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The Gut Microbiome, Metformin, and Aging.

Sri Nitya Reddy Induri¹, Payalben Kansara¹, Scott C Thomas¹

¹Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA;

Annual Review of Pharmacology and Toxicology

|August 27, 2021

Summary

Metformin, a common diabetes drug, may promote healthy aging by influencing the gut microbiome. Individual responses to metformin suggest microbiome-drug interactions are key to its effectiveness and anti-aging benefits.

Keywords:

aging drug toxicity gut microbiome inflammaging metformin

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Area of Science:

Pharmacology
Microbiology
Gerontology

Background:

Metformin is a widely prescribed medication for type 2 diabetes.
Its mechanisms for promoting healthy aging are not fully understood.
The gut microbiome's role in metformin's efficacy is increasingly recognized.

Purpose of the Study:

To explore the influence of gut microbiome-drug-host interactions on metformin's functions.
To investigate metformin's potential role in maintaining a healthy gut microbiome.
To understand metformin's impact on age-related pathologies.

Main Methods:

Analysis of metformin concentration in gut versus plasma.
Investigating microbiome-drug-host interactions.
Systems-level approach to understand metformin's mechanisms.

Main Results:

Metformin concentration is significantly higher in the gut.
Gut microbiome perturbations are linked to inflammation.
Metformin may promote a healthy gut microbiome and reduce age-related issues.

Conclusions:

The gut microbiome likely plays a crucial role in metformin's variable efficacy.
Metformin's effects on aging may be mediated through its interaction with the gut microbiome.
Further research using a systems-level approach is needed to elucidate these mechanisms.