast cancer.

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Genetic risk

Lifestyle changes benefit people at high genetic risk of colorectal cancer

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1 year ago By Owen

People with a high polygenic risk score for colorectal cancer could benefit more at preventing the disease by leading healthy lifestyles than those at lower genetic risk, according to a study ‘Healthy lifestyles, genetic modifiers, and colorectal cancer risk: a prospective cohort study in the UK Biobank’, by Vanderbilt researchers published in the April issue of the American Journal of Clinical Nutrition.

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High magnification micrograph of Crohn's disease. Biopsy of esophagus. H&E stain. (Credit: Nephron/Wikipedia)

Crohn's patients have specific IgG antibodies to human bacterial flagellins

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1 year ago By Owen

Researchers at the University of Alabama at Birmingham (UAB) have moved a step closer to possible clinical testing of a mouse model that includes immune-reactive T cells from patients with Crohn's disease in a flagellin peptide-specific immunotherapy, which might provide similar benefits in patients.

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Mitochondria Credit: Cancer Research UK

Cancer is not a disease of the genome, but genomes

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1 year ago By Owen

Researchers at the Cancer Research UK Beatson Institute, led by Dr Payam Gammage, and in collaboration with scientists at the Memorial Sloan Kettering Cancer Center in the US led by Dr Ed Reznik, have revealed the substantial impact mutations in mitochondrial DNA (mtDNA) can have in cancer. Understanding this could offer up new indicators of disease prognosis and provide a new focus for future therapeutics.

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Sugary drinks

Sugar-sweetened drinks associated with increased risk of CRC in women under 50

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1 year ago By Owen

Researchers from Washington University School of Medicine in St. Louis has found a link between drinking sugar-sweetened beverages and an increased risk of developing colorectal cancer in women under age 50. The findings suggest that heavy consumption of sugary drinks during adolescence (ages 13 to 18) and adulthood can increase the disease risk.

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AEON Endostapler

Lexington’s AEON Endostapler reaches 10,000 procedure milestone

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1 year ago By Owen

Lexington Medical has announced that the company has achieved over 10,000 successful surgeries with the AEON Endostapler for multiple specialties across multiple countries.

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Colorectal screening

Disparities in colorectal cancer screenings

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1 year ago By Owen

Patients with one or more health conditions are more likely to be screened for colorectal cancer than those without comorbidities, according to researchers from the University of Texas Medical Branch Hospitals in Galveston, TX. The outcomes were featured in the paper, ‘National disparities in colorectal cancer screening in patients with comorbid conditions: an analysis of the Behavioral Risk Factor Surveillance System’, published in the Journal of Osteopathic Medicine.

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Colon polyps

Intestinal polyps in close relatives can increase risk of CRC

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1 year ago By Owen

In the largest registry study to date, researchers at Karolinska Institutet and Harvard University in the USA, have reported a possible connection between colorectal polyps in close relatives and the risk of developing colorectal cancer. The study, ‘Risk of colorectal cancer in first degree relatives of patients with colorectal polyps: nationwide case-control study in Sweden’, published in the British Medical Journal, is of potential consequence for different countries' screening procedures.

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The low T cells are due to exosomal, immunosuppressive miRNAs that disrupt T cell function and loss of T cells in the tumor environment. Credit: University of Minnesota Medical School

Blocking immunosuppressive microRNAs in colorectal cancer cells proves effective

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1 year ago By Owen

University of Minnesota Medical School researchers have uncovered a new way to potentially target and treat late-stage colorectal cancer by identifying a novel mechanism by which colorectal cancer cells evade an anti-tumour immune response, which helped them develop an exosome-based therapeutic strategy to potentially treat the disease.

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Nectrotising enterocolitis ( radswiki.net)

Necrotising enterocolitis treated with hPSC therapy

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1 year ago By Owen

Scientists at the Wake Forest Institute for Regenerative Medicine (WFIRM) are treating necrotising enterocolitis with a human placental-derived stem cell (hPSC) therapy strategy that is showing promising results, they reported that stem cell therapy promoted healing of the intestinal damage at both the cellular and whole tissue levels.

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Stomach pain

IBD: Infliximab can impair COVID-19 vaccine response

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1 year ago By Owen

People who take infliximab for inflammatory bowel disease (IBD) should not assume they are protected after a first dose of COVID-19 vaccine, after a large-scale study found many had poor antibody responses. The research measured antibody responses after vaccination with the Pfizer/BioNTech or the Oxford/AstraZeneca COVID-19 vaccine in 865 people treated with infliximab, an anti-tumor necrosis factor (anti-TNF) biologic drug.

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Faecal immunochemical test (FIT)

Most people prefer stool-based test to colonoscopy

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1 year ago By Owen

Most individuals with an average risk of colorectal cancer said they would prefer a stool-based screening test for colorectal cancer over colonoscopy, the method most often recommended by health care providers, according to results of a study, ‘National Survey of Patient Factors Associated with Colorectal Cancer Screening Preferences’, was published in Cancer Prevention Research, a journal of the American Association for Cancer Research.

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Cancer cells

AI could create better outcomes for CRC patients

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1 year ago By Owen

A test which uses artificial intelligence (AI) to measure proteins present in some patients with advanced bowel colorectal cancer (CRC) could hold the key to more targeted treatment, according to researchers published today at the University of Leeds and Roche Diagnostics, and will help doctors and patients to decide on the best treatment options.

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Interleukin 11 as a marker of cancer-associated fibroblasts

Interleukin 11 as a marker of cancer-associated fibroblasts

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1 year ago By Owen

Researchers from Toho University School of Medicine, Tokyo, Japan, have discovered that Interleukin (IL)-11 (IL-11+) cells in the colon of mice have colitis-associated colorectal cancer, the IL-11+ cells were absent from the colon under normal conditions but rapidly appeared in the tissues of mice with colitis and colorectal cancer. These results were reported in the paper, ‘Interleukin-11-expressing fibroblasts have a unique gene signature correlated with poor prognosis of colorectal cancer’, published in Nature Communications.

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Left-hand: FITC-labeled Lactobacillus acidophilus (LA1). Right-hand: Bright field Lactobacillus acidophilus (LA1). (Credit: Rana Al-Sadi)

Probiotic Lactobacillus acidophilus can treat IBD by preserving and restoring the intestinal barrier

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1 year ago By Owen

Intestinal epithelial tight junctions (TJs) act as a functional and structural barrier against harmful antigens that promote intestinal inflammation in inflammatory bowel disease (IBD) and other inflammatory conditions of the gut. A defective intestinal TJ barrier, sometimes known as "leaky gut," plays an important role in exacerbating and prolonging intestinal inflammation.

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Cancer cells

Liquid biopsy test detects lymph node metastasis in early-stage T1 colorectal cancer

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1 year ago By Owen

Scientists at City of Hope have developed a novel, non-invasive liquid biopsy test for detecting lymph node metastasis in individuals with high-risk T1 colorectal carcinoma. Research on the development of the blood test was reported in a study, ‘A Liquid Biopsy Assay for Noninvasive Identification of Lymph Node Metastases in T1 Colorectal Cancer’, published in Gastroenterology, a journal of the American Gastroenterological Association.

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Cancer cells

Colon cancer driven by hereditary gene mutations in one in six patients

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1 year ago By Owen

A Mayo Clinic study has reported that one in six patients with colorectal cancer (CRC) had an inherited cancer-related gene mutation, which likely predisposed them to the disease. In the study, ‘Use of Family History and Genetic Testing to Determine Risk of Colorectal Cancer’, published in Clinical Gastroenterology and Hepatology, researchers within the Mayo Clinic Center for Individualized Medicine also discovered that 60% of these cases would not have been detected if relying on a standard guideline-based approach.

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PillCam

Colon capsule endoscopy could reshape bowel cancer diagnosis

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1 year ago By Owen

NHS England announced a pilot programme that will offer some people with potential bowel cancer symptoms a colon capsule endoscopy, instead of the more invasive colonoscopy test. It is a small pilot at the moment, with 40 centres signed up and 11,000 pill cameras available.

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Colorectal screening

ACG updates guidelines for colorectal cancer screening

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1 year ago By Owen

The American College of Gastroenterology has published updated recommendations for colorectal cancer (CRC) screening, ‘ACG Clinical Guidelines: Colorectal Cancer Screening 2021’, in the American Journal of Gastroenterology. The latest guidelines are an update from the 2009 American College of Gastroenterology CRC screening guidelines.

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Helicobacter pylori

Bacterial molecule could be key to fighting stomach cancer

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1 year ago By Owen

A group of researchers from Osaka University have determined a specific molecular mechanism that Helicobacter pylori (H. pylori) uses to adapt to growing in the human stomach for long periods of time. Reporting their findings, ‘A bacterial small RNA regulates the adaptation of Helicobacter pylori to the host environment’, in Nature Communications, they found that a small RNA molecule called, HPnc4160, plays a key role in how H. pylori invades the stomach and leads to disease.

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Cancer cells

Genetic drug target for treatment resistant colorectal cancer

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1 year ago By Owen

Researchers from the Wellcome Sanger Institute, in collaboration with the Candiolo Cancer Institute in Italy and the Netherlands Cancer Institute, have used state-of-the-art patient derived organoid models to gather information about Werner Helicase (WRN), in cancers that had become resistant to standard treatment.

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Colorectal cancer

Early-onset colorectal cancer patients have increased survival

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1 year ago By Owen

Research by Yale Cancer Center shows patients with early-onset colorectal cancer, age 50 and younger, have a better survival rate than patients diagnosed with the disease later in life, according to a study presented virtually at the American Association of Cancer Research (AACR) annual meeting.

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The GI Genius intelligent endoscopy module works in real-time, automatically identifying and marking (with a green box) abnormalities consistent with colorectal polyps, including small flat polyps.

Medtronic launches GI Genius artificial intelligence system for colonoscopy

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1 year ago By Owen

Medtronic has announced that the FDA has granted de novo clearance for GI Genius intelligent endoscopy module, the first and only commercially available computer-aided detection (CADe) system using artificial intelligence (AI) to identify colorectal polyps. The module, compatible with any colonoscope video, provides physicians with a powerful new solution in the fight against colorectal cancer, the third most common form of cancer globally with 1.8 million new cases in 2018.1

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Mark Sundrud (Credit: Scott Wiseman for Scripps Research)

Crohn's disease associated with immune signalling failure

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1 year ago By Owen

People with Crohn's disease are typically treated with powerful anti-inflammatory medications that act throughout their body, not just in their digestive tract, creating the potential for unintended, and often serious, side effects. Certain immune cells in the small intestine have evolved a molecular sensing mechanism to protect themselves from the toxic effects of high bile acid concentrations there, this sensory mechanism can be manipulated with small drug-like molecules, and the treatment was found to reduce small bowel inflammation in mice.

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IV contrast-enhanced 2-mSv 4-mm-thick transverse and coronal (b) CT images show inflamed diverticula (arrows), segmental colonic wall thickening, and adjacent pericolic fat stranding. Credit: American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

RCT finds CT for right colonic diverticulitis alternate diagnosis of appendicitis

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1 year ago By Owen

IV contrast-enhanced 2-millisievert CT (2-mSv CT) is comparable to conventional-dose CT (CDCT) for the diagnosis of right colonic diverticulitis, according to the outcomes from a randomised controlled trial data including more than 3,000 patients.

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Genetics

DNA mutations could impact bowel cancer survival

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1 year ago By Owen

Mitochondrial DNA mutations in colorectal tumours increases the chances of survival for patients, according to a study funded by Cancer Research UK. Scientists reporting their findings in a paper in Nature Metabolism. ‘Respiratory complex and tissue lineage drive recurrent mutations in tumour mtDNA’, found that patients with colorectal cancer had a 57 to 93% decreased risk of death from their cancer, depending on the presence and type of mitochondrial DNA mutations in their tumours.

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Chron's disease

Adherent-invasive E-coli possible trigger for Crohn's disease

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1 year ago By Owen

Researchers at McMaster University have identified a strain of adherent-invasive E-coli (AIEC) that is strongly implicated in the condition and is often found in the intestines of people with Crohn's disease. By mutating every gene in a particular strain of AIEC and testing how those mutants grow in mice, the researchers were able to pinpoint which genes allowed the bacteria to freely colonize the gut linings of people with Crohn's disease.

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A cloacal malformation is a rare type of anorectal malformation that occurs when a female fetus’s rectum, vagina, and urologic structures form into one common channel. Credit: Children's Hospital Boston

Laparoscopic repair of cloacal malformation repair safe in eligible patients

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1 year ago By Owen

Laparoscopic rectal mobilisation and urogenital separation appears to be a safe alternative to open surgery in eligible patients with cloacal malformations, according to the outcomes from a study by the team in the Colorectal and Pelvic Malformation Center at Boston Children's Hospital. The findings were featured in the paper, ‘A New Approach to Cloaca: Laparoscopic Separation of the Urogenital Sinus’, published in the Journal of Laparoendoscopic & Advanced Surgical Techniques.

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aspirin

Aspirin helps prevent CRC by inhibiting platelet activation and metastases

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1 year ago By Owen

Researchers have discovered that aspirin prevents blood platelets from producing an enzyme that allows them to clump together and regular, long-term use of low-dose aspirin may reduce the risk of death from colon and rectal cancers. Tumour cells can attach to these clumps and spread (metastasize) throughout the body. The findings were recently published in the Journal of the National Cancer Institute.

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ulcerative colitis

Targeted NFEPP opioid stops colitis pain without side effects

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1 year ago By Owen

A targeted opioid that only treats diseased tissues and spares healthy tissues relieves pain from inflammatory bowel disease without causing side effects, according to researchers at New York University College of Dentistry and Queen's University in Ontario. The paper, ‘Agonist that activates the µ-opioid receptor in acidified microenvironments inhibits colitis pain without side effects’, published in the journal Gut, was conducted in mice with colitis, an inflammatory bowel disease marked by inflammation of the large intestine.

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EZ Glide, activated by water or saline, improves endoscopic performance of the DiLumen Endoluminal Interventional Platform (EIPTM).

Lumendi launches EZ Glide Hydrophilic Coating for its DiLumen Endoluminal Interventional Platform

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1 year ago By Owen

Lumendi has launched EZ Glide, a proprietary hydrophilic coating applied to the inner sheath of its DiLumen EIP, a double-balloon endoluminal device that aims to safely improve the navigation of the endoscope through the bowel, create a stabilising therapeutic zone inside the colon during endoluminal interventions, and help minimise potential mucosal injury.

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The pGENMi model was used to integrate data obtained from multiple studies to identify signaling pathways that were subsequently demonstrated to be relevant to metastasis-associated processes (upper right) and that show prognostic potential in colon cancer survival (bottom right). Credit: Steven Offer

pGENMi model used to better understand aggressive colon cancer tumours

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1 year ago By Owen

Researchers at the University of Illinois Urbana-Champaign have developed a new modelling approach, the pGENMi model, to better understand how tumours become aggressive. The researchers pooled the data from their own experiments as well as publicly available data to develop the model, which was based on a simpler 2018 model that investigated regulators of cancer drug resistance.

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Colorectal cancer

SOS: No increase in colorectal cancer after bariatric surgery

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1 year ago By Owen

The latest outcomes from the Swedish Obese Subjects have reported that the risk from colorectal cancer does not rise after bariatric surgery, according to a study by researchers from the University of Gothenburg, Sweden. This finding is important for patients with obesity, and their healthcare professionals, when deciding upon such an operation, the authors noted.

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Figure 1: (From left) Ultrasound images, photoacoustic microscopy (PAM)/US images, and representative hematoxylin–eosin (H&E) stain of the tumour bed. Panel C: treated tumour bed with residual cancer; Panel E, treated tumour bed with no residual cancer. (Credit: Zhu lab)

Imaging technique differentiates rectal tissues with residual cancers and those without tumours

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1 year ago By Owen

A multi-disciplinary team at Washington University in St Louis has developed and tested an innovative imaging technique that is able to differentiate between rectal tissues with residual cancers and those without tumours after chemotherapy and radiation, which could one day help to avoid unnecessary surgeries in some patients who have achieved complete tumour destruction after chemoradiation.

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Highly processed foods

Consumption of ultra-processed foods and drinks and CRC risk

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1 year ago By Owen

Consumption of ultra-processed foods and drink could increase the risk of developing colorectal cancer, according to researchers at the Barcelona Institute for Global Health (ISGlobal), a centre supported by the "la Caixa" Foundation. The findings, based on questionnaires about food behaviours completed by around 8,000 people in Spain, were reported in the paper, ‘Consumption of ultra-processed foods and drinks and colorectal, breast, and prostate cancer’, published in Clinical Nutrition.

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Endoscopy

England faces backlog of half-million endoscopies and rising

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1 year ago By Owen

A backlog of nearly half a million endoscopy procedures, essential for diagnosing gastrointestinal cancers and diseases, has built up during the COVID-19 pandemic, according to an analysis of NHS England data led by University College London researchers. The outcomes were featured in the paper, ‘Predicting endoscopic activity recovery in England after COVID-19: a national analysis’, published in The Lancet Gastroenterology & Hepatology, show the number of endoscopies being performed in April 2020, the month following the first lockdown, fell by over 90%.

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Rubber band ligation

Rubber band ligation vs haemorrhoidectomy – more evidence required

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1 year ago By Owen

A systematic review comparing clinical outcome of haemorrhoidectomy and rubber band ligation in grade II–III haemorrhoids has reported that haemorrhoidectomy seems to provide better symptom control but results in more pain and complications. Moreover, the study researchers from The Netherlands, Denmark and Norway, claim that because of the poor quality of the studies available they were unable to determine which procedure results in the best treatment for grade II–III haemorrhoids.

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scales

Maintaining body weight does not benefit CRC survivors

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1 year ago By Owen

Colorectal cancer survivors who maintained a stable body weight but lost muscle and developed fatty deposits in their muscles faced a 40 percent higher risk of premature death than patients who avoided both health issues, according to a study by researchers from Pennington Biomedical Research Center.

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Cancer cells

Novel pathogens may cause the development of colorectal cancer

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1 year ago By Owen

Researchers led by Harald zur Hausen from the German Cancer Research Center (DKFZ) have detected the pathogens in colorectal cancer patients in close proximity to tumours. The researchers show that the Bovine meat and milk factors (BMMFs) - novel infectious agents found in dairy products and bovine sera - trigger local chronic inflammation, which can cause mutations via activated oxygen molecules and thus promote cancer development in the long term.

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Pickhardt and colleagues' results showed that CRC prevention via screen detection of AN was highest with CTC, followed by mt- sDNA, and lowest with FIT due to the differing TPR and PPV, although overlap existed in the 95% CIs when accounting for uncertainty. Compared with mt-sDNA and CTC6, FIT and CTC10 strategies yielded substantially lower colonoscopy resource utilization, while mt-sDNA performance appeared to be similar to FIT at low positivity thresholds. Credit: American Roentgen Ray Society (ARRS), Am

CT colonography most effective non-invasive screening test for CRC

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1 year ago By Owen

CT colonography (CTC) with 10mm threshold most effectively targets advanced neoplasia (AN) preserving detection while decreasing unnecessary colonoscopies, compared with Multi-target stool-DNA (mt-sDNA) and faecal immunochemical tests (FIT).

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Cleveland Clinic-led research team found that levels of the yeast D. hansenii are higher in Crohn's disease patients, particularly abundant within chronically inflamed regions of the colon and small intestine, indicative of unhealed intestinal wounds. Credit: Cleveland Clinic

Crohn's disease: Foodborne fungus impairs intestinal healing

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1 year ago By Owen

Naturally occurring toxins in food and potentially harmful foodborne microbes can damage our intestines, leading to repeated minor injuries. In healthy people, such damage typically heals in a day or two, however, in people with Crohn's disease the wounds can fester causing abdominal pain, bleeding, diarrhoea and other unpleasant symptoms.

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Cancer cells

Immunotherapy could boost radiotherapy response for bowel cancers

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1 year ago By Owen

Cancers that are resistant to radiotherapy could be rendered susceptible through treatment with immunotherapy and manipulating bowel cancers based on their "immune landscape" could unlock new ways to treat resistant tumours.

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A, Optical colonoscopy and, B-D, CT colonography of a 9-mm polyp (arrow) in the descending colon of a 78-year-old woman. B, Virtual fly-through three-dimensional reconstructions were used for exact polyp localization. C, Manual polyp segmentation was performed in multiplanar two-dimensional CT colonography images. D, CT colonography images were preprocessed for image feature extraction by application of a dedicated filter. (Credit: Radiological Society of North America)

Machine learning algorithm identifies precancerous colon polyps

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1 year ago By Owen

A machine learning algorithm helps accurately differentiate benign and premalignant colorectal polyps on CT colonography scans, according to researchers from the University Hospital, Ludwig Maximilian University of Munich, Munich Germany. The findings were reported in the paper, ‘Machine Learning–based Differentiation of Benign and Premalignant Colorectal Polyps Detected with CT Colonography in an Asymptomatic Screening Population: A Proof-of-Concept Study’, published in the journal Radiology.

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High magnification micrograph of Crohn's disease. Biopsy of esophagus. H&E stain. (Credit: Nephron/Wikipedia)

Nanotherapy is a potential therapy for Crohn's disease in children

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1 year ago By Owen

Scientists from the Stanley Manne Children's Research Institute at Ann & Robert H Lurie Children's Hospital of Chicago have reported that a nanotherapy reduces intestinal inflammation and shrinks lesions in a rodent model of severe Crohn's disease. This approach could become an alternative to biologic antibody therapies that carry many side effects, including increased risk of certain cancers and might also prevent the need for surgery in the future.

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Cancer cells

Genotoxin colibactin induces genetic changes leading to development of CRC cells

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1 year ago By Owen

Researchers from the Max Planck Institute for Infection Biology in Berlin have reported that the genotoxin colibactin induces genetic changes that are characteristic of colorectal cancer cells and cause a transformed phenotype after only a few hours of infection. The findings were featured in the paper, ‘Genomic aberrations after short-term exposure to colibactin-producing E. coli transform primary colon epithelial cells’, published in Nature Communications.

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Nadja Pejovic, a visiting medical student and co-first author of a study on the liquid biopsy, works with a sample in the lab of Dr Aadel Chaudhuri, the study's senior author. (Credit Peter Harris)

Liquid biopsy could guide therapy for CRC tumours

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1 year ago By Owen

Washington University School of Medicine researchers have reported that a liquid biopsy examining blood or urine can help gauge the effectiveness of therapy for colorectal cancer (CRC) that has just begun to spread beyond the original tumour. Such a biopsy can detect lingering disease and could serve as a guide for deciding whether a patient should undergo further treatments due to some tumour cells evading an initial attempt to eradicate the cancer.

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Smectite microspheres specifically support the typical probiotics, L. acidophilus and B. longum to form biofilms on the surface. (Credit: Lei Dong, Nanjing University)

Probiotic biofilm formation in gut for cancer immunotherapy

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1 year ago By Owen

Scientists from Nanjing University and the University of Macau have devised a new approach to extend the survival of transplanted probiotics in vivo, enhancing the efficacy of cancer chemo-/immunotherapies in mice. The approach was outlined in the paper, ‘Smectite promotes probiotic biofilm formation in the gut for cancer immunotherapy’, published in Cell Reports.

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Cancer cells

Take-at-home FIT boosts colorectal cancer screening tenfold

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1 year ago By Owen

Colorectal cancer screening rates jumped by more than 1,000 percent when researchers sent take-at-home tests to patients overdue for testing at a community health centre that predominantly serves ethnic minorities. Instead of the oft-standard text message that simply reminds a patient that they are overdue for screening, researchers from the Perelman School of Medicine at the University of Pennsylvania made it the default to send a take-at-home test to the patient's home unless they opted out via a text message prompt.

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Drugs

Risankizumab shows significant improvements in patients with Crohn's Disease

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1 year ago By Owen

AbbVie has announced positive results from two Phase 3 induction studies, ADVANCE and MOTIVATE, showing both doses of risankizumab (600mg and 1200mg) met both primary endpoints of clinical remission and endoscopic response at week 12 in adult patients with moderate to severe Crohn's disease. The ADVANCE study enrolled patients who had an inadequate response or were intolerant to conventional and/or biologic therapy. The MOTIVATE study evaluated patients who had responded inadequately or were intolerant to biologic therapy.

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Drugs

Positive results for BT-11 drug for ulcerative colitis

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1 year ago By Owen

Landos Biopharma has announced positive results from a first-in-patients 12-week Phase 2 proof-of-concept trial of BT-11, a novel, orally administered, gut-restricted Lanthionine Synthetase C-Like 2 (LANCL2) modulator in patients with mild to moderate ulcerative colitis (UC).

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Mutations

Technique identifies important mutations behind Lynch syndrome

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1 year ago By Owen

Researchers from the Department of Human Genetics at Michigan Medicine, and a team of collaborators have reported a method for screening so-called genetic variants of uncertain significance in the hopes of identifying those mutations that could cause colorectal cancer. The findings were featured in the paper, ‘Massively parallel functional testing of MSH2 missense variants conferring Lynch syndrome risk’, published in The American Journal of Human Genetics

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ulcerative colitis

Ulcerative colitis surgery may create new target for disease

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1 year ago By Owen

A surgical procedure meant to counter ulcerative colitis, may trigger a second immune system attack, a study by researchers at NYU Grossman School of Medicine has reported. Colon tissue damaged by the disease is routinely addressed with a "J-pouch" procedure wherein a pouch is surgically constructed from nearby, healthy small intestine tissue to replace the damaged section of the colon.

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Samir Gupta (Credit: Christopher Menzie)

Delaying colonoscopy after abnormal stool test increases risk of CRC

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1 year ago By Owen

A Veterans Affairs study has reported  that delays in undergoing colonoscopy following an abnormal stool test increase the risk of a colorectal cancer (CRC) diagnosis and cancer-related death. In a retrospective study of more than 200,000 Veterans, the researchers found that patients who received colonoscopy more than 13 months after an abnormal stool blood test were up to 1.3 times more likely to have CRC, compared with those who had colonoscopy up to three months after the stool test.

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Colorectal cancer

Potential therapeutic targets to inhibit colorectal cancer progression

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1 year ago By Owen

Nagoya University researchers have revealed that colorectal cancer tissues contain at least two types of fibroblasts (a type of cells found in connective tissue), namely, cancer-promoting fibroblasts and cancer-restraining fibroblasts, and that the balance between them is largely involved in the progression of colorectal cancer.

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aspirin

Taking aspirin before the age of 70 lowers CRC risk

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1 year ago By Owen

There is substantial evidence that a daily aspirin can reduce risk of colorectal cancer (CRC) in adults up to age 70, but until now there was little evidence about whether older adults should start taking aspirin. Researchers led by Dr Andrew T Chan, a gastroenterologist and chief of the Clinical and Translational Epidemiology Unit at Massachusetts General Hospital (MGH), have found that taking aspirin before the age of 70 lowers CRC risk.

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Surgery

Study predicts huge rise in cancer surgery procedures

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1 year ago By Owen

Demand for cancer surgery is expected to increase from 9.1 million to 13.8 million procedures over the next twenty years, requiring a huge increase in the workforce including nearly 200,000 additional surgeons and 87,000 anaesthetists globally, according to two studies, published in The Lancet and The Lancet Oncology. The studies caution that as access to post-operative care is strongly linked to lower mortality, improving care systems worldwide must be a priority in order to reduce disproportionate number of deaths following complications.

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(Credit: Obesity Action Coalition)

Colon discovery explains racial disparities in colorectal cancer

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1 year ago By Owen

The colons of African-Americans and people of European descent age differently, according to research that helps to explain racial disparities in colorectal cancer. Scientists led by UVA Health's Dr  Li Li, Graham Casey and Matt Devall of the Center for Public Health Genomics, found that one side of the colon ages biologically faster than the other in both African-Americans and people of European descent.

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Faecal immunochemical test (FIT)

Faecal immunochemical test can help save lives from CRC

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1 year ago By Owen

A faecal immunochemical test (FIT) can help identify who is at risk of developing colorectal cancer, aiding early diagnosis and potentially saving lives, according to a study led by the University of Exeter, and supported by the Peninsula and the Somerset, Wiltshire, Avon, and Gloucestershire Cancer Alliances, and by the Cancer Research UK CanTest Collaborative.

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Colorectal cancer screening

Dangerous disparities for life-saving cancer screening

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1 year ago By Owen

More than a third of eligible people miss timely screening tests for colorectal cancer and at least a quarter appear to miss timely screening tests for breast and cervical cancers, according to a researcher from the University of Alberta, Faculty of Medicine and Dentistry in Alberta, Canada.

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Internet

Cancer patients benefit from using computer algorithms

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1 year ago By Owen

Hundreds of cancer patients have benefitted from using computer algorithms to manage their symptoms and improve their wellbeing in a unique UK trial. The early stage colorectal, breast or gynaecological cancer patients took part in the trial of the eRAPID system, developed by the University of Leeds, which allowed them to report online symptoms from home and receive instant advice on whether to self-manage or seek medical attention.

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ulcerative colitis

Novel disease model to identify potential targets for ulcerative colitis drugs

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1 year ago By Owen

Researchers from Cleveland Clinic's Lerner Research Institute have developed a novel, patient-derived model of ulcerative colitis, which will help advance studies into new treatments for the chronic inflammatory bowel disease. The team used the model to identify a promising target that could be inhibited to slow disease progression. The outcomes from the model were reported in the paper, ‘Induced organoids derived from patients with ulcerative colitis recapitulate colitic reactivity’, published in Nature Communications.

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COVID-19

Gut dysfunction may exacerbate the severity of COVID

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1 year ago By Owen

A sizeable fraction of patients COVID-19 hospitalised with breathing problems also have diarrhoea, nausea and vomiting, suggesting that when the virus does get involved in the gastrointestinal tract  (GI) tract it increases the severity of the disease.

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Cancer cells

CRC cells hibernate to evade harsh chemotherapy

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1 year ago By Owen

Colorectal cancer cells enter into a sluggish, slow-dividing state to survive the harsh environment created by chemotherapy or other targeted agents, according to researchers from the Princess Margaret Cancer Centre at the University Health Network and the University of Toronto. Dr Catherine O'Brien and colleagues discovered that when under threat, all cancer cells rather than just a subset have the ability to transition into this protective state, where the cells ‘rest’ until the threat, or chemotherapy, is removed.

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X-Tack Endoscopic HeliX Tacking System

FDA clears Apollo Endosurgery’s X-Tack Endoscopic HeliX Tacking System

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1 year ago By Owen

Apollo Endosurgery has gained FDA 510k clearance of the X-Tack Endoscopic HeliX Tacking System, a new, through-the-scope, suture-based device designed specifically for closing and healing defects in the lower gastrointestinal tract with additional applications in the upper gastrointestinal tract.

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Chemotherapy

Triple chemotherapy improves metastatic colorectal cancer outcomes

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1 year ago By Owen

Researchers from SWOG Cancer Research Network, a cancer clinical trials group funded by the National Cancer Institute (NCI), part of the National Institutes of Health, have shown that a triple drug combination - of irinotecan, cetuximab and vemurafenib - is a more powerful tumour fighter and keeps people with metastatic colon cancer disease free for a significantly longer period of time, compared with patients treated with irinotecan and cetuximab.

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FISABIO researchers (Credit: FISABIO)

Association between colon cancer and a low level of gamma delta T cells

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1 year ago By Owen

A research group of the Foundation for the Promotion of Health and Biomedical Research of Valencia Region (FISABIO) and the Hospital Arnau de Vilanova has released a pioneering study, which for the first time links the development and progression of colon cancer with a low level of lymphocytes known as gamma delta T cells. The findings were featured in the paper, ' Differences in circulating γδ T cells in patients with primary colon cancer and relation with prognostic factors', published in Plos One.

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NIR intensities were extracted by tracking ROIs within each video, focusing on the initial ICG wash-in period of 100–300s (Credit: UCD Research and Innovation)

AI used to enhance decision making during CRC surgery

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1 year ago By Owen

Fluorescence guidance can enable a colorectal surgeon to assess cancer tissues visually and with more specificity in real-time during surgery, by using near-infrared (NIR) light from an administered fluorophore in conjunction with artificial intelligence (AI) methods, according to research lead by Professor Ronan Cahill, professor of surgery at University College Dublin (UCD) and the Mater Misericordiae University Hospital, Ireland.

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Cancer cells

Obesity increases different colorectal cancer risks for men and women

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1 year ago By Owen

A higher body mass index (BMI) increases the risk of cancer for men and a higher waist-to-hip ratio increases the risk for women, according to a study of over 100,000 people led by researchers at the University of Bristol and the International Agency for Research on Cancer.

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Colorectal system

NOX1 enzyme releases hydrogen peroxide keeps gut bacteria away from the colon lining

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1 year ago By Owen

Scientists at UC Davis Health have discovered that an enzyme in the colon lining releases hydrogen peroxide (H2O2) - a known disinfecting compound - to protect the body from gut microbes. Their study, ‘Anaerobic Respiration of NOX1-Derived Hydrogen Peroxide Licenses Bacterial Growth at the Colonic Surface’, published in the journal Cell Host and Microbe, sheds light on the way microorganisms are spatially organized in the colon. It also calls for a new approach to treating gut inflammation.

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Stomach pain

Bilayered CDC delivery system aids irritable bowel syndrome with constipation

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1 year ago By Owen

Researchers at Brigham and Women's Hospital and the Massachusetts Institute of Technology (MIT) devised a plan to deliver chenodeoxycholic acid (CDC) in a bilayered capsule, after discovering that this mode of delivery could decrease colon cramping and thus produce helping patients suffering from irritable bowel syndrome with constipation (IBS-C). In preclinical studies, the team found evidence that this bilayered delivery system has the potential to reduce cramping and provide constipation relief.

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Colorectal cancer

People with MS may not be at higher risk of colorectal cancers

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1 year ago By Owen

People with multiple sclerosis (MS) may not be at higher risk of developing two of the three cancers that occur most commonly in people with MS, breast and colorectal cancer, than people who do not have the disease, according to a study published in Neurology, the medical journal of the American Academy of Neurology. However, the study did find that people with MS had a higher incidence of bladder cancer.

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Vitamin D

Vitamin D regulates calcium in distal segments of the intestine

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1 year ago By Owen

Researchers at Rutgers New Jersey Medical School have reported Vitamin D regulates calcium in a section of the intestine that previously was thought not to have played a key role. The findings have important implications on how bowel disease, including ulcerative colitis and Crohn's disease, may disrupt calcium regulation.

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Killer T cells surround a cancer cell (Credit: NIH)

Oncolytic virus CF33 activates immune system against CRC

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1 year ago By Owen

A cancer-killing virus that City of Hope scientists developed could one day improve the immune system's ability to eradicate tumours in colon cancer patients, according to a study in Molecular Cancer Therapeutics, a journal of the American Association for Cancer Research.

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Credit: Ohio State University Medical Center

Therapeutic PD-1 cancer vaccine shown to be safe and effective in CRC animal study

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1 year ago By Owen

A study led by researchers at The Ohio State University (OSU) Comprehensive Cancer Center, Arthur G James Cancer Hospital and Richard J Solove Research Institute (OSUCCC—James) have described a potential therapeutic anticancer vaccine that frees suppressed cancer-killing immune cells, enabling them to attack and destroy a tumour.

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Stomach pain

Researchers identify specific gut bacteria linked to IBS

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1 year ago By Owen

Researchers at the University of Gothenburg have detected a connection between Brachyspira, a genus of bacteria in the intestines, and irritable bowel syndrome (IBS) especially the form that causes diarrhoea. Although the discovery needs confirmation in larger studies, there is hope that it might lead to new remedies for many people with irritable bowel syndrome.

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genetics

Gene therapy to target the spread of bowel cancer

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1 year ago By Owen

For the first time, SAHMRI and University of Adelaide researchers are investigating gene therapy as an option to help people with metastatic bowel cancer. Like most cancers, bowel cancer is surrounded by many normal cells that are corrupted to support cancer growth. Dr. Susan Woods, A/Prof Daniel Worthley and their team have been studying why some of these supportive cells (fibroblasts) assist cancer growth, while others actively work to stop it.

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USA Flag

Location impacts CRC mortality rates among young women in US

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1 year ago By Owen

Women diagnosed with early-onset colorectal cancer have a greater risk of dying from the disease depending upon their county of residence in the US, according to a study, ‘Community Health Behaviors and Geographic Variation in Early-Onset Colorectal Cancer Survival Among Women’, published in Clinical and Translational Gastroenterology.

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Colorectal cancer screening

Medicaid expansion aids earlier diagnosis of CRC

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1 year ago By Owen

The Affordable Care Act's Medicaid expansion for low-income people appears to lead to earlier diagnosis of colorectal cancer (CRC), enhanced access to care, and improved surgical care for patients with this common cancer, researchers report in a study published on the Journal of the American College of Surgeons website in advance of print.

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Vitamin D

Vitamin D may reduce risk of developing advanced cancer

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1 year ago By Owen

A secondary analysis of the Vitamin D and Omega-3 Trial (VITAL), which concluded in 2018, has narrowed in on the connection between taking vitamin D supplements and risk of metastatic or fatal cancer, according to a team led by investigators at Brigham and Women's Hospital. The original analysis found that vitamin D did not reduce overall incidence of cancer, but hinted at a decreased risk of cancer deaths.

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Drugs

fruquintinib assessed in phase 3 trials for metastatic CRC

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1 year ago By Owen

fruquintinib therapy for metastatic colorectal cancer (CRC), granted fast-track designation by the FDA in June 2020, is being assessed in a phase 3 clinical trial at Vanderbilt-Ingram Cancer Center.

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Cannabidiol oils

Little evidence cannabidiol oils inhibit certain CRC cell lines

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1 year ago By Owen

Cannabidiol (CBD) oils are equally or less effective at inhibiting the growth of certain cancer cells, including colorectal cancer cells, compared to pure CBD, according to Penn State College of Medicine researchers. The results of their study indicate that future research into the clinical applications of cannabinoids should include an analysis of whether the pure cannabinoid compound or intact plant material is more effective at achieving the therapeutic effect.

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Colorectal cancer

Predicting advanced colorectal neoplasia risk among average risk persons

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1 year ago By Owen

Regenstrief Institute and Indiana University School of Medicine research scientists have developed and tested one of the first US-based models to predict personal risk for advanced colorectal neoplasia (AN) in average risk individuals. They found that among average-risk persons, this model estimates AN risk with high discrimination, identifying a lower risk subgroup that may be screened non-invasively and a higher risk subgroup for which colonoscopy may be preferred.

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Colorectal screening

Medicaid expansion linked to lower mortality rates of CRC

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1 year ago By Owen

States that have expanded Medicaid availability as part of the Affordable Care Act (ACA), mortality rates for three major forms of cancer, including colorectal cancer (CRC) are significantly lower than in states that have not expanded their Medicaid, according to a study by researchers at Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard University shows.

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inflammatory bowel diseases

ACE2 enzyme influences gut inflammation and IBD

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1 year ago By Owen

An enzyme that helps COVID-19 infect the body also plays a role in inflammation and patient outcomes in inflammatory bowel disease (IBD), according to a study led by Cedars-Sinai. The findings raise the possibility that anti-inflammatory drug therapies for IBD may aid recovery from coronavirus.

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Killer T cells surround a cancer cell (Credit: NIH)

Common protein could lead to novel cancer treatments

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1 year ago By Owen

A University of Colorado Boulder-led study has reported how a protein controls how cells grow, proliferate and function and long implicated in tumour development. The findings, ‘Selective inhibition of CDK7 reveals high-confidence targets and new models for TFIIH function in transcription, Genes & Development’, published in the journal Genes and Development, could lead not only to new therapies for hard-to-treat cancers, but also inform novel treatments for neurological diseases and rare developmental disorders, the study’s authors claim.

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When an open theragripper, left, is exposed to internal body temperatures, it closes on the instestinal wall. In the gripper’s center is a space for a small dose of a drug (Credit: Johns Hopkins University)

Theragripper microdevices can deliver intestinal medicine

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1 year ago By Owen

Johns Hopkins researchers have designed tiny, star-shaped microdevices that can latch onto intestinal mucosa and release drugs into the body. Dr David Gracias, a professor in the Johns Hopkins University Whiting School of Engineering, and Johns Hopkins gastroenterologist, Mr Florin M Selaru, director of the Johns Hopkins Inflammatory Bowel Disease Center, led a team of researchers and biomedical engineers that designed and tested shape-changing microdevices that mimic the way the parasitic hookworm affixes itself to an organism's intestines.

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Colorectal surgery

Cancer treatment delay of one month raises risk of mortality by 10%

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1 year ago By Owen

People whose treatment for cancer is delayed by even one month have in many cases a 6-13% higher risk of dying, a risk that keeps rising the longer their treatment does not begin, according to research led by the Queen's University in Kingston, Canada.

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Cancer cells

Patients with colorectal peritoneal metastasis may benefit from immunotherapy treatment

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1 year ago By Owen

A study from the University of Birmingham has found that 50% of patients with colorectal peritoneal metastasis (CPM), a rare type of cancer that has spread into the lining of their abdomen (peritoneal cavity), may be suitable for immunotherapy treatment.

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Pedunculated Adenoma and Sessile Adenoma (Credit: American Gastroenterological Association)

New management strategies for malignant colorectal polyps published

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1 year ago By Owen

The US Multisociety Task Force on Colorectal Cancer has released new guidance for endoscopists on how to assess colorectal lesions for features associated with cancer, discuss how these factors guide management, and outline when to advise surgery after malignant polyp removal. The recommendations, ‘Endoscopic Recognition and Management Strategies for Malignant Colorectal Polyps: Recommendations of the US Multi-Society Task Force on Colorectal Cancer’, were published in the journal Gastroenterology. T

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Incision-less Anastomosis System (Credit GI Windows)

GI Windows Medical’s magnetic anastomosis technology granted Breakthrough Device Designation by FDA

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1 year ago By Owen

GI Windows Medical’s self-forming magnetic compression anastomosis device indicated for small bowel end to end anastomosis for ileostomy reversal or tissue resection, has been granted Breakthrough Device Designation by the FDA.

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Cancer cells

Machine learning predicts anti-cancer drug efficacy for CRC patients

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1 year ago By Owen

A research team led by Professor Sanguk Kim in the Department of Life Sciences at POSTECH has successfully increased the accuracy of anti-cancer drug response predictions by using data closest to a real person's response. The team developed this machine learning technique through algorithms that learn the transcriptome information from artificial organoids derived from actual patients instead of animal models.

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Cancer cells

One in eight patients with cancer harbour inherited genetic mutations

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1 year ago By Owen

Researchers at Mayo Clinic's Center for Individualized Medicine conducted genetic testing in more than 3,000 patients who were diagnosed with cancer and discovered that one in eight patients with cancer had an inherited cancer-related gene mutation. This mutation would not have been detected in half of these patients using a standard guideline-based approach.

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A highly specialized cell, the fibroblastic reticular cell, coordinates immune responses to cancer cells. In this image, a single fibroblastic reticular cell is identified, by staining it: the cell nucleus (blue), markers that identify fibroblast cells (red), and a molecule that attracts immune cells (green). (Credit: CSHL, 2020)

Boosting the immune system could aid pancreatic and CRC cancer patients

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1 year ago By Owen

A team led by Cold Spring Harbor Laboratory scientists Tobias Janowitz and Douglas Fearon together with Duncan Jodrell at the Cancer Research UK Cambridge Institute and Centre, University of Cambridge, UK, have reported the outcomes of a clinical trial of the drug plerixafor that induces an integrated immune response in the tumours of patients with pancreatic and colorectal cancer types that do not usually respond to immunotherapy.

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Colorectal surgery

Low quantity and quality of muscle predicts poor outcomes in colon cancer surgery

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1 year ago By Owen

Low muscle quality and quantity are both predictive of poor outcomes in colon resection surgery, according to a study led by Professor Carla Prado, a researcher in the University of Alberta's Faculty of Agricultural, Life & Environmental Sciences.

According to the Canadian Cancer Society, in 2020, colorectal cancer is expected to be the second-leading cause of death from cancer in Canadian men and the third-leading cause of death from cancer in women. Surgery is often used to remove the cancer, and post-operative complications can affect a patient's quality of life.

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A 50-micron glass pipette is used to capture a single cancer cell, which is then deposited onto a matrix gel island to culture into a three-dimensional tumor. That tumor can be tested under laboratory conditions as an analog for the same tumor in a human body (Credit: Purdue University image/Rohil Jain)

3D cell culture technique could lead to personalised cancer therapies

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1 year ago By Owen

A new 3D cell culture technique developed by Purdue University researchers could make it possible to personalise treatment by understanding the contributions of different cell types in a tumour to the cancer's behaviour. The Purdue team is the first to demonstrate a 3D cell culture from individually selected cells. The technique is described in the paper, ‘Deterministic culturing of single cells in 3D’, Scientific Reports, would allow scientists to more accurately know the impact of each cell on a tumour’s formation and behaviour.

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inflammatory bowel diseases

Personalised programme for IBD reduces ER visits and hospitalisations

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1 year ago By Owen

A personalised program to increase resilience in patients with inflammatory bowel disease (IBD) can substantially reduce hospitalisations and emergency room visits, according to a study by Mount Sinai researchers presented at the annual scientific meeting of the American College of Gastroenterology (ACG 2020).

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Colorectal screening

Colon cancer tests should start at 45, claim US Task Force

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1 year ago By Owen

A panel of health experts from the US Preventive Services Task Force wants US adults to start getting colon cancer screenings at age 45, five years younger than it previously recommended. While overall, colon cancer rates have been declining, the draft guidelines issued the Task Force reflect a growing concern about rising rates in people under the age of 50. The task force is a volunteer panel of doctors that regularly reviews evidence and issues advice on medical tests and treatments.

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From left: Lynn Opdenaker, Brian Osmond, Bruce Boman,Chi Zhang, Victoria Hunsu and Caroline Facey (Credit: ChristianaCare)

Second key pathway discovered in colon cancer stem cell growth

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1 year ago By Owen

Scientists at ChristianaCare's Helen F Graham Cancer Center & Research Institute have discovered a link between two key signalling pathways crucial to the development and growth of colon cancer. The study, ‘APC mutations in human colon lead to decreased neuroendocrine maturation of ALDH+ stem cells that alters GLP-2 and SST feedback signaling: Clue to a link between WNT and retinoic acid signalling in colon cancer development’, was published in the journal PLOS ONE.

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Colons from control mice and mice treated with the sugars glucose and fructose, stained for the mucin protein Muc2 (red). (Credit: S Khan et al, Science Translational Medicine 2020)

High-sugar diet intensifies risk for colitis

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1 year ago By Owen

Mice fed diets high in sugar developed worse colitis and researchers examining their large intestines found more of the bacteria that can damage the gut's protective mucus layer, according to a study, ‘Dietary simple sugars alter microbial ecology in the gut and promote colitis in mice’, published in Science Translational Medicine.

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Watch-and-Wait Compared to Operation for Patients with Complete Response to Neoadjuvant Therapy for Rectal Cancer (Credit: American College of Surgeons)

Some rectal cancer patients can safely avoid an aggressive operation

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1 year ago By Owen

A non-surgical treatment option for rectal cancer that preserves quality of life is safe for carefully selected patients, according to a study comparing it with the standard operation. The study, ‘Watch-and-Wait Compared to Operation for Patients with Complete Response to Neoadjuvant Therapy for Rectal Cancer’, were published on the Journal of the American College of Surgeons’ website in advance of print publication and were presented at the American Society for Radiation Oncology (ASTRO) Annual Meeting.

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Figure depicting the mucus barrier (Credit: Val Altounian/AAAS)

The relationship between mucus and gut microbiome

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1 year ago By Owen

Researchers from Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK, have redefined how the so-called gut microbiome operates and how our bodies coexist with some of the 100 trillion bacteria that make it up. The findings, ‘Proximal colon–derived O-glycosylated mucus encapsulates and modulates the microbiota’, were published in the journal Science, and could lead to new therapies for inflammatory bowel disease and people who've had portions of their bowels removed due to conditions like colon cancer and ulcerative colitis.

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Food

Molecular link between diet and risk of cancer, especially CRC

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1 year ago By Owen

An international team of researchers has identified a direct molecular link between meat and dairy diets and the development of antibodies in the blood that increase the chances of developing cancer. This connection may explain the high incidence of cancer among those who consume large amounts of dairy products and red meat, similar to the link between high cholesterol and an increased risk of heart disease.

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Faecal immunochemical tests (FIT)

NICE FIT: Home cancer test demonstrates efficiency

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1 year ago By Owen

Findings from a large international research study has reported that using faecal immunochemical tests (FIT) are almost 100% accurate at ruling out bowel cancer in patients with suspicious symptoms. The outcomes were featured in the paper, ‘Faecal immunochemical test is superior to symptoms in predicting pathology in patients with suspected colorectal cancer symptoms referred on a 2WW pathway: a diagnostic accuracy study’, published in Gut.

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Colorectal screening

Calculation model could significantly improve colon cancer diagnosis

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1 year ago By Owen

Researchers from the Division of Gastroenterology and Hepatology, MedUni Vienna's Department of Medicine III, have found that a new, dynamic calculation model helps to improve the diagnosis of interval cancer (colorectal cancer that develops after a screening colonoscopy but before the scheduled follow-up colonoscopy), and also that the quality of endoscopy in Austria adheres to current guidelines. These cancers are probably more frequent than assumed, especially in high-risk patients who have been found to have an initially benign but advanced adenoma.

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Radiation therapy

ASTRO issues guideline on radiation therapy for locally advanced rectal cancer

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1 year ago By Owen

A new clinical guideline from the American Society for Radiation Oncology (ASTRO) provides guidance for physicians who use radiation therapy to treat patients with locally advanced rectal cancer. Recommendations outline indications and best practices for pelvic radiation treatments, as well as the integration of radiation with chemotherapy and surgery for stage II-III disease.

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Cancer cells

Biomarker that can appear before stomach cancer

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1 year ago By Owen

A promising new biomarker that appears in patients before stomach cancer develops may help with early detection of the disease and improve patient response to therapy, according to findings in a study led by University of Arizona Health Sciences researchers. The biomarker can be detected through a simple blood test, saving time and lowering costs. Currently, stomach cancer diagnosis requires endoscopic collection of stomach tissue through a biopsy procedure, and then analysis by pathology.

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(Credit: Obesity Action Coalition)

IBS: Asthma and food allergies during childhood associated with increased risk

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1 year ago By Owen

Asthma and food hypersensitivity at age 12 is associated with an increased risk of having irritable bowel syndrome (IBS) at 16, a study presented at UEG Week Virtual 2020. The research, conducted at the University of Gothenburg and the Karolinska Institute in Stockholm, Sweden, also showed that asthma, food hypersensitivity and eczema were all associated with an increased risk of concurrent IBS at 16 years.

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Mental health

Increase mental health support for young people with Crohn's and colitis

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1 year ago By Owen

Research has found that young people who experience severe Crohn's and colitis symptoms are more likely to experience poor mental health, and need extra support as a result, according to study researchers, Professor Pam Qualter from The University of Manchester and Professor Bernie Carter from Edge Hill University.

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Stomach pain

Abnormalities in laminin expression associated with Hirschsprung disease

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1 year ago By Owen

Researchers from Le Bonheur Children's Hospital and the University of Tennessee Health Science Center who are trying to determine the mechanisms underlying abnormal development of the enteric nervous system in Hirschsprung disease, have reported delineating interactions between migrating neural crest cells and the extracellular matrix in a model of Hirschsprung disease using a variety of in vitro and in vivo approaches.

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Segmented neutrophils (Credit: Mgiganteus https://creativecommons.org/licenses/by-sa/3.0/deed.en)

Bone marrow transplant cures rare form of inflammatory bowel disease