Intestinal bacteria drive obesity and metabolic disease in immune-altered mice

Mice lacking a gene called TLR5 have an altered ability to recognize and control bacteria in their intestines, leading them to develop obesity and insulin resistance, which is often referred to as "pre-diabetes." The bacteria appear to influence appetite and metabolism rather than how well calories are absorbed. Obesity and insulin resistance can be transferred from TLR5-deficient mice via intestinal bacteria.

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