Evidence mapPaperPMID 32441464Full record

ArticleJournal of cellular and molecular medicine2020

Metformin regulates adiponectin signalling in epicardial adipose tissue and reduces atrial fibrillation vulnerability.

Biao Li, Sunny S Po, Baojian Zhang, Fan Bai, Jiayi Li, Fen Qin, Na Liu, Chao Sun, Yichao Xiao, Tao Tu and 2 more

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.3field-weighted citation impact, top 4% 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

37 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Metformin Protects Against Persistent Atrial Fibrillation in an Equine Model.Circulation. Arrhythmia and electrophysiology · 2025
    Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Animal and cellular models of atrial fibrillation: a review.Frontiers in cardiovascular medicine · 2025
    Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Drug design, development and therapy · 2024
    Article
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

12 authors at 2 institutions in 2 countries.

Biao LiDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Sunny S PoHeart Rhythm Institute and Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Baojian ZhangDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Fan BaiDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Jiayi LiDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Fen QinDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Na LiuDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Chao SunDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Yichao XiaoDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Tao TuDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Shenghua ZhouDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.
Qiming LiuDepartment of Cardiology/Cardiac Catheterization Lab, Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, China.ORCID 0000-0002-5213-2668
Central South University · CNUniversity of Oklahoma Health Sciences Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epicardial adipose tissue (EAT) remodelling is closely related to the pathogenesis of atrial fibrillation (AF). We investigated whether metformin (MET) prevents AF-dependent EAT remodelling and AF vulnerability in dogs. A canine AF model was developed by 6-week rapid atrial pacing (RAP), and electrophysiological parameters were measured. Effective refractory periods (ERP) were decreased in the left and right atrial appendages as well as in the left atrium (LA) and right atrium (RA). MET attenuated the RAP-induced increase in ERP dispersion, cumulative window of vulnerability, AF inducibility and AF duration. RAP increased reactive oxygen species (ROS) production and nuclear factor kappa-B (NF-κB) phosphorylation; up-regulated interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α) and transforming growth factor-β1 (TGF-β1) levels in LA and EAT; decreased peroxisome proliferator-activated receptor gamma (PPARγ) and adiponectin (APN) expression in EAT and was accompanied by atrial fibrosis and adipose infiltration. MET reversed these alterations. In vitro, lipopolysaccharide (LPS) exposure increased IL-6, TNF-α and TGF-β1 expression and decreased PPARγ/APN expression in 3T3-L1 adipocytes, which were all reversed after MET administration. Indirect coculture of HL-1 cells with LPS-stimulated 3T3-L1 conditioned medium (CM) significantly increased IL-6, TNF-α and TGF-β1 expression and decreased SERCA2a and p-PLN expression, while LPS + MET CM and APN treatment alleviated the inflammatory response and sarcoplasmic reticulum Ca

Indexed as

3T3-L1 CellsAdipocytesAdiponectinAdipose TissueAnimalsAtrial FibrillationAtrial RemodelingBiomarkersCalciumCytokinesDisease Models, AnimalDisease SusceptibilityDogsElectrocardiographyInflammation MediatorsMetforminAdiponectinBiomarkersCalciumCytokinesInflammation MediatorsMetforminReactive Oxygen Speciesadiponectinatrial fibrillationepicardial adipose tissueinflammationmetformin

Identifiers

PMID32441464
PMCPMC7348162
OpenAlexW3026964594

What Socratic 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 Socratic graph.