Gastroenterology

P165 INFLUENCE OF THE GUT MICROBIOTA ON COLONIC HISTONE MODIFICATIONS THROUGH BUTYRATE METABOLISM UNDER HEALTHY AND INFLAMMATORY CONDITIONS



Inflammatory bowel disease (IBD) is often associated with a disruption in the composition and activity of the gut microbiota, referred to as dysbiosis. Since the microbiota has the potential to interact with host epithelial cells through small molecules generated from microbial metabolism, knowledge of how inflammation alters the microbial metabolome and how epithelial cells react is important for a better understanding of how IBD develops and persists. Butyrate, a short chain fatty acid produced through fermentation of dietary polysaccharides, has long been known to inhibit histone deacetylases (HDACs), which represent one of the many types of enzymes responsible for the epigenetic control of gene expression through the post-translational modification of histone proteins.

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