The Gut Microbiome, Metformin, and Aging

Sri Nitya Reddy Induri, Payalben Kansara, Scott C. Thomas, Fangxi Xu, Deepak Saxena, Xin Li

Research output: Contribution to journalReview articlepeer-review

Abstract

Metformin has been extensively used for the treatment of type 2 diabetes, and it may also promote healthy aging. Despite its widespread use and versatility, metformin's mechanisms of action remain elusive. The gut typically harbors thousands of bacterial species, and as the concentration of metformin is much higher in the gut as compared to plasma, it is plausible that microbiome-drug-host interactions may influence the functions of metformin. Detrimental perturbations in the aging gut microbiome lead to the activation of the innate immune response concomitant with chronic low-grade inflammation. With the effectiveness of metformin in diabetes and antiaging varying among individuals, there is reason to believe that the gut microbiome plays a role in the efficacy of metformin. Metformin has been implicated in the promotion and maintenance of a healthy gut microbiome and reduces many age-related degenerative pathologies. Mechanistic understanding of metformin in the promotion of a healthy gut microbiome and aging will require a systems-level approach. Expected final online publication date for the Annual Review of Pharmacology and Toxicology, Volume 62 is January 2022.

Original languageEnglish (US)
Article number093829
JournalAnnual Review of Pharmacology and Toxicology
Volume62
DOIs
StatePublished - Aug 24 2021

ASJC Scopus subject areas

  • Toxicology
  • Pharmacology

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