title: Strong antinociceptive effect of incarvillateine, a novel monoterpene alkaloid from Incarvillea sinensis.
abstract: Incarvillea sinensis is a wild plant distributed in northern China. The dried whole plant has been traditionally used to treat rheumatism and relieve pain as an ancient Chinese crude drug. To investigate its antinociceptive activity, we evaluated several fractions derived from the methanolic extract of Incarvillea sinensis in the formalin-induced pain model in mice. Incarvillateine, a novel monoterpene alkaloid, has been found to show significant antinociceptive activity. Here we report the antinociceptive activity of incarvillateine and compare its activity with that of morphine. Additionally, we suggest that its action may be related to influence on the central opioid pathways.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Kumamoto 862, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Nakamura
authors.forename: Y M
authors.initials: YM
authors.lastname: Chi
authors.forename: W M
authors.initials: WM
authors.lastname: Yan
authors.forename: Y
authors.initials: Y
authors.lastname: Nakasugi
authors.forename: T
authors.initials: T
authors.lastname: Yoshizawa
authors.forename: N
authors.initials: N
authors.lastname: Irino
authors.forename: F
authors.initials: F
authors.lastname: Hashimoto
authors.forename: J
authors.initials: J
authors.lastname: Kinjo
authors.forename: T
authors.initials: T
authors.lastname: Nohara
authors.forename: S
authors.initials: S
authors.lastname: Sakurada
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D018712:Analgesics, Non-Narcotic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D000818:Animals; D018360:Crystallography, X-Ray; D008297:Male; D008516:Medicine, Chinese Traditional; D051379:Mice; D015394:Molecular Structure; D039821:Monoterpenes; D010946:Plants, Medicinal / Q000737:chemistry*; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*
chemical_list: D000470:Alkaloids; D018712:Analgesics, Non-Narcotic; D039821:Monoterpenes; D013729:Terpenes; C400141:incarvillateine