Evidence map›Paper›PMID 25275382›Full record

ArticlePLoS neglected tropical diseases2014

Biomarkers in Trypanosoma cruzi-infected and uninfected individuals with varying severity of cardiomyopathy in Santa Cruz, Bolivia.

Emi E Okamoto, Jacqueline E Sherbuk, Eva H Clark, Morgan A Marks, Omar Gandarilla, Gerson Galdos-Cardenas, Angel Vasquez-Villar, Jeong Choi, Thomas C Crawford, Rose Q Do and 7 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2014. 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 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. ClinicalbioRxiv : the preprint server for biology · 2025
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  9. Persistent biofluid small molecule alterations induced bybioRxiv : the preprint server for biology · 2023
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  17. Article
  18. Severity of Chagasic Cardiomyopathy Is Associated With Response to a Novel Rapid Diagnostic Test for Trypanosoma cruzi TcII/V/VI.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
    Q, Rose [corrected to Do, Rose Q]
5 · Who and what money

Authors and funding

17 authors at 9 institutions in 2 countries.

Emi E OkamotoNew York University School of Medicine, New York, New York, United States of America.
Jacqueline E SherbukNew York University School of Medicine, New York, New York, United States of America.
Eva H ClarkBaylor College of Medicine, Houston, Texas, United States of America.
Morgan A MarksJohns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America.
Omar GandarillaBeth Israel Deaconess, Boston, Massachusetts, United States of America.
Gerson Galdos-CardenasJohns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America.
Angel Vasquez-VillarHospital Nacional Guillermo Almenara Ingoyen, EsSalud, Lima, Peru.
Jeong ChoiJohns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America.
Thomas C CrawfordUniversity of Michigan School of Medicine, Ann Arbor, Michigan, United States of America.
Rose Q Do
Rose QVA Medical Center and University of Colorado School of Medicine, Denver, Colorado, United States of America.
Antonio B FernandezHartford Hospital, Hartford, Connecticut, United States of America.
Rony ColanziUniversidad Catolica Boliviana, Santa Cruz, Plurinational State of Bolivia.
Jorge Luis Flores-FrancoUniversidad Catolica Boliviana, Santa Cruz, Plurinational State of Bolivia.
Robert H GilmanJohns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America.
Caryn BernUniversity of California San Francisco, San Francisco, California, United States of America.
Chagas Disease Working Group in Bolivia and Peru
Johns Hopkins University · USNew York University · USBaylor College of Medicine · USDenver VA Medical Center · USHarvard University Press · USHospital Base Guillermo Almenara Irigoyen · PEInstitute for Community Living · USUniversity of California, San Francisco · USUniversity of Michigan–Ann Arbor · US

Funding

Infectious Diseases Training Program in PeruD43TW006581 · FIC · JOHNS HOPKINS UNIVERSITY · PI GILMAN, ROBERT H · 2003 to 2012
$2.4M
FIC NIH HHS D43 TW006581Medical Research Council MR/K007467/1
6 · The paper itself

Abstract

backgroundTwenty to thirty percent of persons with Trypanosoma cruzi infection eventually develop cardiomyopathy. If an early indicator were to be identified and validated in longitudinal studies, this could enable treatment to be prioritized for those at highest risk. We evaluated cardiac and extracellular matrix remodeling markers across cardiac stages in T. cruzi infected (Tc+) and uninfected (Tc-) individuals.

methodsParticipants were recruited in a public hospital in Santa Cruz, Bolivia and assigned cardiac severity stages by electrocardiogram and echocardiogram. BNP, NTproBNP, CKMB, troponin I, MMP-2, MMP-9, TIMP-1, TIMP-2, TGFb1, and TGFb2 were measured in specimens from 265 individuals using multiplex bead systems. Biomarker levels were compared between Tc+ and Tc- groups, and across cardiac stages. Receivers operating characteristic (ROC) curves were created; for markers with area under curve>0.60, logistic regression was performed.

resultsAnalyses stratified by cardiac stage showed no significant differences in biomarker levels by Tc infection status. Among Tc+ individuals, those with cardiac insufficiency had higher levels of BNP, NTproBNP, troponin I, MMP-2, TIMP-1, and TIMP-2 than those with normal ejection fraction and left ventricular diameter. No individual marker distinguished between the two earliest Tc+ stages, but in ROC-based analyses, MMP-2/MMP-9 ratio was significantly higher in those with than those without ECG abnormalities.

conclusionsBNP, NTproBNP, troponin I, MMP-2, TIMP-1, and TIMP-2 levels rose with increasing severity stage but did not distinguish between Chagas cardiomyopathy and other cardiomyopathies. Among Tc+ individuals without cardiac insufficiency, only the MMP-2/MMP-9 ratio differed between those with and without ECG changes.

Indexed as

AdultAgedBiomarkersBoliviaCardiomyopathiesChagas CardiomyopathyElectrocardiographyFemaleHumansMaleMatrix Metalloproteinase 9Middle AgedNatriuretic Peptide, BrainPeptide FragmentsROC CurveTissue Inhibitor of Metalloproteinase-1BiomarkersMatrix Metalloproteinase 9Natriuretic Peptide, BrainPeptide Fragmentspro-brain natriuretic peptide (1-76)TIMP1 protein, humanTIMP2 protein, humanTissue Inhibitor of Metalloproteinase-1Tissue Inhibitor of Metalloproteinase-2

Identifiers

PMID25275382
PMCPMC4183477
OpenAlexW2003797500

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.