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Kreznar, Julia H.; Keller, Mark P.; Traeger, Lindsay L.; Rabaglia, Mary E.; Schueler, Kathryn L.; Stapleton, Donald S.; Zhao, Wen; Vivas, Eugenio I.; Yandell, Brian S.; Broman, Aimee Teo; Hagenbuch, Bruno; Attie, Alan D.; Rey, Federico E.
Cell reports (Cambridge), 02/2017, Letnik: 18, Številka: 7Journal Article
Genetic variation drives phenotypic diversity and influences the predisposition to metabolic disease. Here, we characterize the metabolic phenotypes of eight genetically distinct inbred mouse strains in response to a high-fat/high-sucrose diet. We found significant variation in diabetes-related phenotypes and gut microbiota composition among the different mouse strains in response to the dietary challenge and identified taxa associated with these traits. Follow-up microbiota transplant experiments showed that altering the composition of the gut microbiota modifies strain-specific susceptibility to diet-induced metabolic disease. Animals harboring microbial communities with enhanced capacity for processing dietary sugars and for generating hydrophobic bile acids showed increased susceptibility to metabolic disease. Notably, differences in glucose-stimulated insulin secretion between different mouse strains were partially recapitulated via gut microbiota transfer. Our results suggest that the gut microbiome contributes to the genetic and phenotypic diversity observed among mouse strains and provide a link between the gut microbiome and insulin secretion. Display omitted •Host genotype affects the abundance of taxa associated with metabolic disease•Gut microbiota affects susceptibility to diet-induced metabolic disease•The gut microbiome modulates insulin secretion Host genetics modulates the development of metabolic disease and shapes the composition of the gut microbiota. Kreznar et al. demonstrate that the gut microbiota contributes to strain-specific susceptibility to diet-induced metabolic disease and identify links between microbial metabolism and insulin secretion.
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