Antibiotic perturbation of the murine gut microbiome enhances the adiposity, insulin resistance, and liver disease associated with high-fat diet

Douglas Mahana, Chad M. Trent, Zachary D. Kurtz, Nicholas A. Bokulich, Thomas Battaglia, Jennifer Chung, Christian L. Müller, Huilin Li, Richard Bonneau, Martin J. Blaser

Research output: Contribution to journalArticle

Abstract

Background: Obesity, type 2 diabetes, and non-alcoholic fatty liver disease (NAFLD) are serious health concerns, especially in Western populations. Antibiotic exposure and high-fat diet (HFD) are important and modifiable factors that may contribute to these diseases. Methods: To investigate the relationship of antibiotic exposure with microbiome perturbations in a murine model of growth promotion, C57BL/6 mice received lifelong sub-therapeutic antibiotic treatment (STAT), or not (control), and were fed HFD starting at 13weeks. To characterize microbiota changes caused by STAT, the V4 region of the 16S rRNA gene was examined from collected fecal samples and analyzed. Results: In this model, which included HFD, STAT mice developed increased weight and fat mass compared to controls. Although results in males and females were not identical, insulin resistance and NAFLD were more severe in the STAT mice. Fecal microbiota from STAT mice were distinct from controls. Compared with controls, STAT exposure led to early conserved diet-independent microbiota changes indicative of an immature microbial community. Key taxa were identified as STAT-specific and several were found to be predictive of disease. Inferred network models showed topological shifts concurrent with growth promotion and suggest the presence of keystone species. Conclusions: These studies form the basis for new models of type 2 diabetes and NAFLD that involve microbiome perturbation.

Original languageEnglish (US)
Article number48
JournalGenome Medicine
Volume8
Issue number1
DOIs
StatePublished - Apr 27 2016

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Adiposity
High Fat Diet
Insulin Resistance
Liver Diseases
Anti-Bacterial Agents
Microbiota
Type 2 Diabetes Mellitus
Therapeutics
Gastrointestinal Microbiome
Growth
Inbred C57BL Mouse
rRNA Genes
Obesity
Fats
Diet
Weights and Measures
Health

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics
  • Molecular Biology
  • Molecular Medicine

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Antibiotic perturbation of the murine gut microbiome enhances the adiposity, insulin resistance, and liver disease associated with high-fat diet. / Mahana, Douglas; Trent, Chad M.; Kurtz, Zachary D.; Bokulich, Nicholas A.; Battaglia, Thomas; Chung, Jennifer; Müller, Christian L.; Li, Huilin; Bonneau, Richard; Blaser, Martin J.

In: Genome Medicine, Vol. 8, No. 1, 48, 27.04.2016.

Research output: Contribution to journalArticle

Mahana, Douglas ; Trent, Chad M. ; Kurtz, Zachary D. ; Bokulich, Nicholas A. ; Battaglia, Thomas ; Chung, Jennifer ; Müller, Christian L. ; Li, Huilin ; Bonneau, Richard ; Blaser, Martin J. / Antibiotic perturbation of the murine gut microbiome enhances the adiposity, insulin resistance, and liver disease associated with high-fat diet. In: Genome Medicine. 2016 ; Vol. 8, No. 1.
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