Evidence map›Paper›PMID 20530114›Full record

ArticleThe Journal of physiology2010

Regulation of myocyte contraction via neuronal nitric oxide synthase: role of ryanodine receptor S-nitrosylation.

Honglan Wang, Serge Viatchenko-Karpinski, Junhui Sun, Inna Györke, Nancy A Benkusky, Mark J Kohr, Héctor H Valdivia, Elizabeth Murphy, Sandor Györke, Mark T Ziolo

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
3.8field-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

47 citing papers in PubMed, 90 citations in OpenAlex.

  1. Sex differences in mitochondrial CaJournal of molecular and cellular cardiology · 2026
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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.

Honglan WangDepartment of Physiology and Cell Biology, Ohio State University, 1645 Neil Avenue, Columbus, OH 43210, USA.
Serge Viatchenko-Karpinski
Junhui Sun
Inna Györke
Nancy A Benkusky
Mark J Kohr
Héctor H Valdivia
Elizabeth Murphy
Sandor Györke
Mark T Ziolo
Lung Institute · USNational Heart Lung and Blood Institute · USUniversity of Wisconsin–Madison · US

Funding

Mechanisms of cardiac ischemia-reperfusion injury and cardioprotectionZIAHL002066 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI MURPHY, ELIZABETH · 2009 to 2025
$20.4M
CONTROLLED AND UNCONTROLLABLE CALCIUM RELEASE IN HEARTR01HL063043 · NHLBI · TEXAS TECH UNIVERSITY HEALTH SCIS CENTER · PI Sandor Gyorke · 1999 to 2026
$8.6M
Ryanodine Receptor Channels in Heart FailureR01HL074045 · NHLBI · TEXAS TECH UNIVERSITY HEALTH SCIS CENTER · PI GYORKE, SANDOR · 2003 to 2024
$8.2M
Ryanodine Receptors, Calcium-dependent Arrhythmias & HCMR01HL055438 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI VALDIVIA, HECTOR H · 1996 to 2023
$8.0M
Role of S-nitrosylation in regulating cardiac function and diseaseZIAHL006059 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI MURPHY, ELIZABETH · 2010 to 2025
$7.2M
NOS1/NOS3 Functional Effects on Cardiac Myocyte FunctionR01HL079283 · NHLBI · OHIO STATE UNIVERSITY · PI ZIOLO, MARK T · 2006 to 2010
$1.8M
Nitric oxide signaling in healthy and diseased cardiac myocytesK02HL094692 · NHLBI · OHIO STATE UNIVERSITY · PI ZIOLO, MARK T · 2009 to 2013
$521k
Role of protein S-nitrosation in cardioprotectionF32HL096142 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI KOHR, MARK JEFFREY · 2009 to 2011
$144k
NHLBI NIH HHS F32 HL096142NHLBI NIH HHS HL 055438NHLBI NIH HHS HL 063043NHLBI NIH HHS HL 074045NHLBI NIH HHS HL 079283NHLBI NIH HHS HL 094692NHLBI NIH HHS K02 HL094692NHLBI NIH HHS R01 HL055438NHLBI NIH HHS R01 HL063043NHLBI NIH HHS R01 HL074045NHLBI NIH HHS R01 HL079283
6 · The paper itself

Abstract

The sarcoplasmic reticulum (SR) Ca(2+) release channel (ryanodine receptor, RyR2) has been proposed to be an end target of neuronal nitric oxide synthase (NOS1) signalling. The purpose of this study is to investigate the mechanism of NOS1 modulation of RyR2 activity and the corresponding effect on myocyte function. Myocytes were isolated from NOS1 knockout (NOS1(/)) and wild-type mice. NOS1(/) myocytes displayed a decreased fractional SR Ca(2+) release, NOS1 knockout also led to reduced RyR2 S-nitrosylation levels. RyR2 channels from NOS1(/) hearts had decreased RyR2 open probability. Additionally, knockout of NOS1 led to a decrease in [(3)H]ryanodine binding, Ca(2+) spark frequency (CaSpF) and a rightward shift in the SR Ca(2+) leak/load relationship. Similar effects were observed with acute inhibition of NOS1. These data are indicative of decreased RyR2 activity in myocytes with NOS1 knockout or acute inhibition. Interestingly, the NO donor and nitrosylating agent SNAP reversed the depressed RyR2 open probability, the reduced CaSpF, and caused a leftward shift in the leak/load relationship in NOS1(/) myocytes. SNAP also normalized Ca(2+) transient and cell shortening amplitudes and SR fractional release in myocytes with NOS1 knockout or acute inhibition. Furthermore, SNAP was able to normalize the RyR2 S-nitrosylation levels. These data suggest that NOS1 signalling increases RyR2 activity via S-nitrosylation, which contributes to the NOS1-induced positive inotropic effect. Thus, RyR2 is an important end target of NOS1.

Indexed as

AnimalsCells, CulturedFeedback, PhysiologicalMiceMice, Inbred C57BLMice, KnockoutMuscle ContractionMyocytes, CardiacNitric Oxide Synthase Type IRyanodine Receptor Calcium Release ChannelNitric Oxide Synthase Type INos1 protein, mouseRyanodine Receptor Calcium Release Channel

Identifiers

PMID20530114
PMCPMC2956906
OpenAlexW2153910284

What OpenQuestion holds

Textmetadata
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.