title: Antinociceptive activity and chemical composition of constituents from Caragana microphylla seeds.
abstract: This investigation was undertaken to ascertain the antinociceptive activity of Caragana microphylla Lam. seeds and isolate and characterize the constituents. Antinociceptive activity was screened using acetic acid-induced abdominal constriction in ICR mice. The 75% ethanol extract and some fractions showed analgesic activity, but the antinociceptive activity of chloroform fraction was the strongest and was more productive than other fractions. Seven compounds were isolated from it and identified as: (1) machaeric acid, (2) beta-sitosterol, (3) stigmasterol, (4) pratol, (5) dehydrocavidine, (6) formononetin and (7) sucrose. Caragana microphylla Lam. seeds showed analgesic activity, with the chloroform fraction showing the strongest analgesic activity among the fractions.
authors.affiliation: Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China.
authors.forename: Y
authors.initials: Y
authors.lastname: Huo
authors.forename: C
authors.initials: C
authors.lastname: Guo
authors.forename: Q-Y
authors.initials: QY
authors.lastname: Zhang
authors.forename: W-S
authors.initials: WS
authors.lastname: Chen
authors.forename: H-C
authors.initials: HC
authors.lastname: Zheng
authors.forename: K
authors.initials: K
authors.lastname: Rahman
authors.forename: L-P
authors.initials: LP
authors.lastname: Qin
mesh_terms: D019342:Acetic Acid; D000284:Administration, Oral; D000700:Analgesics / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D000818:Animals; D032602:Caragana; D004305:Dose-Response Relationship, Drug; D051379:Mice; D008813:Mice, Inbred ICR; D010146:Pain / Q000139:chemically induced / Q000517:prevention & control*; D010147:Pain Measurement / Q000187:drug effects; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D012639:Seeds
chemical_list: D000700:Analgesics; D010936:Plant Extracts; D019342:Acetic Acid