Cited by 448Metabolism, Diabetes, and CancerDiabetes Treatment and ManagementNatural Antidiabetic Agents Studies

Metformin Action: Concentrations Matter

Open access
He, Ling, Wondisford, Fredric E.·2015·Cell Metabolism

Abstract

Metformin has been used for nearly a century and is now the most widely prescribed oral anti-diabetic agent worldwide. Yet how metformin acts remains only partially understood and controversial. One key reason may be that almost all previous studies were conducted with supra-pharmacological concentrations (doses) of metformin, 10-100 times higher than maximally achievable therapeutic concentrations found in patients with type 2 diabetes mellitus.

Integrity signals

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Crossref · 10.1016/j.cmet.2015.01.003

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18 of 18 references verified0 citation errors · 0 not checkable

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  • Activation of AMPK by metformin has been observed at much lower metformin concentrations in comparable cell culture protocols using concentrations within the upper limits of therapeutic plasma levels.

    “activation of AMPK by metformin has been observed at much lower metformin concentrations in comparable cell culture protocols using metformin concentrations that are within the upper limits of its therapeutic plasma levels (4, 134).”
  • In both Arunachalam et al. and Ghosh et al., 50 μM metformin was used and justified on the basis that estimates of metformin levels in portal circulation following oral absorption are between 40 and 70 μM.

    “In both studies, Arunachalam et al. (110) and Ghosh et al. (111) used 50 μM metformin and justified this concentration on the basis that estimates of metformin levels in the portal circulation following oral absorption are between 40 and 70 μM (4, 181).”

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Authors
He, L., & Wondisford, F. E.
Affiliations
Johns Hopkins University (US)
Corresponding author
Wondisford, Fredric E.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2015-02
Volume
21
Issue
2
Pages
159-162
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2080654617
Cited by
448
References
18
Citations by year
2026: 25 · 2025: 30 · 2024: 39 · 2023: 43 · 2022: 61 · 2021: 57 · 2020: 59 · 2019: 37 · 2018: 41 · 2017: 30 · 2016: 16 · 2015: 10
FWCI
14.05
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Natural Antidiabetic Agents Studies
Keywords
metformin, type 2 diabetes, mechanism of action, therapeutic drug concentrations, oral antidiabetic drugs, pharmacokinetics
MeSH terms
Animals, Diabetes Mellitus, Type 2, Dose-Response Relationship, Drug, Humans, Metformin

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