Evidence map›Paper›PMID 21317308›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2011

Exercise limits the production of endothelin in the coronary vasculature.

Vincent J de Beer, Shawn B Bender, Yannick J Taverne, Fen Gao, Dirk J Duncker, M Harold Laughlin, Daphne Merkus

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Coronary microvascular adaptations distal to epicardial artery stenosis.American journal of physiology. Heart and circulatory physiology · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. Chronic interval exercise training prevents BKJournal of applied physiology (Bethesda, Md. : 1985) · 2018
    Article
  7. Regulation of Coronary Blood Flow.Comprehensive Physiology · 2017
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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

7 authors at 2 institutions in 2 countries.

Vincent J de BeerDivision of Experimental Cardiology, Department of Cardiology, Thoraxcenter, he Netherlands. d.merkus@erasmusmc.nl
Shawn B Bender
Yannick J Taverne
Fen Gao
Dirk J Duncker
M Harold Laughlin
Daphne Merkus
Erasmus University Rotterdam · NLUniversity of Missouri · US

Funding

Vascular Biology: Exercise Training and Vascular DiseaseP01HL052490 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI LAUGHLIN, M HAROLD · 1995 to 2010
$19.3M
Exercise &Health: Integration from Molecule to PatientT32AR048523 · NIAMS · UNIVERSITY OF MISSOURI-COLUMBIA · PI TERJUNG, RONALD L · 2003 to 2013
$2.5M
NHLBI NIH HHS HL-52490NIAMS NIH HHS AR-048523
6 · The paper itself

Abstract

We previously demonstrated that endothelin (ET)-mediated coronary vasoconstriction wanes with increasing exercise intensity via a nitric oxide- and prostacyclin-dependent mechanism (Ref. 23). Therefore, we hypothesized that the waning of ET coronary vasoconstriction during exercise is the result of decreased production of ET and/or decreased ET receptor sensitivity. We investigated coronary ET receptor sensitivity using intravenous infusion of ET and coronary ET production using intravenous infusion of the ET precursor Big ET, at rest and during continuous treadmill exercise at 3 km/h in 16 chronically instrumented swine. In the systemic vasculature, Big ET and ET induced similar changes in hemodynamic parameters at rest and during continuous exercise at 3 km/h, indicating that exercise does not alter ET production or receptor sensitivity in the systemic vasculature. In the coronary vasculature, infusion of ET resulted in similar dose-dependent decreases in coronary blood flow and coronary venous oxygen tension and saturation at rest and during exercise. In contrast, administration of Big ET resulted in dose-dependent decreases in coronary blood flow, as well as coronary venous oxygen tension and saturation at rest. These effects of Big ET were significantly reduced during exercise. Altogether, our data indicate that continuous exercise at 3 km/h attenuates ET-mediated coronary vasoconstriction through reduced production of ET from Big ET rather than through reduced ET sensitivity of the coronary vasculature. The decreased ET production during exercise likely contributes to metabolic coronary vasodilation.

Indexed as

AnimalsCoronary VesselsDose-Response Relationship, DrugEndothelinsHemodynamicsModels, AnimalPhysical Conditioning, AnimalReceptors, EndothelinRegional Blood FlowSwineVasoconstrictionEndothelinsReceptors, Endothelin

Identifiers

PMID21317308
PMCPMC3094093
OpenAlexW2116266881

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.