苍耳子4种提取物小鼠急性毒性比较研究

目的:研究苍耳子生品和炒品的水提、醇提4种提取物对小鼠的急性毒性。方法:观察小鼠灌胃给药后的毒性反应,并计算半数致死量(LD50)。结果:苍耳子水提取物组毒性反应为静卧、竖毛、尾足发绀、震颤、呼吸抑制、间歇性惊厥、翻正反射消失、后腿抽搐等,乙醇提取物组则表现为静卧、腹式呼吸、部分竖毛、震颤、严重间歇性惊厥、跳跃、后腿抽搐,部分动物出现大小便失禁等。苍耳子炒品水提取物、炒品乙醇提取物、生品水提取物、生品乙醇提取物的小鼠灌胃给药的LD50分别为生药155.93,317.80,167.60,275.41 g.kg-1。结论:苍耳子水提取物的急性毒性明显大于乙醇提取物,而炒品和生品的毒性差异不明显。

Comparative study on acute toxicity of four extracts from Xanthii Fructus in mice

Objective : To comparative study the acute toxicity of four extracts from Xanthii Fructus in mice. Method : Observed the toxic manifestations in mice which were given the four extracts by intragastric administration and calculated the LD₅₀ of the four extracts from Xanthii Fructus. Result : The toxic manifestations of the mice given water extract by intragastric administration were repose, pilo-erection, cyanosis, intention tremor, respiratory inhibition, loss of righting reflex and convulsion . The toxic manifestations of the mice given ethanol extract by intragastric administration were repose, abdominal respiration. intention tremor, intermittent convulsions, incontinence .The LD₅₀ of Xanthii Fructus processed water extract, processed ethanol extract, crude water extract, crude ethanol extract were material drug 155.93, 317.80, 167.6, 275.41 g·kg^-1, respectively. Conclusion : The acute toxicity of water extract is distinctly stronger than that of ethanol extract, but there is no marked distinguish between crude and processed extract.