Özet:

Introduction: Obesity is a public health problem, being observed rapidly increasing prevalence. This diseases is associated with several comorbiditys such as metabolic syndrome, diabetes and cardiovascular disease. Additionally, recent studies have hypostatized that obesity can be related to alterations in the gut microbiome. On this sense, two major bacterial phyla: Firmicutes and Bacteroidetes found in the small and large intestine, have being studied. In fact, evidences have indicated thatimbalance in the proportions of these two populations may lead not only obesity butalso the insulin resistance. Objective: To analyze the interference Firmicutes and Bacteroidetes bacteria found in the gut with the weight gain and insulin resistance. Materials and methods: A literature review of articles from the databases and specific sites in the area of health, published since 2002. Literature review: We evaluated the relationship between intestinal microbiota with obesity and insulin resistance in rats and humans. Conclusion: The gut flora of the obese patient is different from the thin, both inhumans and mice and that this is related to obesity and insulin resistance. There are changes in the phyla Firmicutes and Bacteroidetes bacteria compared to obese and thin.

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