Evidence map›Paper›PMID 25319673›Full record

ArticleHeart and vessels2016

Effects of intracoronary melatonin on ischemia-reperfusion injury in ST-elevation myocardial infarction.

Sarah V Ekeløf, Natalie L Halladin, Svend E Jensen, Tomas Zaremba, Jens Aarøe, Benedict Kjærgaard, Carsten W Simonsen, Jacob Rosenberg, Ismail Gögenur

Abstract read
PubMed Publisher
In one paragraph

Article in Heart and vessels, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
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  9. Review
  10. Roles of melatonin and its receptors in cardiac ischemia-reperfusion injury.Cellular and molecular life sciences : CMLS · 2018
    Review
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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

9 authors at 3 institutions in 1 country.

Sarah V EkeløfDepartment of Surgery, Herlev Hospital, Centre for Perioperative Optimization, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark. sarahekeloef@gmail.com.
Natalie L HalladinDepartment of Surgery, Herlev Hospital, Centre for Perioperative Optimization, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark.
Svend E JensenDepartment of Cardiology, Aalborg University Hospital, Hobrovej 18, 9000, Aalborg, Denmark.
Tomas ZarembaDepartment of Cardiology, Aalborg University Hospital, Hobrovej 18, 9000, Aalborg, Denmark.
Jens AarøeDepartment of Cardiology, Aalborg University Hospital, Hobrovej 18, 9000, Aalborg, Denmark.
Benedict KjærgaardDepartment of Cardiothoracic Surgery, Aalborg University Hospital, Hobrovej 18, 9000, Aalborg, Denmark.
Carsten W SimonsenDepartment of Diagnostic Imaging, Aalborg University Hospital, Hobrovej 18, 9000, Aalborg, Denmark.
Jacob RosenbergDepartment of Surgery, Herlev Hospital, Centre for Perioperative Optimization, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark.
Ismail GögenurDepartment of Surgery, Herlev Hospital, Centre for Perioperative Optimization, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark.
Aalborg University Hospital · DKUniversity of Copenhagen · DKHerlev Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acute coronary occlusion is effectively treated by primary percutaneous coronary intervention. However, myocardial ischemia-reperfusion injury is at the moment an unavoidable consequence of the procedure. Oxidative stress is central in the development of ischemia-reperfusion injury. Melatonin, an endogenous hormone, acts through antioxidant mechanisms and could potentially minimize the myocardial injury. The aim of the experimental study was to examine the cardioprotective effects of melatonin in a porcine closed-chest reperfused infarction model. A total of 20 landrace pigs were randomized to a dosage of 200 mg (0.4 mg/mL) melatonin or placebo (saline). The intervention was administered intracoronary and intravenous. Infarct size, area at risk and microvascular obstruction were determined ex vivo by cardiovascular magnetic resonance imaging. Myocardial salvage index was calculated. The plasma levels of high-sensitive troponin T were assessed repeatedly. The experimenters were blinded with regard to treatment regimen. Melatonin did not significantly increase myocardial salvage index compared with placebo [melatonin 21.8% (16.1; 24.8) vs. placebo 20.2% (16.9; 27.0), p = 1.00]. The extent of microvascular obstruction was similar between the groups [melatonin 3.8% (2.7; 7.1) vs. placebo 3.7% (1.3; 7.7), p = 0.96]. The area under the curve for high-sensitive troponin T release was insignificantly reduced by 32% in the melatonin group [AUC melatonin 12,343.9 (6,889.2; 20,147.4) ng h/L vs. AUC placebo 18,285.3 (5,180.4; 23,716.8) ng h/L, p = 0.82]. Combined intracoronary and intravenous treatment with melatonin did not reduce myocardial reperfusion injury. The lack of a positive effect could be due to an ineffective dose of melatonin, a type II error or the timing of administration.

Indexed as

Angioplasty, Balloon, CoronaryAnimalsAntioxidantsDisease Models, AnimalFemaleMagnetic Resonance ImagingMelatoninMyocardial InfarctionMyocardial Reperfusion InjuryMyocardiumOxidative StressRandom AllocationSwineTroponin TAntioxidantsMelatoninTroponin TAcute myocardial infarctionAnimal experimentationAntioxidantOxidative stressReperfusion injury

Identifiers

PMID25319673
OpenAlexW2061462416

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.