Evidence map›Paper›PMID 32156705›Full record

ArticleAnnals of the rheumatic diseases2020

Metformin limits osteoarthritis development and progression through activation of AMPK signalling.

Jun Li, Bin Zhang, Wei-Xiao Liu, Ke Lu, Haobo Pan, Tingyu Wang, Chun-do Oh, Dan Yi, Jian Huang, Lan Zhao and 6 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 178 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
178citing papers in PubMed, 2 pooled it
12.7field-weighted citation impact, top 1% 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

178 citing papers in PubMed, 2 syntheses or guidelines pooled it, 289 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Emerging therapies for knee osteoarthritis.Nature reviews. Rheumatology · 2026
    Review
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  12. Targeting the SARM1-cADPR-CaArthritis research & therapy · 2026
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  18. Article
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118 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 6 institutions in 2 countries.

Jun Li *Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Bin Zhang *Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.
Wei-Xiao LiuDepartment of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.
Ke LuResearch Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
Haobo PanResearch Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
Tingyu WangDepartment of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Chun-do OhDepartment of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Dan YiDepartment of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Jian HuangDepartment of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.ORCID 0000-0002-6676-5159
Lan ZhaoDepartment of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Guangzhi NingDepartment of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.
Cong XingDepartment of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.
Guozhi XiaoSchool of Medicine, Southern University of Science and Technology, Shenzhen, China.ORCID 0000-0002-4269-2450
Ru Liu-BryanDivision of Rheumatology, Allergy and Immunology, San Diego VA Healthcare System, San Diego, California, USA di.chen@siat.ac.cn ruliu@ucsd.edu fengsq@hotmail.com.
Shiqing FengDepartment of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China di.chen@siat.ac.cn ruliu@ucsd.edu fengsq@hotmail.com.
Di ChenDepartment of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA di.chen@siat.ac.cn ruliu@ucsd.edu fengsq@hotmail.com.ORCID 0000-0002-9854-8685
Rush University Medical Center · USTianjin Medical University General Hospital · CNChinese Academy of Sciences · CNShanghai Jiao Tong University · CNSouthern University of Science and Technology · CNVA San Diego Healthcare System · US

Funding

The Role of MicroRNA in Osteoarthritis: Alzheimer's Administrative SupplementR01AR070222 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI HUANG, JIAN, ZHAO, LAN · 2017 to 2022
$2.1M
The mechanism of B-catenin-induced Disc DegenerationR03AG061460 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI OH, CHUNDO · 2019 to 2020
$157k
ATP-Citrate Lyase As A Novel Metabolic Target for OsteoarthritisI01BX002234 · VA · VA SAN DIEGO HEALTHCARE SYSTEM · PI BRYAN, RU · 2015 to 2022
–
BLRD VA I01 BX002234NIAMS NIH HHS R01 AR070222NIA NIH HHS R03 AG061460
6 · The paper itself

Abstract

objectivesIn this study, we aim to determine the effect of metformin on osteoarthritis (OA) development and progression.

methodsDestabilisation of the medial meniscus (DMM) surgery was performed in 10-week-old wild type and AMP-activated protein kinase (AMPK)α1 knockout (KO) mice. Metformin (4 mg/day in drinking water) was given, commencing either 2 weeks before or 2 weeks after DMM surgery. Mice were sacrificed 6 and 12 weeks after DMM surgery. OA phenotype was analysed by micro-computerised tomography (μCT), histology and pain-related behaviour tests. AMPKα1 (catalytic alpha subunit of AMPK) expression was examined by immunohistochemistry and immunofluorescence analyses. The OA phenotype was also determined by μCT and MRI in non-human primates.

resultsMetformin upregulated phosphorylated and total AMPK expression in articular cartilage tissue. Mild and more severe cartilage degeneration was observed at 6 and 12 weeks after DMM surgery, evidenced by markedly increased Osteoarthritis Research Society International scores, as well as reduced cartilage areas. The administration of metformin, commencing either before or after DMM surgery, caused significant reduction in cartilage degradation. Prominent synovial hyperplasia and osteophyte formation were observed at both 6 and 12 weeks after DMM surgery; these were significantly inhibited by treatment with metformin either before or after DMM surgery. The protective effects of metformin on OA development were not observed in AMPKα1 KO mice, suggesting that the chondroprotective effect of metformin is mediated by AMPK signalling. In addition, we demonstrated that treatment with metformin could also protect from OA progression in a partial medial meniscectomy animal model in non-human primates.

conclusionsThe present study suggests that metformin, administered shortly after joint injury, can limit OA development and progression in injury-induced OA animal models.

Indexed as

AMP-Activated Protein KinasesAnimalsCartilage, ArticularCells, CulturedChondrocytesDisease Models, AnimalDisease ProgressionGene Expression RegulationHumansHypoglycemic AgentsMenisci, TibialMetforminMiceMice, KnockoutMice, ObeseOsteoarthritisAMP-Activated Protein KinasesHypoglycemic AgentsMetforminarthritischondrocytesosteoarthritistreatment

Identifiers

PMID32156705
PMCPMC7213329
OpenAlexW3011875247

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

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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.