bacteroides thetaiotaomicron benefits

Bacteroides is the most numerous microbial genus found in the human ileum and large intestine, outnumbering Escherichia coli 100 to 1 (10, 24).The genus consists of anaerobic Gram-negative rods, including the important human symbiont Bacteroides thetaiotaomicron.B. Bacteroides vulgatus and B. dorei were confirmed to attenuate atherosclerosis through lowering the gut-derived LPS (Yoshida et al., 2018). Rendering the levels … The human gut-derived bacterium Bacteroides thetaiotaomicron forages on both host and dietary glycans. In this study, it is demonstrated that the human gut commensal species Bacteroides thetaiotaomicron efficiently metabolizes fructan exopolysaccharide (EPS) synthesized by probiotic Lactobacillus reuteri strain 121 while only partially degrading reuteran and isomalto/malto-polysaccharide (IMMP) α-glucan EPS polymers. Credit: Janet Iwasa, Broad Visualization Group, MIT Media Lab … Bacteroides spp are non-spore forming gram-negative bacilli that are part of the human resident flora.Microbiologically, they are distinguished from other genera by growth in 20% bile. This bacteria munches on yeast mannans, a complex carb found in beer and bread, says Bulsiewicz, and produces something called short-chain fatty acids, which help promote a healthy gut. However, we demonstrate that fructose, a common dietary additive in the Western world, decreases the abundance of a regulator of gut colonization in the human gut commensal Bacteroides thetaiotaomicron . Caption: Bacteroides thetaiotaomicron (white) living on mammalian cells in the gut (large pink cells coated in microvilli) and being activated by exogenously added compounds (small green dots) to express specific genes, such as those encoding light-generating luciferase proteins (glowing bacteria). thetaiotaomicron, Bacteroides dorei, and Bacteroides uniformis, which are enriched by GMD, are major con- tributors to the increased gut folate. thetaiotaomicron benefits its human host by metabolizing indigestible plant polysaccharides, promoting proper … This article describes infections caused by the Bacteroides fragilis group and other anaerobic gram-negative bacilli (AGNB) that were previously included in the Bacteroides genus but are now included in the Prevotella and Porphyromonas genera. Establishment of a model of Bacteroides thetaiotaomicronmono-associated rats stable as early as 2 days and up to 30 days after inoculation. A recent study of Bacteroides thetaiotaomicron PUL regulation during growth on mixtures of dietary glycans provides some insight into this response . MICROBIOLOGY. To understand how beneficial microbes establish a relationship with their hosts, it is crucial to determine what other abilities promote gut colonization. There’s also evidence that consumption of beer may increase levels of one particular bacterial strain called—wait for it—bacteroides thetaiotaomicron (phew.) Diet is known to alter the gut microbiota composition by supplying nutrients that promote the expansion of particular microorganisms. The work showed that there is a rapid response to the influx of new glycan sources, and that multiple PULs were simultaneously expressed to prioritize utilization of the most advantageous substrates. At present, the Bacteroides fragilis group consists of ten species: B. fragilis (the most frequent isolate), B. distasonis, B. thetaiotaomicron, B. vulgatus, B. ovatus, B. eggerrthii, B. B. thetaiotaomicron colonized the GIT of recipient germfree (GF) rats quickly and stably: the maximum count, 10 10 CFU/g of content, was attained with one day of inoculation and was maintained for at least 30 days … Microbial colonization of the mammalian gut is largely ascribed to the ability to utilize nutrients available in that environment. B. thetaiotaomicron was found to reduce diet-induced body-weight gain and downregulate the expression of genes involved in the lipogenesis (Liu et al., 2017).

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