In vitro trypanocidal activity of phenolic derivatives from Peperomia obtusifolia

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorMota, Jonas da Silva-
Autor(es): dc.creatorLeite, Ana Cristina-
Autor(es): dc.creatorBatista Junior, João Marcos-
Autor(es): dc.creatorLópez, Silvia Noelí-
Autor(es): dc.creatorAmbrósio, Daniela Luz-
Autor(es): dc.creatorPasserini, Gabriela Duó-
Autor(es): dc.creatorKato, Massuo Jorge-
Autor(es): dc.creatorBolzani, Vanderlan da Silva-
Autor(es): dc.creatorCicarelli, Regina Maria Barretto-
Autor(es): dc.creatorFurlan, Maysa-
Data de aceite: dc.date.accessioned2026-02-09T12:33:04Z-
Data de disponibilização: dc.date.available2026-02-09T12:33:04Z-
Data de envio: dc.date.issued2017-09-04-
Data de envio: dc.date.issued2017-09-04-
Data de envio: dc.date.issued2009-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/15350-
Fonte completa do material: dc.identifierhttps://www.thieme-connect.com/products/ejournals/abstract/10.1055/s-0029-1185364-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1163559-
Descrição: dc.descriptionThe trypanocidal activity of crude extracts and fractions from the leaves and stems of Peperomia obtusifolia (Piperaceae) was evaluated in vitro against the epimastigote forms of Trypanosoma cruzi. Bioactivity-guided fractionation of the most active extracts afforded seven known compounds, including three chromanes, two furofuran lignans and two flavone C-diglycosides. The most active compounds were the chromanes peperobtusin A and 3,4-dihydro-5-hydroxy-2,7-dimethyl-8-(2′′-methyl-2′′-butenyl)-2-(4′-methyl-1′,3′-pentadienyl)-2H-1-benzopyran-6-carboxylic acid, with IC50 values of 3.1 µM (almost three times more active than the positive control benznidazole, IC50 10.4 µM) and 27.0 µM, respectively. Cytotoxicity assays using peritoneal murine macrophages indicated that the chromanes were not toxic at the level of the IC50 for trypanocidal activity. This is the first report on the trypanocidal activity besides unspecific cytotoxicity of chromanes from Peperomia species. Additionally it represents the first time isolation of 3,4-dihydro-5-hydroxy-2,7-dimethyl-8-(2′′-methyl-2′′-butenyl)-2-(4′-methyl-1′,3′-pentadienyl)-2H-1-benzopyran-6-carboxylic acid from P. obtusifolia.-
Idioma: dc.languageen-
Publicador: dc.publisherThieme-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePlanta Medica-
Palavras-chave: dc.subjectChromanes-
Palavras-chave: dc.subjectPeperomia obtusifolia-
Palavras-chave: dc.subjectPiperaceae-
Palavras-chave: dc.subjectTrypanosoma cruzi-
Título: dc.titleIn vitro trypanocidal activity of phenolic derivatives from Peperomia obtusifolia-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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