Gut Inflammation tagged posts

Western Diet may Increase Risk of Gut Inflammation, Infection

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 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. (Image: Ta-Chiang Liu)

Diet rich in sugar, fat damages immune cells in digestive tracts of mice. 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.

The study, in mice and peop...

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High-Fat Diet with Antibiotic use linked to Gut Inflammation

Image of changes in sections of the cecal mucosa based on combinations of low-fat diet (LFD), high-fat diet (HFD), with streptomycin (Strep) treatment
Image of changes in sections of the cecal mucosa based on combinations of low-fat diet (LFD), high-fat diet (HFD), with streptomycin (Strep) treatment

Combining Western diet and antibiotic use is a pre- IBD risk factor. UC Davis researchers have found that combining a Western-style high-fat diet with antibiotic use significantly increases the risk of developing pre-inflammatory bowel disease (pre-IBD). The study, published July 14 in Cell Host and Microbe, suggests that this combination shutsdown the mitochondria in cells of the colon lining, leading to gut inflammation.

Irritable bowel syndrome (IBS) affects approximately 11% of people worldwide. It is characterized by recurring episodes of abdominal pain, bloating and changes in bowel habits...

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Chemicals found in Vegetables Prevent Colon Cancer in Mice

This is a mouse colon from Cyp1a reporter mice after feeding with I3C. Credit: Chris Schiering, Francis Crick Institute

This is a mouse colon from Cyp1a reporter mice after feeding with I3C.
Credit: Chris Schiering, Francis Crick Institute

Chemicals produced by vegetables such as kale, cabbage and broccoli could help to maintain a healthy gut and prevent colon cancer, a new study from the Francis Crick Institute shows. The research, published in Immunity, shows that mice fed on a diet rich in indole-3-carbinol – which is produced when we digest vegetables from the Brassica genus – were protected from gut inflammation and colon cancer.

While the health benefits of vegetables are well-established, many of the mechanisms behind them remain unknown...

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Biologists Control Gut Inflammation by Altering the Abundance of Resident bacteria

 Proposed model of sox10 mutant intestinal pathology. sox10 mutants have altered intestinal motility and an increased bacterial load. Given the role of the ENS in intestinal function, sox10 mutants likely also experience alterations in epithelial secretion and permeability, although these phenotypes are yet to be examined. sox10 mutants can assemble a microbiota that mirrors WT intestinal microbiota (host population 2) or is dysbiotic (host population 1), characterized by an expansion of the Vibrio lineage and reduction of the Escherichia lineage. We do not yet know what determines which bacterial community assembles in sox10 mutants (dashed lines) but hypothesize that it could be due to the timing or order of exposure to bacterial strains, differences in epithelial permeability or secretion, or differences in other host compensatory mechanisms.

Proposed model of sox10 mutant intestinal pathology. sox10 mutants have altered intestinal motility and an increased bacterial load. Given the role of the ENS in intestinal function, sox10 mutants likely also experience alterations in epithelial secretion and permeability, although these phenotypes are yet to be examined. sox10 mutants can assemble a microbiota that mirrors WT intestinal microbiota (host population 2) or is dysbiotic (host population 1), characterized by an expansion of the Vibrio lineage and reduction of the Escherichia lineage...

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