Evidence map›Paper›PMID 23939901›Full record

ArticleAntimicrobial agents and chemotherapy2013

Activities of psilostachyin A and cynaropicrin against Trypanosoma cruzi in vitro and in vivo.

Cristiane França da Silva, Denise da Gama Jaen Batista, Julianna Siciliano De Araújo, Marcos Meuser Batista, Jessica Lionel, Elen Mello de Souza, Erica Ripoll Hammer, Patricia Bernardino da Silva, Maria De Mieri, Michael Adams and 5 more

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 39 citations in OpenAlex.

  1. Anti-Pharmaceutics · 2023
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  10. Anti-Iranian journal of pharmaceutical research : IJPR · 2019
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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

15 authors at 4 institutions in 3 countries.

Cristiane França da SilvaLaboratório de Biologia Celular, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil.
Denise da Gama Jaen Batista
Julianna Siciliano De Araújo
Marcos Meuser Batista
Jessica Lionel
Elen Mello de Souza
Erica Ripoll Hammer
Patricia Bernardino da Silva
Maria De Mieri
Michael Adams
Stefanie Zimmermann
Matthias Hamburger
Reto Brun
Wolfgang Schühly
Maria de Nazaré Correia Soeiro
Fundação Oswaldo Cruz · BRUniversity of Basel · CHSwiss Tropical and Public Health Institute · CHUniversity of Graz · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In vitro and in vivo activities against Trypanosoma cruzi were evaluated for two sesquiterpene lactones: psilostachyin A and cynaropicrin. Cynaropicrin had previously been shown to potently inhibit African trypanosomes in vivo, and psilostachyin A had been reported to show in vivo effects against T. cruzi, albeit in another test design. In vitro data showed that cynaropicrin was more effective than psilostachyin A. Ultrastructural alterations induced by cynaropicrin included shedding events, detachment of large portions of the plasma membrane, and vesicular bodies and large vacuoles containing membranous structures, suggestive of parasite autophagy. Acute toxicity studies showed that one of two mice died at a cynaropicrin dose of 400 mg/kg of body weight given intraperitoneally (i.p.). Although no major plasma biochemical alterations could be detected, histopathology demonstrated that the liver was the most affected organ in cynaropicrin-treated animals. Although cynaropicrin was as effective as benznidazole against trypomastigotes in vitro, the treatment (once or twice a day) of T. cruzi-infected mice (up to 50 mg/kg/day cynaropicrin) did not suppress parasitemia or protect against mortality induced by the Y and Colombiana strains. Psilostachyin A (0.5 to 50 mg/kg/day given once a day) was not effective in the acute model of T. cruzi infection (Y strain), reaching 100% animal mortality. Our data demonstrate that although it is very promising against African trypanosomes, cynaropicrin does not show efficacy compared to benznidazole in acute mouse models of T. cruzi infection.

Indexed as

AnimalsAutophagyCell MembraneChagas DiseaseLactonesLiverMaleMiceMicroscopy, Electron, TransmissionNitroimidazolesParasitic Sensitivity TestsSesquiterpenesSurvival AnalysisTreatment FailureTrypanocidal AgentsTrypanosoma cruzibenzonidazolecynaropicrinLactonesNitroimidazolespsilostachyin ASesquiterpenesTrypanocidal Agents

Identifiers

PMID23939901
PMCPMC3811247
OpenAlexW2169982530

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.