Evidence map›Paper›PMID 19549818›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Membrane depolarization causes a direct activation of G protein-coupled receptors leading to local Ca2+ release in smooth muscle.

Qing-Hua Liu, Yun-Min Zheng, Amit S Korde, Vishal R Yadav, Rakesh Rathore, Jürgen Wess, Yong-Xiao Wang

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
3.5field-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

57 citing papers in PubMed, 93 citations in OpenAlex.

  1. Review
  2. Article
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  5. Article
  6. Article
  7. Article
  8. Review
  9. Inhibition of big-conductance CaPflugers Archiv : European journal of physiology · 2021
    Article
  10. Review
  11. Review
  12. Article
  13. Altered Lipid Domains Facilitate Enhanced Pulmonary Vasoconstriction after Chronic Hypoxia.American journal of respiratory cell and molecular biology · 2020
    Article
  14. Important Role of Sarcoplasmic Reticulum CaAntioxidants & redox signaling · 2020
    Article
  15. Article
  16. Roles of LRRC26 as an auxiliary γ1-subunit of large-conductance CaAmerican journal of physiology. Lung cellular and molecular physiology · 2020
    Article
  17. Review
  18. Aloperine Relieves Type 2 Diabetes MellitusFrontiers in pharmacology · 2020
    Article
  19. Article
  20. Review
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

7 authors at 2 institutions in 1 country.

Qing-Hua LiuCenter for Cardiovascular Sciences, Albany Medical College, Albany, NY 12208, USA.
Yun-Min Zheng
Amit S Korde
Vishal R Yadav
Rakesh Rathore
Jürgen Wess
Yong-Xiao Wang
Albany Medical Center Hospital · USNational Institute of Diabetes and Digestive and Kidney Diseases · US

Funding

Muscarinic acetylcholine receptor subtypes: physiological rolesZIADK075020 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI WESS, JURGEN · 2009 to 2025
$6.1M
Novel Signaling for Ca2+ and Release in Airway MyocytesR01HL071000 · NHLBI · ALBANY MEDICAL COLLEGE · PI WANG, YONG-XIAO · 2003 to 2007
$1.8M
Intramural NIH HHSNHLBI NIH HHS R01 HL071000NHLBI NIH HHS R01HL071000
6 · The paper itself

Abstract

Membrane depolarization activates voltage-dependent Ca(2+) channels (VDCCs) inducing Ca(2+) release via ryanodine receptors (RyRs), which is obligatory for skeletal and cardiac muscle contraction and other physiological responses. However, depolarization-induced Ca(2+) release and its functional importance as well as underlying signaling mechanisms in smooth muscle cells (SMCs) are largely unknown. Here we report that membrane depolarization can induce RyR-mediated local Ca(2+) release, leading to a significant increase in the activity of Ca(2+) sparks and contraction in airway SMCs. The increased Ca(2+) sparks are independent of VDCCs and the associated extracellular Ca(2+) influx. This format of local Ca(2+) release results from a direct activation of G protein-coupled, M(3) muscarinic receptors in the absence of exogenous agonists, which causes activation of Gq proteins and phospholipase C, and generation of inositol 1,4,5-triphosphate (IP(3)), inducing initial Ca(2+) release through IP(3) receptors and then further Ca(2+) release via RyR2 due to a local Ca(2+)-induced Ca(2+) release process. These findings demonstrate an important mechanism for Ca(2+) signaling and attendant physiological function in SMCs.

Indexed as

AnimalsCalciumCalcium ChannelsCalcium SignalingExtracellular SpaceGTP-Binding Protein alpha Subunits, Gq-G11Membrane PotentialsMiceMuscle, SmoothMyocytes, Smooth MusclePotassiumReceptors, G-Protein-CoupledRyanodine Receptor Calcium Release ChannelCalciumCalcium ChannelsGTP-Binding Protein alpha Subunits, Gq-G11PotassiumReceptors, G-Protein-CoupledRyanodine Receptor Calcium Release Channel

Identifiers

PMID19549818
PMCPMC2708720
OpenAlexW2049787944

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.