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瓜蒂的药理作用与毒性

ว 2026-09-10 00:18:32ที่ 支点医学(daanjiankang.com)เ admin

瓜蒂主要含葫芦苦素B、D、E,异葫芦苦素B以及α-菠菜甾醇。药理作用:一、保肝作用,葫芦素B、E等对CCl4所致急性和亚急性肝损害有明显保护作用,可明显降低ALT,减轻病变程度,抑制受损肝脏纤维增生。二、增强细胞免疫功能,以瓜蒂散喷鼻,迁延性慢性肝炎患者淋巴细胞转化率明显上升,肝功能逐渐好转黄疸消退。三、抗肿瘤作用,几种葫芦素对人鼻咽癌细胞及子宫颈癌细胞均有细胞毒作用,可用于消化道肿瘤。四、催吐作用,实验动物内服甜瓜素后可致吐,乃甜瓜素刺激胃感觉神经后反射性兴奋呕吐中枢所致。毒性方面,小鼠口服葫芦素B的LD50为14±3.0mg/kg,有报道9克煎服致死者。中毒表现为胃部灼痛、剧烈呕吐,甚者血压下降、呼吸困难、抽搐昏迷,多因呼吸及循环衰竭死亡。使用注意体虚、吐血、咯血及上部无实邪者忌服。

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