title: Antiinflammatory constituents from the roots of Smilax bockii warb.
abstract: From 70% ethanol extract of the roots of Smilax bockii warb., seven flavonoids, kaempferol (1), kaempferol-7-O-beta-D-glucopyranoside (2), quercetin (3), isorhamnetin (4), (+)-dihydro-kaempferol (5), engeletin (6), isoengeletin (7), and n-butyl-beta-D-fructopyranoside (8), caffeic acid n-butyl ester (9) were isolated and identified by means of chemical and spectroscopic. Compounds 2, 4, and 6-9 were isolated for the first time from the roots of S. bockii and compounds 2, 8, and 9 were firstly isolated from the genus Smilax. In addition, using the SEAP (Secreted alkaline phosphatase) assay system, we investigated the in vitro anti-inflammatory activity of the 70% ethanol extract of the roots of S. bockii, which showed moderate activity in inhibiting TNF-alpha-induced NF-kappaB activation with an IC50 value of 166.6 microg/mL.
authors.affiliation: Research Department of Natural Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: Xian
authors.initials: X
authors.lastname: Li
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Zhan-Lin
authors.initials: ZL
authors.lastname: Li
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000302:isolation & purification* / Q000494:pharmacology; D002460:Cell Line; D005419:Flavonoids / Q000302:isolation & purification* / Q000494:pharmacology; D008264:Macrophages / Q000187:drug effects* / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D015394:Molecular Structure; D016328:NF-kappa B / Q000037:antagonists & inhibitors; D018517:Plant Roots / Q000737:chemistry; D032281:Smilax / Q000737:chemistry*; D013329:Structure-Activity Relationship; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology
chemical_list: D000893:Anti-Inflammatory Agents; D005419:Flavonoids; D016328:NF-kappa B; D014409:Tumor Necrosis Factor-alpha