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Antifungal activity of extracts and phenolic compounds from Deguelia duckeana
Lima, Nerilson M.; Cursino-Hron, Lorena M.; Lima, Alita M.; Souza, João V.B.; Oliveira, André C. de; Marinho, Jane V.N.; Nunez, Cecilia V..
Afiliación
  • Lima, Nerilson M.; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Bioprospecção e Biotecnologia. Manaus. BR
  • Cursino-Hron, Lorena M.; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Micologia. Manaus. BR
  • Lima, Alita M.; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Micologia. Manaus. BR
  • Souza, João V.B.; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Micologia. Manaus. BR
  • Oliveira, André C. de; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Bioprospecção e Biotecnologia. Manaus. BR
  • Marinho, Jane V.N.; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Bioprospecção e Biotecnologia. Manaus. BR
  • Nunez, Cecilia V.; Instituto Nacional de Pesquisas da Amazônia. Laboratório de Bioprospecção e Biotecnologia. Manaus. BR
Rev. bras. farmacogn ; 28(6): 697-702, Nov.-Dec. 2018. tab, graf
Article en En | LILACS | ID: biblio-977742
Biblioteca responsable: BR1.1
ABSTRACT
ABSTRACT Candida spp. is associated with almost 80% of all nosocomial fungal infections and is considered a major cause of blood stream infections. In humans, Cryptococcosis is a disease of the lungs caused by the fungi Cryptococcus gattii and Cryptococcus neoformans. It can be potentially fatal, especially in immune-compromised patients. In a search for antifungal drugs, Deguelia duckeana extracts were assayed against these two fungi and also against Candida albicans, which causes candidiasis. Hexane branches and CH2Cl2 root extracts as well as the substances 4-hydroxylonchocarpine, 3,5,4′-trimethoxy-4-prenylstilbene and 3′,4′-methylenedioxy-7-methoxyflavone were assayed to determine the minimal inhibitory concentration. Phytochemical study of CH2Cl2 root and hexane branch extracts from D. duckeana A.M.G. Azevedo, Fabaceae, resulted in the isolation and characterization of nine phenolic compounds 4-hydroxyderricine, 4-hydroxylonchocarpine, 3′,4′,7-trimethoxy-flavonol, 5,4′-dihydroxy-isolonchocarpine, 4-hydroxyderricidine, derricidine, 3,5,4′-trimethoxy-stilbene, 3′,4′,7-trimethoxyflavone and yangambin. The only active extract was a CH2Cl2 root showing minimal inhibitory concentration 800 µg/ml against C. gattii, and the investigation of compounds obtained from this extract showed that 4-hydroxylonchocarpine was active against all three fungi (C. neoformans, C. gattii and C. albicans). These results suggest that D. duckeana extracts have potential therapeutic value for the treatment of pathogenic fungi.
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Texto completo: 1 Colección: 01-internacional Base de datos: LILACS Idioma: En Revista: Rev. bras. farmacogn Asunto de la revista: FARMACIA Año: 2018 Tipo del documento: Article / Project document País de afiliación: Brasil Pais de publicación: Brasil

Texto completo: 1 Colección: 01-internacional Base de datos: LILACS Idioma: En Revista: Rev. bras. farmacogn Asunto de la revista: FARMACIA Año: 2018 Tipo del documento: Article / Project document País de afiliación: Brasil Pais de publicación: Brasil