研究了白花曼陀罗(Datura metel)叶和根提取物,对离体大鼠子宫和直肠平滑肌收缩力的影响,并与东莨菪碱和乙酰胆碱进行了比较。考察根提取物是否能对大鼠子宫和直肠平滑肌标本引起同样的致痉作用。材料制备:将阴干后的白花曼陀罗叶粉碎,取5g粉末置于研钵中,用研棒研磨制备5％的水提取物,并悬浮在重蒸馏水中,提取物过滤后待用。采用同样的方法,将白花曼陀罗新鲜根制成20％的水提取物,提取物过滤后待 The effects of Datura metel leaves and root extracts on the contractile force of isolated rat uterus and rectal smooth muscle were studied, and compared with scopolamine and acetylcholine. Examine whether the root extract can induce the same cariogenic effects on rat uterus and rectal smooth muscle specimens. Material preparation: After the dried Datura stramonium leaves were crushed, 5 g of the powder was placed in a mortar and pestle, ground to prepare a 5% water extract, and suspended in double distilled water. The extract was filtered and used. In the same way, the fresh root of Datura stramonium was made into a 20% water extract, and the extract was filtered and treated