Evidence map›Paper›PMID 21911754›Full record

ArticleDiabetes2011

Targeted inhibition of calpain reduces myocardial hypertrophy and fibrosis in mouse models of type 1 diabetes.

Ying Li, Jian Ma, Huaqing Zhu, Manpreet Singh, David Hill, Peter A Greer, J Malcolm Arnold, E Dale Abel, Tianqing Peng

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

73 citing papers in PubMed, 116 citations in OpenAlex.

  1. Article
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  5. Therapeutic potential ofFrontiers in nutrition · 2025
    Review
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  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Calpains as Potential Therapeutic Targets for Myocardial Hypertrophy.International journal of molecular sciences · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article

13 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 4 institutions in 2 countries.

Ying LiCritical Illness Research, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada.
Jian Ma
Huaqing Zhu
Manpreet Singh
David Hill
Peter A Greer
J Malcolm Arnold
E Dale Abel
Tianqing Peng
Western University · CALawson Health Research Institute · CAQueen's University · CAUniversity of Utah · US

Funding

Canadian Institutes of Health Research MOP93657
6 · The paper itself

Abstract

objectiveRecently we have shown that calpain-1 activation contributes to cardiomyocyte apoptosis induced by hyperglycemia. This study was undertaken to investigate whether targeted disruption of calpain would reduce myocardial hypertrophy and fibrosis in mouse models of type 1 diabetes. RESEARCH DESIGN AND

methodsDiabetes in mice was induced by injection of streptozotocin (STZ), and OVE26 mice were also used as a type 1 diabetic model. The function of calpain was genetically manipulated by cardiomyocyte-specific knockout Capn4 in mice and the use of calpastatin transgenic mice. Myocardial hypertrophy and fibrosis were investigated 2 and 5 months after STZ injection or in OVE26 diabetic mice at the age of 5 months. Cultured isolated adult mouse cardiac fibroblast cells were also investigated under high glucose conditions.

resultsCalpain activity, cardiomyocyte cross-sectional areas, and myocardial collagen deposition were significantly increased in both STZ-induced and OVE26 diabetic hearts, and these were accompanied by elevated expression of hypertrophic and fibrotic collagen genes. Deficiency of Capn4 or overexpression of calpastatin reduced myocardial hypertrophy and fibrosis in both diabetic models, leading to the improvement of myocardial function. These effects were associated with a normalization of the nuclear factor of activated T-cell nuclear factor-κB and matrix metalloproteinase (MMP) activities in diabetic hearts. In cultured cardiac fibroblasts, high glucose-induced proliferation and MMP activities were prevented by calpain inhibition.

conclusionsMyocardial hypertrophy and fibrosis in diabetic mice are attenuated by reduction of calpain function. Thus targeted inhibition of calpain represents a potential novel therapeutic strategy for reversing diabetic cardiomyopathy.

Indexed as

Disease Models, AnimalMolecular Targeted TherapyAnimalsCalcium-Binding ProteinsCalpainCardiomyopathy, HypertrophicCell ProliferationCells, CulturedDiabetes Mellitus, Type 1Diabetic CardiomyopathiesFibrosisGene Expression RegulationHeartHyperglycemiaMaleMiceCalcium-Binding ProteinsCalpaincalpastatinCapns1 protein, mouseStreptozocin

Identifiers

PMID21911754
PMCPMC3198063
OpenAlexW2144900838

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.