Evidence map›Paper›PMID 26640441›Full record

ArticleFrontiers in physiology2015

Prognostic Value of Troponin I for Infarct Size to Improve Preclinical Myocardial Infarction Small Animal Models.

Aurélien Frobert, Jérémy Valentin, Jean-Luc Magnin, Erwin Riedo, Stéphane Cook, Marie-Noëlle Giraud

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 20% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  14. CD8American journal of physiology. Heart and circulatory physiology · 2019
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  15. Article
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  17. Histological Quantification of Chronic Myocardial Infarct in Rats.Journal of visualized experiments : JoVE · 2016
    Article
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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

6 authors at 2 institutions in 1 country.

Aurélien FrobertCardiology, Department of Medicine, University and Hospital of Fribourg Fribourg, Switzerland.
Jérémy ValentinCardiology, Department of Medicine, University and Hospital of Fribourg Fribourg, Switzerland.
Jean-Luc MagninCentral Laboratory, Hospital Fribourg Fribourg, Switzerland.
Erwin RiedoCentral Laboratory, Hospital Fribourg Fribourg, Switzerland.
Stéphane CookCardiology, Department of Medicine, University and Hospital of Fribourg Fribourg, Switzerland.
Marie-Noëlle GiraudCardiology, Department of Medicine, University and Hospital of Fribourg Fribourg, Switzerland.
University of Fribourg · CHFribourg Development Agency · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledCoronary artery ligations to induce myocardial infarction (MI) in mice and rats are widely used in preclinical investigation. However, myocardial ischemic damage and subsequent infarct size are highly variable. The lack of standardization of the model impairs the probability of effective translation to the clinic. Cardiac Troponin I (cTnI) is a major clinically relevant biomarker.

aimIn the present study, we investigated the prognostic value of cTnI for early estimation of the infarct size. METHODS AND

resultsInfarcts of different sizes were induced in mice and rats by ligation, at a random site, of the coronary artery. Kinetics of the plasma levels of cTnI were measured. Heart function was evaluated by echocardiography, the percentage of infarcted left ventricle and infarct expansion index were assessed from histological section. We observed that plasma cTnI level peaked at 24 h in the infarcted rats and between 24 and 48 h in mice. Sham operated animals had a level of cTnI below 15 ng/mL. Infarct expansion index (EI) assessed 4 weeks after ligation showed a large variation coefficient of 63 and 71% in rats and mice respectively. We showed a significative correlation between cTnI level and the EI demonstrating its predictive value for myocardial injury in small animal models.

conclusionwe demonstrated the importance of cTnI plasma level as a major early marker to assist in the optimal and efficient management of MI in laboratory animals model. The presented results stress the need for comparable biomarkers in the animal model and clinical trials for improved translation.

Indexed as

infarct sizemyocardial infarctionprognostic valuetroponin I

Identifiers

PMID26640441
PMCPMC4661277
OpenAlexW2176898954

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.