Cited by 1,550Gut microbiota and healthAdipokines, Inflammation, and Metabolic DiseasesOral microbiology and periodontitis research

An increase in the Akkermansia spp. population induced by metformin treatment improves glucose homeostasis in diet-induced obese mice

Shin, Na-Ri, Lee, June-Chul, Lee, Hae-Youn, Kim, Min-Soo, Whon, Tae Woong, Lee, Myung-Shik, Bae, Jin-Woo·2014·Gut

Abstract

Background: Recent evidence indicates that the composition of the gut microbiota contributes to the development of metabolic disorders by affecting the physiology and metabolism of the host. Metformin is one of the most widely prescribed type 2 diabetes (T2D) therapeutic agents. Objective: To determine whether the antidiabetic effect of metformin is related to alterations of intestinal microbial composition. Design: C57BL/6 mice, fed either a normal-chow diet or a high-fat diet (HFD), were treated with metformin for 6 weeks. The effect of metformin on the composition of the gut microbiota was assessed by analysing 16S rRNA gene sequences with 454 pyrosequencing. Adipose tissue inflammation was examined by flow cytometric analysis of the immune cells present in visceral adipose tissue (VAT). Results: Metformin treatment significantly improved the glycaemic profile of HFD-fed mice. HFD-fed mice treated with metformin showed a higher abundance of the mucin-degrading bacterium Akkermansia than HFD-fed control mice. In addition, the number of mucin-producing goblet cells was significantly increased by metformin treatment (p<0.0001). Oral administration of Akkermansia muciniphila to HFD-fed mice without metformin significantly enhanced glucose tolerance and attenuated adipose tissue inflammation by inducing Foxp3 regulatory T cells (Tregs) in the VAT. Conclusions: Modulation of the gut microbiota (by an increase in the Akkermansia spp. population) may contribute to the antidiabetic effects of metformin, thereby providing a new mechanism for the therapeutic effect of metformin in patients with T2D. This suggests that pharmacological manipulation of the gut microbiota in favour of Akkermansia may be a potential treatment for T2D.

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Crossref · 10.1136/gutjnl-2012-303839

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Authors
Shin, N.-R., Lee, J.-C., Lee, H.-Y., Kim, M.-S., Whon, T. W., Lee, M.-S., & Bae, J.-W.
Affiliations
  • Kyung Hee University (KR)
  • Samsung Medical Center (KR)
Corresponding author
Bae, Jin-Woo
Venue
Gut
Publisher
BMJ
Published
2013-06-26
Volume
63
Issue
5
Pages
727-735
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2139334262
Cited by
1,550
References
55
Citations by year
2026: 70 · 2025: 101 · 2024: 151 · 2023: 127 · 2022: 167 · 2021: 176 · 2020: 168 · 2019: 143 · 2018: 117 · 2017: 119 · 2016: 95 · 2015: 68 · 2014: 42 · 2013: 4
FWCI
31.18
Type
journal article
Language
en
Open access
closed
Locations
  • Gut (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
Keywords
Akkermansia, Akkermansia muciniphila, metformin, gut microbiota, type 2 diabetes, diet-induced obesity, high-fat diet, glucose homeostasis, glucose tolerance, mucin-degrading bacteria, goblet cells, adipose tissue inflammation, Foxp3+ regulatory T cells, visceral adipose tissue, antidiabetic mechanism
MeSH terms
Animals, Blood Glucose, Drug Administration Schedule, Flow Cytometry, Homeostasis, Hypoglycemic Agents, Inflammation, Intestines, Metformin, Mice, Inbred C57BL, Mice, Obese, Biomarkers, Intra-Abdominal Fat, Mice, Diet, High-Fat, Verrucomicrobia, Microbiota

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