Evidence map›Paper›PMID 32074167›Full record

ArticleMemorias do Instituto Oswaldo Cruz2020

Antiparasitic and anti-inflammatory activities of ß-lapachone-derived naphthoimidazoles in experimental acute Trypanosoma cruzi infection.

Cynthia M Cascabulho, Marcelo Meuser-Batista, Kelly Cristina G de Moura, Maria do Carmo Pinto, Thabata Lopes Alberto Duque, Kelly C Demarque, Ana Carolina Ramos Guimarães, Pedro Paulo de Abreu Manso, Marcelo Pelajo-Machado, Gabriel M Oliveira and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Memorias do Instituto Oswaldo Cruz, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.0field-weighted citation impact, top 17% 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

7 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Article
  3. Trypanocidal Activity of Dual Redox-Active Quinones:Pathogens (Basel, Switzerland) · 2025
    Article
  4. Review
  5. The evaluation ofJournal of drug delivery science and technology · 2023
    Article
  6. Article
  7. Article
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

12 authors at 2 institutions in 1 country.

Cynthia M CascabulhoFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Inovações em Terapias, Ensino e Bioprodutos, Rio de Janeiro, RJ, Brasil.
Marcelo Meuser-BatistaFundação Oswaldo Cruz-Fiocruz, Instituto Fernandes Figueira, Departamento de Anatomia Patológica e Citopatologia, Laboratório de Patologia Molecular, Rio de Janeiro, RJ, Brasil.
Kelly Cristina G de MouraUniversidade Federal do Rio de Janeiro, Instituto de Pesquisa em Produtos Naturais, Rio de Janeiro, RJ, Brasil.
Maria do Carmo PintoUniversidade Federal do Rio de Janeiro, Instituto de Pesquisa em Produtos Naturais, Rio de Janeiro, RJ, Brasil.
Thabata Lopes Alberto DuqueFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Celular, Rio de Janeiro, RJ, Brasil.
Kelly C DemarqueFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Celular, Rio de Janeiro, RJ, Brasil.
Ana Carolina Ramos GuimarãesFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Genômica Funcional e Bioinformática, Rio de Janeiro, RJ, Brasil.
Pedro Paulo de Abreu MansoFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Patologia, Rio de Janeiro, RJ, Brasil.
Marcelo Pelajo-MachadoFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Patologia, Rio de Janeiro, RJ, Brasil.
Gabriel M OliveiraFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Celular, Rio de Janeiro, RJ, Brasil.
Solange L De CastroFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Celular, Rio de Janeiro, RJ, Brasil.
Rubem Fs Menna-BarretoFundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Celular, Rio de Janeiro, RJ, Brasil.ORCID http://orcid.org/0000-0002-1352-0641
Fundação Oswaldo Cruz · BRUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChagas disease, which is caused by the protozoan Trypanosoma cruzi, is endemic to Latin America and mainly affects low-income populations. Chemotherapy is based on two nitrocompounds, but their reduced efficacy encourages the continuous search for alternative drugs. Our group has characterised the trypanocidal effect of naphthoquinones and their derivatives, with naphthoimidazoles derived from β-lapachone (N1, N2 and N3) being the most active in vitro.

objectivesIn the present work, the effects of N1, N2 and N3 on acutely infected mice were investigated.

methodsin vivo activity of the compounds was assessed by parasitological, biochemical, histopathological, immunophenotypical, electrocardiographic (ECG) and behavioral analyses.

findingsNaphthoimidazoles led to a decrease in parasitaemia (8 dpi) by reducing the number of bloodstream trypomastigotes by 25-50% but not by reducing mortality. N1 protected mice from heart injury (15 dpi) by decreasing inflammation. Bradycardia was also partially reversed after treatment with N1 and N2. Furthermore, the three compounds did not reverse hepatic and renal lesions or promote the improvement of other evaluated parameters. MAIN

conclusionN1 showed moderate trypanocidal and promising immunomodulatory activities, and its use in combination with benznidazole and/or anti-arrhythmic drugs as well as the efficacy of its alternative formulations must be investigated in the near future.

Indexed as

Acute DiseaseAnimalsAnti-Inflammatory AgentsChagas DiseaseDisease Models, AnimalElectrocardiographyMaleMiceNaphthoquinonesNitroimidazolesParasitemiaTime FactorsTrypanocidal AgentsAnti-Inflammatory Agentsbenzonidazolebeta-lapachoneNaphthoquinonesNitroimidazolesTrypanocidal Agents

Identifiers

PMID32074167
PMCPMC7029714
OpenAlexW3006122701

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.