Evidence map›Paper›PMID 18434746›Full record

ArticleJournal of vascular research2008

Heterogeneous gene expression and functional activity of ryanodine receptors in resistance and conduit pulmonary as well as mesenteric artery smooth muscle cells.

Yun-Min Zheng, Qing-Song Wang, Qing-Hua Liu, Rakesh Rathore, Vishal Yadav, Yong-Xiao Wang

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of vascular research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

32 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
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  7. Aging alters spontaneous and neurotransmitter-mediated CaMicrocirculation (New York, N.Y. : 1994) · 2020
    Article
  8. PLCγ1-PKCε-IPAmerican journal of physiology. Lung cellular and molecular physiology · 2018
    Article
  9. Long-term high-altitude hypoxia influences pulmonary arterial L-type calcium channel-mediated CaAmerican journal of physiology. Regulatory, integrative and comparative physiology · 2018
    Article
  10. Review
  11. Review
  12. Article
  13. Article
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  18. Important role of PLC-γ1 in hypoxic increase in intracellular calcium in pulmonary arterial smooth muscle cells.American journal of physiology. Lung cellular and molecular physiology · 2013
    Article
  19. Effects of spaceflight and ground recovery on mesenteric artery and vein constrictor properties in mice.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 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

6 authors at 1 institution in 1 country.

Yun-Min ZhengCenter for Cardiovascular Sciences, Albany Medical College, Albany, NY 12158, USA.
Qing-Song Wang
Qing-Hua Liu
Rakesh Rathore
Vishal Yadav
Yong-Xiao Wang
Albany Medical Center Hospital · US

Funding

Mechanisms for hypoxic Ca2+ release in pulmonary artery myocytesR01HL064043 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI WANG, YONG-XIAO · 2000 to 2010
$2.7M
Hypoxic Ca2+ release /pulmonary /systemic artery myocyteR01HL075190 · NHLBI · ALBANY MEDICAL COLLEGE · PI WANG, YONG-XIAO · 2003 to 2006
$1.6M
NHLBI NIH HHS R01 HL064043NHLBI NIH HHS R01 HL075190
6 · The paper itself

Abstract

backgroundHypoxia causes heterogeneous contractile responses in resistance and conduit pulmonary as well as systemic (mesenteric) artery smooth muscle cells (RPASMCs, CPASMCs and MASMCs), but the underlying mechanisms are largely unknown. In this study, we aimed to investigate whether the gene expression and functional activity of ryanodine receptors (RyRs) would be different in these 3 cell types.

methodsRyR mRNA expression, Ca(2+) sparks and [Ca(2+)](i) were measured by real-time quantitative RT-PCR, laser scanning confocal microscopy and wide-field fluorescence microscopy, respectively.

resultsAll 3 RyR subtype (RyR1, RyR2 and RyR3) mRNAs are expressed in RPASMCs, CPASMCs and MASMCs, but their expression levels are different. Spontaneous Ca(2+) sparks (functional events of RyRs) show distinct frequency, amplitude, duration, size and kinetics in these 3 cell types. Similarly, activation of RyRs by caffeine, 4-chloro-m-cresol or high K(+) induces differential Ca(2+) release. Moreover, hypoxia-induced increase in [Ca(2+)](i) is largest in MASMCs relative to CPSAMCs and smallest in RPASMCs.

conclusionThis study provides comprehensive evidence that RyRs are heterogeneous in gene expression and functional activity in RPASMCs, CPASMCs and MASMCs, which may contribute to the diversity of excitation-contraction coupling and hypoxic Ca(2+) responses in different vascular smooth muscle cells.

Indexed as

Calcium SignalingAnimalsCaffeineCell HypoxiaCresolsGene Expression RegulationIn Vitro TechniquesKineticsMaleMesenteric ArteriesMiceMicroscopy, ConfocalMicroscopy, FluorescenceMuscle, Smooth, VascularMyocytes, Smooth MusclePotassiumCaffeinechlorocresolCresolsPotassiumRNA, MessengerRyanodine Receptor Calcium Release Channel

Identifiers

PMID18434746
PMCPMC2574544
OpenAlexW2031511436

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.