title: Antiprotozoal activity of (8-hydroxymethylen)-trieicosanyl acetate isolated from Senna villosa.
abstract: A white solid compound was isolated from the chloroform extract of the leaves of Senna villosa. The material was identified by (1)H-NMR, (13)C-NMR, IR and EM methods as (8-hydroxymethylen)-trieicosanyl acetate, a new compound with biological activity, which was tested in vitro at concentrations of 1.65, 3.3 and 6.6 microg/ml for inhibition of the growth of Trypanosoma cruzi epimastigotes and tripomastigotes. We observed inhibition of growth at all concentrations tested, and the effect at concentrations of 3.3 and 6.6 microg/ml was greater than that of gentian violet (positive control). At the concentration of 6.6 microg/ml, the compound showed the greatest inhibitory effect against the growth of both forms of the parasite.
authors.affiliation: Departamento de Biomedicina de Enfermedades Infecciosas y Parasitarias, Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán, Mérida, Yucatán, México.
authors.forename: E
authors.initials: E
authors.lastname: Guzmán
authors.forename: C
authors.initials: C
authors.lastname: Pérez
authors.forename: M A
authors.initials: MA
authors.lastname: Zavala
authors.forename: K Y
authors.initials: KY
authors.lastname: Acosta-Viana
authors.forename: S
authors.initials: S
authors.lastname: Pérez
mesh_terms: D000085:Acetates / Q000302:isolation & purification / Q000494:pharmacology*; D000818:Animals; D000981:Antiprotozoal Agents / Q000302:isolation & purification / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D015777:Eicosanoids / Q000302:isolation & purification / Q000494:pharmacology*; D007887:Fabaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D014349:Trypanosoma cruzi / Q000737:chemistry
chemical_list: C534089:(8-hydroxymethylen)trieicosanyl acetate; D000085:Acetates; D000981:Antiprotozoal Agents; D015777:Eicosanoids