title: Anti-lipid peroxidative principles from the stem bark of Kalopanax pictus Nakai.
abstract: Hepatic lipid peroxide contents were examined in bromobenzene-treated rats firstly after the oral administration of MeOH extract of Kalopanax pictus stem barks, its n-BuOH fraction, EtOAc fraction and an alkaline hydrolysate of the n-BuOH fraction, and secondly after the intraperitoneal administration of hederagenin monodesmosides and bisdesmosides. Two hederagenin monodesmosides, kalopanaxsaponin A (KPS-A) and sapindoside C, exhibited significant anti-lipid peroxidation effects after intraperitoneal administration at doses of 10-30 micromole/kg, whereas their bisdesmosides did not exhibit any significant activity. These results suggest that it is the hederagenin monodesmosides that are responsible for anti-lipid peroxidation in vivo. The activity of KPS-A was established by the observation of decreased aminopyrine N-demethylase activity and increased epoxide hydrolase activity.
authors.affiliation: College of Pharmacy, Kyungsung University, Pusan, Korea.
authors.forename: L
authors.initials: L
authors.lastname: Choi
authors.forename: Y N
authors.initials: YN
authors.lastname: Han
authors.forename: K T
authors.initials: KT
authors.lastname: Lee
authors.forename: K Y
authors.initials: KY
authors.lastname: Park
authors.forename: T S
authors.initials: TS
authors.lastname: Kwak
authors.forename: S H
authors.initials: SH
authors.lastname: Kwon
authors.forename: H L
authors.initials: HL
authors.lastname: Park
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000302:isolation & purification* / Q000494:pharmacology; D027481:Araliaceae / Q000737:chemistry*; D015227:Lipid Peroxidation / Q000187:drug effects*; D008297:Male; D010946:Plants, Medicinal / Q000737:chemistry*; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D000975:Antioxidants