title: Trypanocidal activity of Lychnophora staavioides Mart. (Vernonieae, Asteraceae).
abstract: In the continuing search for new compounds with trypanocidal activity for use in blood banks to prevent the transmission of Chagas' disease, a trypanocidal extract of Lychnophora staavioides Mart. (Vernonieae, Asteraceae) was fractionated using several chromatographic techniques and afforded the following flavonoids: tectochrysin, pinostrobin, pinobanksin, pinobanksin 3-acetate, pinocembrin, chrysin, galangin 3-methyl ether, quercetin 3-methyl ether, chrysoeriol and vicenin-2. The most active compound was quercetin 3-methyl ether, which showed no blood lysis activity and which represents a promising compound for use against T. cruzi in blood banks.
mesh_terms: D000818:Animals; D019659:Asteraceae; D001771:Blood Banks; D014355:Chagas Disease / Q000188:drug therapy; D005419:Flavonoids / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D021261:Parasitic Sensitivity Tests; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D018515:Plant Leaves; D014344:Trypanocidal Agents / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D014349:Trypanosoma cruzi / Q000187:drug effects*
chemical_list: D005419:Flavonoids; D010936:Plant Extracts; D014344:Trypanocidal Agents