Evidence map›Paper›PMID 15793134›Full record

ArticleAntimicrobial agents and chemotherapy2005

Treatment with benznidazole during the chronic phase of experimental Chagas' disease decreases cardiac alterations.

Simone Garcia, Carolina O Ramos, Juliana F V Senra, Fabio Vilas-Boas, Maurício M Rodrigues, Antonio C Campos-de-Carvalho, Ricardo Ribeiro-Dos-Santos, Milena B P Soares

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 2 pooled it
7.2field-weighted citation impact, top 2% 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

84 citing papers in PubMed, 2 syntheses or guidelines pooled it, 257 citations in OpenAlex.

  1. Pooled it
  2. Trypanocidal drugs for chronic asymptomatic Trypanosoma cruzi infection.The Cochrane database of systematic reviews · 2014
    Pooled it
  3. Trial
  4. Trial
  5. Changes in Trypanosoma cruzi-specific immune responses after treatment: surrogate markers of treatment efficacy.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2009
    Trial
  6. Article
  7. Article
  8. Short versus long drug regimens for Chagas disease.The Cochrane database of systematic reviews · 2025
    Article
  9. Galectin-8 deficiency promotes chronic splenomegaly persistence in Chagas disease.Frontiers in cellular and infection microbiology · 2025
    Article
  10. Article
  11. Article
  12. Frontiers in immunology · 2023
    Article
  13. Article
  14. Article
  15. Use ofFrontiers in microbiology · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

24 more citing papers are in PubMed but not listed here.

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

8 authors at 4 institutions in 1 country.

Simone GarciaCentro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Rua Waldemar Falcão, 121, Brotas, Salvador, Brazil CEP 40295-001, Brazil.
Carolina O Ramos
Juliana F V Senra
Fabio Vilas-Boas
Maurício M Rodrigues
Antonio C Campos-de-Carvalho
Ricardo Ribeiro-Dos-Santos
Milena B P Soares
Fundação Oswaldo Cruz · BRHospital Santa Izabel · BRUniversidade Federal de São Paulo · BRUniversidade Federal do Rio de Janeiro · BR

Funding

Stem Cell Based Therapies in Chagasic CardiomyopathyR01HL073732 · NHLBI · YESHIVA UNIVERSITY · PI CAMPOS DE CARVALHO, ANTONIO CARLOS · 2003 to 2011
$3.2M
NHLBI NIH HHS HL073732-01NHLBI NIH HHS R01 HL073732
6 · The paper itself

Abstract

Chagas' disease, caused by Trypanosoma cruzi infection, is one of the main causes of death due to heart failure in Latin American countries. Benznidazole, the chemotherapeutic agent most often used for the treatment of chagasic patients, is highly toxic and has limited efficacy, especially in the chronic phase of the disease. In the present study we used a mouse model of chronic Chagas' disease to investigate the effects of benznidazole treatment during the chronic phase on disease progression. The hearts of benznidazole-treated mice had decreased parasitism and myocarditis compared to the hearts of untreated chagasic mice. Both groups of Trypanosoma cruzi-infected mice had significant alterations in their electrocardiograms compared to those of the healthy mice. However, untreated mice had significantly higher cardiac conduction disturbances than benznidazole-treated mice, including intraventricular conduction disturbances, atrioventricular blocks, and extrasystoles. The levels of antibodies against T. cruzi antigens (epimastigote extract, P2beta, and trans-sialidase) as well as antibodies against peptides of the second extracellular loops of beta1-adrenergic and M2-muscarinic cardiac receptors were also lower in the sera from benznidazole-treated mice than in the sera from untreated mice. These results demonstrate that treatment with benznidazole in the chronic phase of infection prevents the development of severe chronic cardiomyopathy, despite the lack of complete parasite eradication. In addition, our data highlight the role of parasite persistence in the development of chronic Chagas' disease and reinforce the importance of T. cruzi elimination in order to decrease or prevent the development of severe chagasic cardiomyopathy.

Indexed as

AnimalsChagas CardiomyopathyChagas DiseaseChronic DiseaseHeartHumansMaleMiceMice, Inbred BALB CMyocarditisNitroimidazolesTrypanocidal AgentsTrypanosoma cruzibenzonidazoleNitroimidazolesTrypanocidal Agents

Identifiers

PMID15793134
PMCPMC1068607
OpenAlexW2129612930

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.