期刊
DIABETES
卷 68, 期 7, 页码 1415-1426出版社
AMER DIABETES ASSOC
DOI: 10.2337/db18-1307
关键词
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资金
- NIH Office of the Director [F32-DK-105686, T32-DK-007494]
- National Institute of Diabetes and Digestive and Kidney Diseases [DK-033651, DK-063491, DK-074868, DK-101395, P30-NS-047101, 147807-101-DR02793-41200]
The composition of the gastrointestinal microbiota and associated metabolites changes dramatically with diet and the development of obesity. Although many correlations have been described, specific mechanistic links between these changes and glucose homeostasis remain to be defined. Here we show that blood and intestinal levels of the microbiota-produced N-formyl peptide, formyl-methionyl-leucyl-phenylalanine, are elevated in high-fat diet-induced obese mice. Genetic or pharmacological inhibition of the N-formyl peptide receptor Fpr1 leads to increased insulin levels and improved glucose tolerance, dependent upon glucagon-like peptide 1. Obese Fpr1 knockout mice also display an altered microbiome, exemplifying the dynamic relationship between host metabolism and microbiota. Overall, we describe a new mechanism by which the gut microbiota can modulate glucose metabolism, providing a potential approach for the treatment of metabolic disease.
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