Evidence map›Paper›PMID 34548527›Full record

ArticleScientific reports2021

Metformin selectively dampens the acute inflammatory response through an AMPK-dependent mechanism.

Thomas S Postler, Vincent Peng, Dev M Bhatt, Sankar Ghosh

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.7field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 65 citations in OpenAlex.

  1. Trial
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  4. Metformin and Severe Post-COVID-19 Outcomes Among Individuals with Diabetes Mellitus.medRxiv : the preprint server for health sciences · 2026
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  9. Effect of Metformin on the Risk of Post-COVID-19 Condition Among Individuals With Overweight or Obese: A Population-based Retrospective Cohort Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 1 country.

Thomas S Postler *Department of Microbiology & Immunology, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA.ORCID 0000-0002-3558-9084
Vincent Peng *Department of Microbiology & Immunology, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA.
Dev M BhattDepartment of Microbiology & Immunology, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA.
Sankar GhoshDepartment of Microbiology & Immunology, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA. sg2715@cumc.columbia.edu.ORCID 0000-0002-3227-0588
Amgen (United States) · USColumbia University · USColumbia University Irving Medical Center · USWashington University in St. Louis · US

Funding

Regulation of NF-kB and IkB ProteinsR37AI033443 · NIAID · YALE UNIVERSITY · PI GHOSH, SANKAR · 2001 to 2010
$3.4M
NIAID NIH HHS R37 AI033443
6 · The paper itself

Abstract

Metformin is a first-line drug in the treatment of type-2 diabetes mellitus (T2DM). In addition to its antigluconeogenic and insulin-sensitizing properties, metformin has emerged as a potent inhibitor of the chronic inflammatory response of macrophages. In particular, metformin treatment has been shown to reduce expression of interleukin (IL-) 1β during long-term exposure to the pro-inflammatory stimulus lipopolysaccharide (LPS) through a reduction in reactive oxygen species (ROS), which decreases the levels of the hypoxia-inducible factor (HIF) 1-α, and through enhanced expression of IL-10. However, the effect of metformin on the acute inflammatory response, before significant levels of ROS accumulate in the cell, has not been explored. Here, we show that metformin alters the acute inflammatory response through its activation of AMP-activated protein kinase (AMPK), but independently of HIF1-α and IL-10, in primary macrophages and two macrophage-like cell lines. Thus, metformin changes the acute and the chronic inflammatory response through fundamentally distinct mechanisms. Furthermore, RNA-seq analysis reveals that metformin pretreatment affects the levels of a large yet selective subset of inflammatory genes, dampening the response to short-term LPS exposure and affecting a wide range of pathways and biological functions. Taken together, these findings reveal an unexpected complexity in the anti-inflammatory properties of this widely used drug.

Indexed as

Adenylate KinaseHumansHypoglycemic AgentsHypoxia-Inducible Factor 1, alpha SubunitInflammationInterleukin-10Interleukin-1betaLipopolysaccharidesMetforminNF-kappa BReactive Oxygen SpeciesRNA, MessengerAdenylate KinaseHIF1A protein, humanHypoglycemic AgentsHypoxia-Inducible Factor 1, alpha SubunitIL10 protein, humanIL1B protein, humanInterleukin-10Interleukin-1betaLipopolysaccharidesMetforminNF-kappa BReactive Oxygen SpeciesRNA, Messenger

Identifiers

PMID34548527
PMCPMC8455559
OpenAlexW3199388496

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.