title: Biological activity of Guatteria cardoniana fractions.
abstract: Methanolic extract of leaves and twigs of Guatteria cardoniana R.E. Fries (Annonaceae), a plant from the Venezuelan rain forest, was separated in alkaloid rich fractions and their biological effect on baby hamster kidney (BHK) cell line was studied. The initial plant extract (FA) induced cell proliferation, cytotoxicity as well as antiviral activity, depending on the concentration used. Further separation of this methanolic extract allowed us to separate these biological activities. The fraction with the highest antiviral activity (F7) was chromatographed and three of the nine alkaloid-rich fractions obtained, retained this activity. One of them (F(7)11) exhibited the highest inhibitory effect against a neurotropic Sindbis virus (NSV).
authors.affiliation: Laboratorio de Leprología y Patología Experimental, Instituto de Biomedicina, Facultad de Medicina, Universidad Central de Venezuela, 1010A, Caracas, Venezuela.
authors.forename: A
authors.initials: A
authors.lastname: Paredes
authors.forename: M
authors.initials: M
authors.lastname: Hasegawa
authors.forename: F
authors.initials: F
authors.lastname: Prieto
authors.forename: J
authors.initials: J
authors.lastname: Mendez
authors.forename: M
authors.initials: M
authors.lastname: Rodríguez
authors.forename: M
authors.initials: M
authors.lastname: Rodríguez-Ortega
mesh_terms: D000818:Animals; D000998:Antiviral Agents / Q000302:isolation & purification / Q000494:pharmacology*; D002478:Cells, Cultured; D006224:Cricetinae; D007668:Kidney / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology*; D012845:Sindbis Virus / Q000187:drug effects; D014687:Venezuela
chemical_list: D000998:Antiviral Agents; D010936:Plant Extracts