Evidence map›Paper›PMID 24204714›Full record

ArticlePloS one2013

Essential role of the m2R-RGS6-IKACh pathway in controlling intrinsic heart rate variability.

Ekaterina Posokhova, David Ng, Aaisha Opel, Ikuo Masuho, Andrew Tinker, Leslie G Biesecker, Kevin Wickman, Kirill A Martemyanov

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  7. Article
  8. A RGS7-CaMKII complex drives myocyte-intrinsic and myocyte-extrinsic mechanisms of chemotherapy-induced cardiotoxicity.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  9. Article
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  12. GPCR-dependent biasing of GIRK channel signaling dynamics by RGS6 in mouse sinoatrial nodal cells.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Review
  14. Atypical activation of the G protein GαThe Journal of biological chemistry · 2018
    Article
  15. Article
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  20. Regulator of G Protein Signaling 6 Protects the Heart from Ischemic Injury.The Journal of pharmacology and experimental therapeutics · 2017
    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

8 authors at 5 institutions in 2 countries.

Ekaterina PosokhovaDepartment of Neuroscience, The Scripps Research Institute, Jupiter, Florida, United States of America.
David Ng
Aaisha Opel
Ikuo Masuho
Andrew Tinker
Leslie G Biesecker
Kevin Wickman
Kirill A Martemyanov
Scripps Research Institute · USNational Human Genome Research Institute · USUniversity College London · GBUniversity of Minnesota · USWilliam Harvey Research Institute · GB

Funding

The role of RGS proteins in the parasympathetic control of heart rateR01HL105550 · NHLBI · UNIVERSITY OF MINNESOTA · PI MARTEMYANOV, KIRILL A., WICKMAN, KEVIN D · 2011 to 2018
$3.2M
British Heart Foundation FS/09/042/27860Intramural NIH HHSNHLBI NIH HHS HL105550NHLBI NIH HHS R01 HL105550Wellcome Trust 081475/Z/06/Z
6 · The paper itself

Abstract

Normal heart function requires generation of a regular rhythm by sinoatrial pacemaker cells and the alteration of this spontaneous heart rate by the autonomic input to match physiological demand. However, the molecular mechanisms that ensure consistent periodicity of cardiac contractions and fine tuning of this process by autonomic system are not completely understood. Here we examined the contribution of the m2R-I(KACh) intracellular signaling pathway, which mediates the negative chronotropic effect of parasympathetic stimulation, to the regulation of the cardiac pacemaking rhythm. Using isolated heart preparations and single-cell recordings we show that the m2R-I(KACh) signaling pathway controls the excitability and firing pattern of the sinoatrial cardiomyocytes and determines variability of cardiac rhythm in a manner independent from the autonomic input. Ablation of the major regulator of this pathway, Rgs6, in mice results in irregular cardiac rhythmicity and increases susceptibility to atrial fibrillation. We further identify several human subjects with variants in the RGS6 gene and show that the loss of function in RGS6 correlates with increased heart rate variability. These findings identify the essential role of the m2R-I(KACh) signaling pathway in the regulation of cardiac sinus rhythm and implicate RGS6 in arrhythmia pathogenesis.

Indexed as

AcetylcholineAnimalsArrhythmias, CardiacAutonomic Nervous SystemElectrocardiographyG Protein-Coupled Inwardly-Rectifying Potassium ChannelsHeartHeart RateHumansIn Vitro TechniquesMiceMice, Inbred C57BLMice, KnockoutMutation, MissenseMyocardiumReceptor, Muscarinic M2AcetylcholineG Protein-Coupled Inwardly-Rectifying Potassium ChannelsReceptor, Muscarinic M2Rgs6 protein, mouseRGS Proteins

Identifiers

PMID24204714
PMCPMC3812209
OpenAlexW2127958833

What OpenQuestion holds

Textmetadata
LicenceCC0
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.