Evidence map›Paper›PMID 34296521›Full record

ArticleJournal of cellular and molecular medicine2021

Metformin alleviates oxidative stress-induced senescence of human lens epithelial cells via AMPK activation and autophagic flux restoration.

Mengmeng Chen, Chunmei Zhang, Nan Zhou, Xu Wang, Dongmei Su, Yanhua Qi

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 40 citations in OpenAlex.

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  10. [Regulatory Role of the AKT1/AMPK Pathway in Oxidative Stress of Lens Epithelial Cells in Cataract Patients].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
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  20. Metformin protects human lens epithelial cells from high glucose-induced senescence and autophagy inhibition by upregulating SIRT1.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 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

6 authors at 2 institutions in 1 country.

Mengmeng ChenDepartment of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Chunmei ZhangDepartment of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Nan ZhouDepartment of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Xu WangDepartment of Ophthalmology, Xixi Hospital of Hangzhou, Hangzhou, China.
Dongmei SuDepartment of Genetics, Health Department, National Research Institute for Family Planning, Beijing, China.
Yanhua QiDepartment of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.ORCID 0000-0001-5808-6837
Harbin Medical University · CNHangzhou Xixi hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cataracts are the leading cause of blindness worldwide owing to the increasing proportion of elderly individuals in the population. The purpose of this study was to investigate whether metformin could alleviate the occurrence and development of age-related cataract (ARC) and the underlying mechanism. In the present study, we established a senescence model induced by oxidative stress, which was confirmed by measuring β-galactosidase activity, qRT-PCR and Western blotting. In addition, we showed that metformin alleviated the oxidative stress-induced senescence of HLE-B3 cells via the activation of AMPK. Next, we provided evidence that oxidative stress impaired autophagic flux and induced lysosomal dysfunction. Subsequently, we found that metformin restored autophagic flux that had been impaired by oxidative stress by activating AMPK. Additionally, we found that metformin suppressed HLE-B3 cell senescence by improving lysosomal function and inactivating mTOR. Furthermore, the inactivation of AMPK, impairment of autophagic flux and lysosomal dysfunction were observed in the human lens epithelium of ARC. In summary, our data suggest that the activation of AMPK may be a potential strategy for preventing ARC, and metformin may be an emerging candidate to alleviate the formation and development of ARC.

Indexed as

AntioxidantsCataractCell LineCellular SenescenceEpithelial CellsFemaleHumansLens, CrystallineMaleMetforminMiddle AgedOxidative StressAntioxidantsMetforminadenosine monophosphateage-related cataractautophagic fluxmetforminoxidative stresssenescence

Identifiers

PMID34296521
PMCPMC8419182
OpenAlexW3183990886

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.