Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/15597
Title: Antifungal activity of extracts and phenolic compounds from Deguelia duckeana
Authors: Lima, Nerilson M.
Cursino-Hron, Lorena M.
Lima, Alita Moura
Souza, João Vicente Braga de
Oliveira, André C. de
Marinho, Jane Vasconcelos N.
Nunez, C. V.
Keywords: 3,4 Methylenedioxy 7 Methoxyflavone
3,4,7 Trimethoxy Flavonol
3,4,7 Trimethoxyflavone
3,5,4 Trimethoxy 4 Prenylstilbene
3,5,4 Trimethoxy Stilbene
4 Hydroxyderricidine
4 Hydroxyderricine
4 Hydroxylonchocarpine
5,4 Dihydroxy Isolonchocarpine
Chalcone Derivative
Deguelia Duckeana Extract
Derricidine
Flavone Derivative
Flavonoid
Plant Extract
Plant Medicinal Product
Unclassified Drug
Yangambin
Anti-fungal Activity
Carbon Nuclear Magnetic Resonance
Cryptococcus Gattii
Cryptococcus Neoformans
Cytotoxicity
Deguelia Duckeana
Liquid Chromatography-mass Spectrometry
Minimum Inhibitory Concentration
Nonhuman
Phytochemistry
Proton Nuclear Magnetic Resonance
Issue Date: 2018
metadata.dc.publisher.journal: Brazilian Journal of Pharmacognosy
metadata.dc.relation.ispartof: Volume 28, Número 6, Pags. 697-702
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. © 2018 Sociedade Brasileira de Farmacognosia
metadata.dc.identifier.doi: 10.1016/j.bjp.2018.08.004
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