Evidence map›Paper›PMID 18224488›Full record

ArticleParasitology research2008

The toxic effects of piperine against Trypanosoma cruzi: ultrastructural alterations and reversible blockage of cytokinesis in epimastigote forms.

Leonardo Freire-de-Lima, Tatiana Santana Ribeiro, Gustavo Miranda Rocha, Bruno Alves Brandão, Alexandre Romeiro, Lucia Mendonça-Previato, José Osvaldo Previato, Marco Edilson Freire de Lima, Técia Maria Ulisses de Carvalho, Norton Heise

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Article in Parasitology research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 38 citations in OpenAlex.

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  5. In vitro anti-parasitic effect of the alkaloids harmaline and piperine on Toxoplasma gondii.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2024
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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

10 authors at 2 institutions in 1 country.

Leonardo Freire-de-LimaLaboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ 21941-902, Brazil.
Tatiana Santana Ribeiro
Gustavo Miranda Rocha
Bruno Alves Brandão
Alexandre Romeiro
Lucia Mendonça-Previato
José Osvaldo Previato
Marco Edilson Freire de Lima
Técia Maria Ulisses de Carvalho
Norton Heise
Universidade Federal do Rio de Janeiro · BRUniversidade Federal Rural do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In a previous work, we have investigated the effects of piperine and several of its chemical derivatives on the proliferation of the protozoan parasite Trypanosoma cruzi. It was observed that natural piperine is more active against intracellular amastigotes than axenically grown epimastigotes with IC50 values of 4.91 and 7.36 microM, respectively. Despite its superior trypanocidal activity against the intracellular amastigotes, here, we show that piperine did not enhance microbiocidal characteristics of murine peritoneal macrophages (Mø) based on nitric oxide production. As shown by light and electron microscopy analysis, epimastigotes treated with sublethal concentrations of piperine presented a reversible cell cycle arrestment and become round shaped, with swelling of the mitochondrion matrix and intense intracellular vacuolization with structures displaying complex membrane invaginations. Similar to the effects of exposing epimastigotes to the antitumor and microtubule stabilizer taxol, multiplication of cell organelles such as the flagellum, kinetoplast, and nucleus occurred, but division into daughter cells was impaired. Unlike the effects caused by the anti-microtubular vinca alkaloids vincristine and vinblastine, which also induce cytokinesis arrestment in T. cruzi epimastigotes, piperine did not induce the formation of giant multinucleated cells. The data reinforce the selectivity of the mechanisms of action of piperine against T. cruzi.

Indexed as

AlkaloidsAnimalsBenzodioxolesCells, CulturedCytokinesisMacrophages, PeritonealMiceMice, Inbred BALB CMicroscopy, ElectronNitric OxideParasitic Sensitivity TestsPiperidinesPolyunsaturated AlkamidesTrypanocidal AgentsTrypanosoma cruziAlkaloidsBenzodioxolesNitric OxidePiperidinespiperinePolyunsaturated AlkamidesTrypanocidal Agents

Identifiers

PMID18224488
OpenAlexW2031278344

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.