Evidence map›Paper›PMID 20128816›Full record

ArticleBritish journal of pharmacology2010

Activation of cardiac muscarinic M3 receptors induces delayed cardioprotection by preserving phosphorylated connexin43 and up-regulating cyclooxygenase-2 expression.

Jinlong Zhao, Yue Su, Yong Zhang, Zhenwei Pan, Lili Yang, Xichuang Chen, Yan Liu, Yanjie Lu, Zhimin Du, Baofeng Yang

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

23 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Article
  3. The Role of Muscarinic Acetylcholine Receptor MInternational journal of molecular sciences · 2024
    Review
  4. Review
  5. MCardiovascular diagnosis and therapy · 2024
    Article
  6. Article
  7. The association between RGS4 and choline in cardiac fibrosis.Cell communication and signaling : CCS · 2021
    Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Vagal nerve stimulation improves mitochondrial dynamics via an MJournal of cellular and molecular medicine · 2017
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Hindlimb unloading results in increased predisposition to cardiac arrhythmias and alters left ventricular connexin 43 expression.American journal of physiology. Regulatory, integrative and comparative physiology · 2013
    Article
  19. Choline protects against cardiac hypertrophy induced by increased after-load.International journal of biological sciences · 2013
    Article
  20. 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

10 authors at 3 institutions in 1 country.

Jinlong ZhaoInstitute of Clinical Pharmacy, Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China.
Yue Su
Yong Zhang
Zhenwei Pan
Lili Yang
Xichuang Chen
Yan Liu
Yanjie Lu
Zhimin Du
Baofeng Yang
Harbin Medical University · CNSecond Affiliated Hospital of Harbin Medical University · CNEducation Department of Heilongjiang Province · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeActivation of muscarinic M(3) mucarinic acetylcholine receptors (M(3)-mAChRs) has been previously shown to confer short-term cardioprotection against ischaemic injuries. However, it is not known whether activation of these receptors can provide delayed cardioprotection. Consequently, the present study was undertaken to investigate whether stimulation of M(3)-mAChRs can induce delayed preconditioning in rats, and to characterize the potential mechanism. EXPERIMENTAL APPROACH: Rats were pretreated (24 h), respectively, with M(3)-mAChRs agonist choline, M(3)-mAChRs antagonist 4-DAMP or M(2)-mAChRs antagonist methoctramine followed by the administration of choline. This was followed by 30 min of ischaemia and then 3 h of reperfusion. Ischaemia-induced arrhythmias and ischaemia-reperfusion (I/R)-induced infarction were determined. The phosphorylation status of connexin43 (Cx43) after 30 min ischaemia, and the expression level of Hsp70, cyclooxygenase-2 (COX-2) and iNOS effected by administration of choline were also measured. KEY

resultsCompared to the control group, pretreatment with choline significantly decreased ischaemia-induced arrhythmias, reduced the total number of ventricular premature beats, the duration of ventricular tachycardia episodes and markedly reduced I/R-induced infarct size. Furthermore, choline attenuated ischaemia-induced dephosphorylation of Cx43, and up-regulated the expression of Hsp70 and COX-2. Administration of 4-DAMP abolished these changes, while methoctramine had no effect. CONCLUSIONS AND IMPLICATIONS: Our results suggest that stimulation of M(3)-mAChRs with choline elicits delayed preconditioning, which we propose is the result of up-regulation of the expression of COX-2 and inhibition of the ischaemia-induced dephosphorylation of Cx43. Therefore, M(3)-mAChRs represent a promising target for rendering cardiomyocytes tolerant to ischaemic injury.

Indexed as

MyocardiumAnimalsArrhythmias, CardiacCholineConnexin 43Cyclooxygenase 2Disease Models, AnimalHemodynamicsMaleMuscarinic AgonistsMyocardial InfarctionMyocardial Reperfusion InjuryPhosphorylationRatsRats, WistarReceptor, Muscarinic M3CholineConnexin 43Cyclooxygenase 2Muscarinic AgonistsReceptor, Muscarinic M3

Identifiers

PMID20128816
PMCPMC2848926
OpenAlexW1565763167

What OpenQuestion holds

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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.