Evidence map›Paper›PMID 1654411›Full record

ArticleThe Journal of physiology1991

Cyclic AMP relaxes swine arterial smooth muscle predominantly by decreasing cell Ca2+ concentration.

N L McDaniel, C M Rembold, H M Richard, R A Murphy

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-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

17 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Genistein in the Treatment of Hypertension: A Review.Endocrine, metabolic & immune disorders drug targets · 2022
    Review
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  14. Ca2+ pumps in smooth muscle cells.Journal of muscle research and cell motility · 1993
    Review
  15. Article
  16. Article
  17. 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

4 authors at 1 institution in 1 country.

N L McDanielDepartment of Pediatrics, University of Virginia Health Sciences Center, Charlottesville 22908.
C M Rembold
H M Richard
R A Murphy
University of Virginia Health System · US

Funding

THE CONTRACTILE SYSTEM OF VASCULAR SMOOTH MUSCLEP01HL019242 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI OWENS, GARY K · 1985 to 2009
$16.9M
CELL CA2+ AND CONTRACTION IN VASCULAR SMOOTH MUSCLER01HL038918 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI REMBOLD, CHRISTOPHER M · 1987 to 1995
–
NHLBI NIH HHS 1RO1-HL38918NHLBI NIH HHS 5PO1-HL19242
6 · The paper itself

Abstract

1. Our objective was to evaluate the mechanism of cyclic AMP-dependent arterial smooth muscle relaxation. Cyclic AMP-dependent relaxation has been proposed to result from either (a) a decrease in intracellular [Ca2+] or (b) a decrease in [Ca2+] sensitivity of myosin light chain kinase by protein kinase A-dependent phosphorylation of myosin kinase. 2. We evaluated these proposed mechanisms by examining forskolin-induced changes in aequorin-estimated myoplasmic [Ca2+], [cyclic AMP], myosin phosphorylation and stress generation in agonist-stimulated or KCl-depolarized swine common carotid media tissues. 3. Forskolin, an activator of adenylyl cyclase, increased [cyclic AMP] and reduced [Ca2+], myosin phosphorylation and stress in tissues pre-contracted with phenylephrine or histamine. This relaxation was not associated with an alteration of the [Ca2+] sensitivity of phosphorylation, nor the dependence of stress on phosphorylation. 4. Forskolin pre-treatment attenuated, but did not abolish, agonist-induced increases in [Ca2+] and stress. 5. These results suggest that cyclic AMP-induced relaxation of the agonist-stimulated swine carotid media is primarily caused by cyclic AMP-mediated decreases in myoplasmic [Ca2+].

Indexed as

AnimalsCalciumCarotid ArteriesColforsinCyclic AMPMuscle RelaxationMuscle, Smooth, VascularMyosin-Light-Chain KinasePhenylephrinePhosphorylationSwineCalciumColforsinCyclic AMPMyosin-Light-Chain KinasePhenylephrine

Identifiers

PMID1654411
PMCPMC1180103
OpenAlexW2068287788

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.