Evidence map›Paper›PMID 19497439›Full record

ArticleJournal of the American College of Cardiology2009

Local cytokine concentrations and oxygen pressure are related to maturation of the collateral circulation in humans.

Stephan H Schirmer, Niels van Royen, Perry D Moerland, Joost O Fledderus, José P Henriques, René J van der Schaaf, Marije M Vis, Jan Baan, Karel T Koch, Anton J G Horrevoets and 2 more

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of the American College of Cardiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

11 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. The future of collateral artery research.Current cardiology reviews · 2014
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Milieu intérieur: the search for myocardial arteriogenic signals.Journal of the American College of Cardiology · 2009
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Stephan H SchirmerDepartment of Cardiology, Academic Medical Center, University of Amsterdam, the Netherlands.
Niels van Royen
Perry D Moerland
Joost O Fledderus
José P Henriques
René J van der Schaaf
Marije M Vis
Jan Baan
Karel T Koch
Anton J G Horrevoets
Imo E Hoefer
Jan J Piek
Amsterdam UMC Location University of Amsterdam · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesOur aim was to determine cytokine and oxygen gradients over the collateral circulation in humans.

backgroundThe molecular background of the maturation of the collateral circulation in response to coronary narrowing is poorly understood in humans, partly because of difficulties in obtaining local samples from the human collateral circulation.

methodsCoronary collateral blood was sampled in 60 patients with nontotal (n = 25) or total coronary occlusions (n = 35) using a special wide-lumen catheter. Coronary collateral flow index (CFI) was assessed by intracoronary pressure measurements. Oxygenation and lactate content was measured as well as 30 cytokines potentially involved in collateral artery growth, using a custom-made multiplex assay.

resultsNo rise in lactate or change in pH was found in collateral blood. Oxygen gradient between coronary and collateral arterial blood correlated inversely with CFI (r = -0.61, p < 0.001). Locally increased plasma levels were found for basic fibroblast growth factor, eotaxin, macrophage migration inflammatory factor, monocyte chemoattractant protein-1, and transforming growth factor-beta, while stem cell factor and stem cell growth factor-beta were significantly decreased. The highest cytokine gradients were found in patients with the least developed collateral circulation. The majority of cytokines correlated more strongly with the pO(2) gradient across the collateral bed than with CFI.

conclusionsIntravascular ischemia during brief balloon coronary occlusion is absent in human coronary collateral arteries. The oxygen gradient found over the collateral circulation is increased in patients with a less matured collateral circulation and relates to local levels of several known pro-arteriogenic cytokines. In case of a more developed collateral circulation, relatively low levels of cytokines are present, suggesting that growth factor therapy might be beneficial at this stage.

Indexed as

Collateral CirculationCoronary CirculationOxygen ConsumptionAngioplasty, Balloon, CoronaryCytokinesFemaleHemodynamicsHumansIntercellular Signaling Peptides and ProteinsMaleMiddle AgedMyocardial IschemiaOxygenSignal TransductionStatistics as TopicCytokinesIntercellular Signaling Peptides and ProteinsOxygen

Identifiers

PMID19497439
OpenAlexW2117149835

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.