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Oral treatment with Eubacterium hallii improves insulin sensitivity in db/db mice.


ABSTRACT: An altered intestinal microbiota composition is associated with insulin resistance and type 2 diabetes mellitus. We previously identified increased intestinal levels of Eubacterium hallii, an anaerobic bacterium belonging to the butyrate-producing Lachnospiraceae family, in metabolic syndrome subjects who received a faecal transplant from a lean donor. To further assess the effects of E. hallii on insulin sensitivity, we orally treated obese and diabetic db/db mice with alive E. hallii and glycerol or heat-inactive E. hallii as control. Insulin tolerance tests and hyperinsulinemic-euglycemic clamp experiments revealed that alive E. hallii treatment improved insulin sensitivity compared control treatment. In addition, E. hallii treatment increased energy expenditure in db/db mice. Active E. hallii treatment was found to increase faecal butyrate concentrations and to modify bile acid metabolism compared with heat-inactivated controls. Our data suggest that E. hallii administration potentially alters the function of the intestinal microbiome and that microbial metabolites may contribute to the improved metabolic phenotype.

SUBMITTER: Udayappan S 

PROVIDER: S-EPMC5515273 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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An altered intestinal microbiota composition is associated with insulin resistance and type 2 diabetes mellitus. We previously identified increased intestinal levels of <i>Eubacterium hallii</i>, an anaerobic bacterium belonging to the butyrate-producing <i>Lachnospiraceae</i> family, in metabolic syndrome subjects who received a faecal transplant from a lean donor. To further assess the effects of <i>E. hallii</i> on insulin sensitivity, we orally treated obese and diabetic <i>db/db</i> mice wi  ...[more]

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2023-06-04 | MSV000092094 | MassIVE