Evidence map›Paper›PMID 20639649›Full record

ArticleJournal of vascular research2011

Angiotensin II upregulates Ca(V)1.2 protein expression in cultured arteries via endothelial H(2)O(2) production.

Wenze Wang, Li Pang, Philip Palade

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Journal of vascular research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 32% 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

8 citing papers in PubMed, 9 citations in OpenAlex.

  1. Trial
  2. Oxidative Regulation of Vascular CaAntioxidants (Basel, Switzerland) · 2022
    Review
  3. Article
  4. 17β-estradiol reduces CaPharmacology research & perspectives · 2017
    Article
  5. Review
  6. Article
  7. Mineralocorticoid-receptor signalling in vascular smooth muscle.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2013
    Review
  8. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Wenze WangDepartment of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Ark 72205, USA. wwang @ uams.edu
Li Pang
Philip Palade
University of Arkansas for Medical Sciences · US

Funding

THE ALPHA-1C CALCIUM CHANNEL IN MUSCLER01HL063903 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI PALADE, PHILIP T. · 2000 to 2004
$1.6M
Cav1.2 Transcript Regulation in Heart and Smooth MuscleR01HL073097 · NHLBI · UNIV OF ARKANSAS FOR MED SCIS · PI PALADE, PHILIP T. · 2004 to 2007
$1.2M
NHLBI NIH HHS HL 073097NHLBI NIH HHS HL 63903NHLBI NIH HHS R01 HL063903NHLBI NIH HHS R01 HL073097
6 · The paper itself

Abstract

backgroundWe previously reported that angiotensin II caused an endothelial-dependent increase in L-type voltage-dependent Ca(2+) channel (Ca(V)1.2) in cultured arteries, but the signaling pathways are not clear.

methodsEndothelial damage was generated by brief intra-arterial perfusion with 0.3% CHAPS. Ca(V)1.2 expression, function and H(2)O(2) were measured by Western blot, tension recording and Amplex Red H(2)O(2) assay kit, respectively.

resultsAngiotensin II dose-dependently upregulated Ca(V)1.2 expression in endothelium-intact arteries. The angiotensin II upregulation of Ca(V)1.2 expression in endothelium-intact arteries was blocked by NAD(P)H oxidase inhibitor diphenyleneiodonium (DPI), apocynin, a more specific NAD(P)H oxidase inhibitor gp91ds-tat and also by catalase. H(2)O(2) similarly upregulated Ca(V)1.2 expression in endothelium-intact and endothelium-damaged arteries, and the latter effect was also blocked by DPI and apocynin. Angiotensin II increased H(2)O(2) production by endothelium-intact but not by endothelium-damaged arteries, and this effect was blocked by apocynin, catalase and gp91ds-tat. The upregulation of Ca(V)1.2 by angiotensin II and H(2)O(2) is accompanied by an increased tension response to KCl and the Ca(2+) channel activator FPL 64176, and this effect was also attenuated by gp91ds-tat.

conclusionThese results suggest that angiotensin II stimulates endothelial NAD(P)H oxidase-produced H(2)O(2,) which may additionally act through vascular smooth muscle NAD(P)H oxidase, to upregulate vascular Ca(V)1.2 protein.

Indexed as

Angiotensin IIAnimalsCalcium Channels, L-TypeCells, CulturedEndothelium, VascularHydrogen PeroxideMaleMembrane GlycoproteinsMesenteric ArteriesMuscle, Smooth, VascularNADPH Oxidase 2NADPH OxidasesRatsRats, Sprague-DawleyUp-RegulationVasoconstrictor AgentsAngiotensin IICacna1c protein, ratCalcium Channels, L-TypeCybb protein, ratHydrogen PeroxideMembrane GlycoproteinsNADPH Oxidase 2NADPH OxidasesVasoconstrictor Agents

Identifiers

PMID20639649
PMCPMC3214952
OpenAlexW2078152129

What Socratic 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 Socratic graph.