4种山楂属植物的药理作用及其LD＿（50）比较

Comparisons of Pharmacologlcal Effect and LD_(50) among Four Kinds of Hawthorn Fruit

对４种山楂属植物山里红、山楂、野山楂和云南山楂进行动物小肠推进运动、抗心肌缺血、降血清总胆固醇作用及ＬＤ＿（５０）比较。发现山楂的品种不同，其药效学作用也不尽相同。

our kinds of Hawthorn Fruit, namely Large Chinese Hawthorm, Chinese Hawthorn,Nippon Hawthorn andYunnan Hawthorn,were compared in animal experiments. Their effects on small intestine motion,myocardial is-chemia and hypercholesterolemia have been found different from each other.