Evidence map›Paper›PMID 12941686›Full record

ArticleThe EMBO journal2003

Ca2+ channel-sarcoplasmic reticulum coupling: a mechanism of arterial myocyte contraction without Ca2+ influx.

Alberto del Valle-Rodríguez, José López-Barneo, Juan Ureña

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

30 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Voltage-gated CaAmerican journal of physiology. Heart and circulatory physiology · 2018
    Article
  8. Contribution of L-type CaHypertension research : official journal of the Japanese Society of Hypertension · 2018
    Article
  9. Article
  10. Long-term high-altitude hypoxia influences pulmonary arterial L-type calcium channel-mediated CaAmerican journal of physiology. Regulatory, integrative and comparative physiology · 2018
    Article
  11. KMicrocirculation (New York, N.Y. : 1994) · 2018
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. The interdependence of endothelin-1 and calcium: a review.Clinical science (London, England : 1979) · 2010
    Review
  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

3 authors at 1 institution in 1 country.

Alberto del Valle-RodríguezLaboratorio de Investigaciones Biomédicas, Departamento de Fisiología and Hospital Universitario Virgen del Rocío, Universidad de Sevilla, E-41013, Seville, Spain.
José López-Barneo
Juan Ureña
Universidad de Sevilla · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Contraction of vascular smooth muscle cells (VSMCs) depends on the rise of cytosolic [Ca2+] owing to either Ca2+ influx through voltage-gated Ca2+ channels of the plasmalemma or receptor-mediated Ca2+ release from the sarcoplasmic reticulum (SR). We show that voltage-gated Ca2+ channels in arterial myocytes mediate fast Ca2+ release from the SR and contraction without the need of Ca2+ influx. After sensing membrane depolarization, Ca2+ channels activate G proteins and the phospholipase C-inositol 1,4,5-trisphosphate (InsP3) pathway. Ca2+ released through InsP3-dependent channels of the SR activates ryanodine receptors to amplify the cytosolic Ca2+ signal. These observations demonstrate a new mechanism of signaling SR Ca(2+)-release channels and reveal an unexpected function of voltage-gated Ca2+ channels in arterial myocytes. Our findings may have therapeutic implications as the calcium-channel-induced Ca2+ release from the SR can be suppressed by Ca(2+)-channel antagonists.

Indexed as

AnimalsCalcium ChannelsCalcium SignalingGTP-Binding ProteinsInositol 1,4,5-TrisphosphateIn Vitro TechniquesMembrane PotentialsMuscle ContractionMuscle, Smooth, VascularMyocytes, Smooth MuscleRatsRats, WistarRyanodine Receptor Calcium Release ChannelSarcoplasmic ReticulumType C PhospholipasesCalcium ChannelsGTP-Binding ProteinsInositol 1,4,5-TrisphosphateRyanodine Receptor Calcium Release ChannelType C Phospholipases

Identifiers

PMID12941686
PMCPMC202374
OpenAlexW1977378747

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.