Evidence map›Paper›PMID 9365909›Full record

ArticleThe Journal of physiology1997

Endothelium-dependent frequency modulation of Ca2+ signalling in individual vascular smooth muscle cells of the rat.

Y Kasai, T Yamazawa, T Sakurai, Y Taketani, M Iino

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. The Role of Endothelial CaInternational journal of molecular sciences · 2018
    Review
  3. Review
  4. Article
  5. Review
  6. Calcium signaling in smooth muscle.Cold Spring Harbor perspectives in biology · 2011
    Review
  7. Article
  8. Article
  9. Functional architecture of inositol 1,4,5-trisphosphate signaling in restricted spaces of myoendothelial projections.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

5 authors at 2 institutions in 1 country.

Y KasaiDepartment of Pharmacology, Faculty of Medicine, University of Tokyo, Japan.
T Yamazawa
T Sakurai
Y Taketani
M Iino
The University of Tokyo · JPJapan Science and Technology Agency · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. We visualized intracellular Ca2+ concentration ([Ca2+]i) changes, using fluo-3 as an indicator, of individual vascular smooth muscle cells and endothelial cells within intact rat tail arteries by confocal microscopy. 2. Using a piezo-driven objective, we focused on endothelial and smooth muscle cell layers alternately to obtain Ca2+ images of their cells. In the presence of 1 microM acetylcholine (ACh), individual endothelial cells responded with intermittent increases in the [Ca2+]i (Ca2+ oscillations). At the same time, the frequency of Ca2+ oscillations in smooth muscle cells induced by electrical stimulation of the perivascular sympathetic nerve was greatly decreased. 3. A [Ca2+]i rise during the oscillations in the endothelial cells propagated in the form of a wave along the long axis of the cells. 4. In the presence of a NO synthase inhibitor, no significant inhibitory effect of ACh on the Ca2+ signalling in the vascular smooth muscle cells was detected, although the Ca2+ oscillations in the endothelial cells persisted. 5. The inhibitory effect of ACh on the frequency of Ca2+ oscillations in the vascular smooth muscle cells was mimicked by 1 microM sodium nitroprusside, a NO donor. 6. These results indicate that Ca2+ waves and oscillations in vascular endothelial cells regulate NO production, which modulates vascular tone by decreasing the frequency of Ca2+ oscillations in smooth muscle cells activated by sympathetic agonists.

Indexed as

AcetylcholineAniline CompoundsAnimalsArteriesBiological FactorsCalciumElectric StimulationEndothelium, VascularEnzyme InhibitorsFluorescent DyesImage Processing, Computer-AssistedMaleMicroscopy, FluorescenceMuscle, Smooth, VascularNitric OxideNitric Oxide Synthase4-(4-diethylaminostyryl)-N-methylpyridiniumAcetylcholineAniline CompoundsBiological FactorsCalciumendothelium-dependent hyperpolarization factorEnzyme InhibitorsFluo-3Fluorescent DyesNitric OxideNitric Oxide SynthaseNitroprussidePyridinium CompoundsSodiumXanthenes

Identifiers

PMID9365909
PMCPMC1159915
OpenAlexW2012605726

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.