title: Impact of Andrographis paniculata crude extract on mouse hepatic cytochrome P450 enzymes.
abstract: Modulatory influence of Andrographis paniculata crude extract on cytochrome P450 (CYP) enzymes was performed by administration of the crude extract of Andrographis paniculata to ICR male mice. Total hepatic P450 content was not significantly modified by either the aqueous or the alcoholic extracts of Andrographis paniculata. Assessment of hepatic microsomal P450 activities by alkoxyresorufin O-dealkylations noted that both the aqueous and alcoholic extracts of Andrographis paniculata significantly increased ethoxyresorufin O-dealkylase and pentoxyresorufin O-dealkylase activities, while those of methoxyresorufin O-dealkylase activities were not elevated. These results suggested that Andrographis paniculata might effectuate hepatic cytochrome P450 enzymes of which CYP1A1 and CYP2B are the responsive P450 isoforms.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand. kanok_ja@kku.ac.th
authors.forename: Kanokwan
authors.initials: K
authors.lastname: Jarukamjorn
authors.forename: Kannika
authors.initials: K
authors.lastname: Don-in
authors.forename: Cattaleya
authors.initials: C
authors.lastname: Makejaruskul
authors.forename: Thewarach
authors.initials: T
authors.lastname: Laha
authors.forename: Supawadee
authors.initials: S
authors.lastname: Daodee
authors.forename: Pradit
authors.initials: P
authors.lastname: Pearaksa
authors.forename: Bung-orn
authors.initials: BO
authors.lastname: Sripanidkulchai
mesh_terms: D035685:Andrographis; D000818:Animals; D019363:Cytochrome P-450 CYP1A1 / Q000378:metabolism; D019362:Cytochrome P-450 CYP2B1 / Q000378:metabolism; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism*; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D008862:Microsomes, Liver / Q000201:enzymology*; D010936:Plant Extracts / Q000494:pharmacology*
chemical_list: D010936:Plant Extracts; D003577:Cytochrome P-450 Enzyme System; D019363:Cytochrome P-450 CYP1A1; D019362:Cytochrome P-450 CYP2B1