Evidence map›Paper›PMID 24928508›Full record

ArticleThe Journal of biological chemistry2014

Low concentrations of metformin suppress glucose production in hepatocytes through AMP-activated protein kinase (AMPK).

Jia Cao, Shumei Meng, Evan Chang, Katherine Beckwith-Fickas, Lishou Xiong, Robert N Cole, Sally Radovick, Fredric E Wondisford, Ling He

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 103 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

103 citing papers in PubMed, 1 synthesis or guideline pooled it, 162 citations in OpenAlex.

  1. Pooled it
  2. Metformin Therapy in Autosomal Dominant Polycystic Kidney Disease: A Feasibility Study.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2022
    Trial
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Advances in the Use of Metformin for Liver Disease.Current medicinal chemistry · 2025
    Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

43 more citing papers are in PubMed but not listed here.

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

9 authors at 2 institutions in 2 countries.

Jia Cao
Shumei Meng
Evan Chang
Katherine Beckwith-Fickas
Lishou Xiong
Robert N Cole
Sally Radovick
Fredric E Wondisford
Ling He
Max Planck Institute for Metabolism Research · DEJohns Hopkins University · US

Funding

Translational Research Enhancement CoreP30DK089502 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI COLE, ROBERT N · 2011 to 2020
$12.0M
JHU-UMD Diabetes Research CenterP30DK079637 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI AHIMA, REXFORD S. · 2013 to 2017
$9.7M
Diabetes Research and Training CenterP60DK079637 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI WONDISFORD, FREDRIC E. · 2008 to 2012
$9.1M
Institute for Clinical and Translational ResearchUL1TR000424 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2012 to 2012
$6.0M
Transcriptional coactivators and hepatic glucose productionR01DK063349 · NIDDK · UNIVERSITY OF CHICAGO · PI WONDISFORD, FREDRIC E. · 2002 to 2017
$5.0M
Beta-cell ProliferationR01DK081472 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI HUSSAIN, MEHBOOB A, WONDISFORD, FREDRIC E. · 2009 to 2013
$2.1M
The Distinct Role of CBP and p300 in Regulating Hepatic Glucose ProductionR00DK085142 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI HE, LING · 2011 to 2013
$726k
NCATS NIH HHS UL1 TR000424NCATS NIH HHS UL1TR000424-06NIDDK NIH HHS P30 DK079637NIDDK NIH HHS P30 DK089502NIDDK NIH HHS P60 DK079637NIDDK NIH HHS P60DK079637NIDDK NIH HHS R00 DK085142NIDDK NIH HHS R00DK085142NIDDK NIH HHS R01 DK063349NIDDK NIH HHS R01 DK081472
6 · The paper itself

Abstract

Metformin is a first-line antidiabetic agent taken by 150 million people across the world every year, yet its mechanism remains only partially understood and controversial. It was proposed that suppression of glucose production in hepatocytes by metformin is AMPK-independent; however, unachievably high concentrations of metformin were employed in these studies. In the current study, we find that metformin, via an AMP-activated protein kinase (AMPK)-dependent mechanism, suppresses glucose production and gluconeogenic gene expression in primary hepatocytes at concentrations found in the portal vein of animals (60-80 μM). Metformin also inhibits gluconeogenic gene expression in the liver of mice administered orally with metformin. Furthermore, the cAMP-PKA pathway negatively regulates AMPK activity through phosphorylation at Ser-485/497 on the α subunit, which in turn reduces net phosphorylation at Thr-172. Because diabetic patients often have hyperglucagonemia, AMPKα phosphorylation at Ser-485/497 is a therapeutic target to improve metformin efficacy.

Indexed as

AMP-Activated Protein KinasesAnimalsCells, CulturedCyclic AMP-Dependent Protein KinasesDose-Response Relationship, DrugGene Expression RegulationGluconeogenesisGlucoseHepatocytesHypoglycemic AgentsMetforminMiceAMP-Activated Protein KinasesCyclic AMP-Dependent Protein KinasesGlucoseHypoglycemic AgentsMetformin

Identifiers

PMID24928508
PMCPMC4110255
OpenAlexW2010543985

What OpenQuestion holds

Textmetadata
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.