中文同义词:
钩吻素子;阔胺;闊胺;钩吻素子对照品,;钩吻素子(阔胺);KOUMINE 钩吻素子;钩吻碱子;钩吻素子(标准品)
英文同义词:
koumine;(3R,7alpha,20alpha)-1,2,18,19-Tetradehydro-3,17-epoxy-7,20(2H,19H)cyclovobasan;7,20(2H,19H)-Cyclovobasan, 1,2,18,19-tetradehydro-3,17-epoxy-, (3R,7alpha,20alpha)-;6,4-(Epoxymethano)-3,11b-methano-11bH-pyrido[4,3-c]carbazole, 11c-ethenyl-1,2,3,4,4a,5,6,11c-octahydro-2-methyl-, (3S,4S,4aR,6R,11bS,11cS)-
相关类别:
中药对照品;标准品;植物提取物;对照品;植提标准品;标准品-中药标准品;生物碱;chemical reagent;pharmaceutical intermediate;phytochemical;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract;Alkaloids;标准品 -中药标准品;标准品,对照品
沸点
436.5±45.0 °C(Predicted)
酸度系数(pKa)
8.67±0.40(Predicted)
概述
钩吻(Gelsemium elegans Benth.)马钱科胡蔓藤属常绿木质藤本植物,俗称断肠 草、野葛、毒根、大茶药,全株可入药。
药理作用
我国学者对钩吻展开大量研究,钩吻的主要有效成分为吲哚类生物碱,具有抗炎镇痛、抗肿 瘤、抗银屑病、促进禽畜生长等药理作用。钩吻生物碱包括钩吻素子、甲、寅、卯等近百种单体。近年来系列研究发现,钩吻素子具有显著的镇痛、抗焦虑等功效,有良好的产业化药用前景。
生物活性
Koumine 是从钩吻 (Gelsemium elegans) 中得到的生物碱,具有高效抗肿瘤活性,在肿瘤细胞中能够增加 Bax/Bcl-2 的蛋白比例和 caspase-3 的表达。Koumine 具有抗焦虑、抗应激、抗银屑病和镇痛活性。在类风湿性关节炎动物模型中,Koumine 能够预防关节炎的发展。
体外研究
Koumine (0.5, 1 and 2 mg/mL) dose- and time-dependently inhibits the proliferation of MCF-7 cells, with an IC 50 of 124 µg/mL at 72 h. Koumine induces apoptosis, causes cell cycle arrest at G2/M phase.
Koumine (0.5, 1 and 2 mg/mL) up-regulates the Bax/Bcl-2 ratio and caspase-3 expression in a dose-dependent manner in MCF-7 Cells.
Koumine (25, 50, 100, and 200 μM) decreases the protein and mRNA levels of microglia M1 polarization factors in LPS-induced BV2 cells.
体内研究
Koumine is less toxic, with the median lethal dose (LD 50 ) of 300.0 mg/kg on Wistar rats. Koumine (0.6, 3, or 15 mg/kg/per, p.o.) exhibits antirheumatic properties in rats with adjuvant-induced arthritis (AIA) and collagen-induced arthritis (CIA).
Koumine inhibits the increase in cytokines in joint tissue and TNF-α level in serum at 15 mg/kg, and suppresses the increase in the serum level of IL-1β at 3 and 15 mg/kg.
Koumine (0.28, 7 mg/kg, s.c.) significantly reduces neuropathic pain after nerve injury. Koumine suppresses the increased Iba-1 protein level.
化学性质
可溶于丙酮、氯仿、乙醚、苯等有机溶剂,难溶于水。 来源于葫蔓藤科植物葫蔓藤钩吻Gelsemium elegans (Gardn. et Champ.) Benth.
用途
用于含量测定/鉴定/药理实验等。
药理药效:对精神神经、呼吸及心血管系统有一定的刺激兴奋作用,具有用于治疗神经病理性疼痛的潜在价值。