title: Pharmacologically active components of Todopon Puok (Fagraea racemosa), a medicinal plant from Borneo.
abstract: The lignans of (+)-pinoresinol, (+)-epipinoresinol, (+)-lariciresinol and (+)-isolariciresinol together with phenols such as syringaldehyde and 7,8-dihydro-7-oxy-coniferyl alcohol were isolated from Todopon Puok (Fagraea racemosa Jack ex Wall), a medicinal plant from Borneo, using a bioassay of the relaxation effect on norepinephrine (NE)-induced contraction in rat aortic strips. The plant extract also exhibited analgesic properties in the acetic acid-induced writhing and tail pressure tests in mice, with the activity being concentrated in the lignan fraction. (+)-Pinoresinol showed analgesic effect on writhing symptoms in mice which were dose-dependent, and produced local anesthesia in guinea pigs.
authors.affiliation: Faculty of Pharmaceutical Sciences, Chiba University, Japan.
authors.forename: E
authors.initials: E
authors.lastname: Okuyama
authors.forename: K
authors.initials: K
authors.lastname: Suzumura
authors.forename: M
authors.initials: M
authors.lastname: Yamazaki
mesh_terms: D000700:Analgesics / Q000494:pharmacology; D000779:Anesthetics, Local / Q000494:pharmacology; D000818:Animals; D001013:Aorta, Thoracic / Q000187:drug effects; D001893:Borneo; D002851:Chromatography, High Pressure Liquid; D004305:Dose-Response Relationship, Drug; D006168:Guinea Pigs; D066298:In Vitro Techniques; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D009126:Muscle Relaxation / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000187:drug effects*; D010147:Pain Measurement / Q000187:drug effects; D010946:Plants, Medicinal / Q000737:chemistry*; D051381:Rats; D017208:Rats, Wistar; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000700:Analgesics; D000779:Anesthetics, Local; D017705:Lignans