title: Bioactive flavonoids from Kaempferia parviflora.
abstract: Nine flavonoids (1-9) have been isolated from Kaempferia parviflora. Among these, 5,7,4'-trimethoxyflavone (8) and 5,7,3',4'-tetramethoxyflavone (9) exhibited antiplasmodial activity against Plasmodium falciparum, with IC50 values of 3.70 and 4.06 microg/ml, respectively. 3,5,7,4'-Tetramethoxyflavone (7) and compound 8 possessed antifungal activity against Candida albicans with respective IC50 values of 39.71 and 17.63 microg/ml, and also showed mild antimycobacterial activity with the minimum inhibitory concentrations (MIC) of 200 and 50 microg/ml, respectively. However, none of the isolated compounds demonstrated cytotoxicity against KB, BC and NCI-H187 cell lines.
authors.affiliation: Faculty of Sciences, Khon Kaen University, Khon Kaen 40002, Thailand. chayen@kku.ac.th
authors.forename: Chavi
authors.initials: C
authors.lastname: Yenjai
authors.forename: Khanchara
authors.initials: K
authors.lastname: Prasanphen
authors.forename: Supawadee
authors.initials: S
authors.lastname: Daodee
authors.forename: Varima
authors.initials: V
authors.lastname: Wongpanich
authors.forename: Prasat
authors.initials: P
authors.lastname: Kittakoop
mesh_terms: D000818:Animals; D000890:Anti-Infective Agents / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D000935:Antifungal Agents / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D000962:Antimalarials / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D002176:Candida albicans / Q000187:drug effects*; D005419:Flavonoids / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D020128:Inhibitory Concentration 50; D008826:Microbial Sensitivity Tests; D009161:Mycobacterium / Q000187:drug effects; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D010963:Plasmodium falciparum / Q000187:drug effects*; D030521:Zingiberaceae
chemical_list: D000890:Anti-Infective Agents; D000935:Antifungal Agents; D000962:Antimalarials; D005419:Flavonoids; D010936:Plant Extracts