title: Bioactivity of crude extracts and some constituents of Blutaparon portulacoides (Amaranthaceae).
abstract: Crude extracts (aerial parts and roots, both dried), methylenedioxyflavonol, and a mixture of acyl steryl glycosides isolated from Blutaparon portulacoides, were assayed for their toxicity against Trypanosoma cruzi trypomastigotes and Leishmania amazonensis amastigotes from axenic cultures. The antimicrobial activity was also investigated, in a screening conducted using fifteen strains of Gram-positive and Gram-negative bacteria, along with the yeasts, Candida albicans and Candida tropicalis. To assess the antibacterial activity of the isolated compounds, the minimum inhibitory concentrations (MICs) were determined. There are no reports of acyl steryl glycosides in the genus Blutaparon and their biological activities are being evaluated for the first time.
authors.affiliation: Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo, Brasil. mjsalvador@bol.com.br
authors.forename: M J
authors.initials: MJ
authors.lastname: Salvador
authors.forename: E O
authors.initials: EO
authors.lastname: Ferreira
authors.forename: E M F
authors.initials: EM
authors.lastname: Pral
authors.forename: S C
authors.initials: SC
authors.lastname: Alfieri
authors.forename: S
authors.initials: S
authors.lastname: Albuquerque
authors.forename: I Y
authors.initials: IY
authors.lastname: Ito
authors.forename: D A
authors.initials: DA
authors.lastname: Dias
mesh_terms: D027703:Amaranthaceae; D000818:Animals; D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000494:pharmacology*; D000981:Antiprotozoal Agents / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002455:Cell Division / Q000187:drug effects; D056890:Eukaryota / Q000187:drug effects; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology*; D005960:Glucosides / Q000737:chemistry / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D010168:Palmitates / Q000737:chemistry / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology*; D018517:Plant Roots / Q000737:chemistry; D018520:Plant Shoots / Q000737:chemistry; D012503:Saponins; D012855:Sitosterols / Q000737:chemistry / Q000494:pharmacology*; D013265:Stigmasterol / Q000031:analogs & derivatives / Q000737:chemistry / Q000494:pharmacology*; D015003:Yeasts / Q000187:drug effects
chemical_list: C405014:3,5,3'-trihydroxy-4'-methoxy-6,7-methylenedioxyflavone; D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000981:Antiprotozoal Agents; D005419:Flavonoids; D005960:Glucosides; D010168:Palmitates; D010936:Plant Extracts; D012503:Saponins; D012855:Sitosterols; C417571:sitosteryl-3-O-glucoside-6'-O-palmitate; C472112:stigmasteryl 3-O-glucoside 6'-O-palmitate; D013265:Stigmasterol