title: Antiinflammatory effects of chiisanoside and chiisanogenin obtained from the leaves of Acanthopanax chiisanensis in the carrageenan- and Freund's complete adjuvant-induced rats.
abstract: To find the antiinflammtory constituents of Acanthopanax chiisanensis (Araliaceae) leaves, phytochemical isolation procedures were performed by activity-guided fractionation in carrageenan- and Freund's complete adjuvant (FCA) reagent-induced rat models, respectively. In the two assay system, the MeOH extract (100 and 250 mg/kg, p.o.) showed significant antiinflammtory effects. Since BuOH extract among the fractionated extracts exhibited the most potent effect, it was subjected to column chromatography to yield a main triterpene glycoside, chiisanoside (1). This compound was hydrolyzed in alkaline solution to find the biological activity of produced aglycone, chiisanogenin (1a). Oral treatment with compounds 1 and 1a produced significant antiinflammtory effects at 10 and 30 mg/kg dose, and 1a was more potent than 1. The antiiflammtory effects of the two compounds were supported by the reduction of carrageenan-induced lipid peroxidation and hydroxy radical in serum. Furthermore, treatment with 1 and 1a significantly reduced rheumatoid arthritis (RA) and C-reactive protein (CRP) factors in the rat induced by Freund's complete adjuvant reagent. Compounds, 1 and 1a, inhibited xanthine oxidase activity and increased superoxide dismutase (SOD), glutathione peroxidase and catalase indicating that both compounds scavenged reactive oxygen species (ROS).
authors.affiliation: Division of Applied Plant Sciences, Sangji University, Woosan-Dong, Wonju 220-702, Korea.
authors.forename: Hyun-Ju
authors.initials: HJ
authors.lastname: Jung
authors.forename: Jung Hwan
authors.initials: JH
authors.lastname: Nam
authors.forename: Jongwon
authors.initials: J
authors.lastname: Choi
authors.forename: Kyung-Tae
authors.initials: KT
authors.lastname: Lee
authors.forename: Hee-Juhn
authors.initials: HJ
authors.lastname: Park
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000302:isolation & purification / Q000627:therapeutic use*; D001169:Arthritis, Experimental / Q000188:drug therapy*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy; D004487:Edema / Q000139:chemically induced / Q000188:drug therapy*; D028001:Eleutherococcus; D004791:Enzyme Inhibitors / Q000302:isolation & purification / Q000627:therapeutic use*; D008297:Male; D008517:Phytotherapy; D018515:Plant Leaves; D051381:Rats; D017207:Rats, Sprague-Dawley; D014969:Xanthine Oxidase / Q000037:antagonists & inhibitors / Q000378:metabolism
chemical_list: D000893:Anti-Inflammatory Agents; D004791:Enzyme Inhibitors; D014969:Xanthine Oxidase