麝香保心丸对心肌梗死大鼠梗死面积和血管新生的作用

Effect of decreasing infarct area and stimulating angiogenesis of Shexiangbaoxin Pills in rat with coronary occlusion

目的 :探讨麝香保心丸对心肌梗死大鼠梗死面积和血管新生的作用。方法 :以 6 2只♂SD大鼠为研究对象 ,结扎左冠状动脉造成急性心肌梗死模型 ,分为小剂量麝香保心丸组、大剂量麝香保心丸组、贝复济和肝素组 (阳性对照 )、生理盐水组 (模型组 )、假手术组和正常对照组 ,分别干预 8周后 ,检测梗死面积和梗死边缘区心肌的血管面密度。结果 :大小剂量麝香保心丸均能显著降低梗死面积 ,小剂量与阳性药物差异无显著性 ,大剂量优于阳性药物 ,有量效关系。小剂量麝香保心丸与阳性药物相比血管面密度差异有显著性 ,但大剂量麝香保心丸与阳性对照药物间比较血管面密度差异无显著性 ,麝香保心丸对血管面密度的影响有量效关系。结论 :大小剂量麝香保心丸均有降低梗死面积的作用 ,降低梗死面积存在量效关系。小剂量麝香保心丸促血管新生作用不明显 ,而大剂量麝香保心丸促进血管新生作用与阳性对照药物作用相似。

AIM: The effect of decreasing infarct area and stimulating angiogenesis of Shexiangbaoxin Pills in rat with coronary occlusion were studied. METHODS: 44 rats with ligation of the left coronary artery were randomly divided into 4 roups:11 rats were treated with small dose Shexiangbaoxin Pills (group 1), 11 rats were treated with high dose Shexiangbaoxin Pills (group 2), 11 rats were treated with Beifuji and heparin (group 3), 11 rats were treated with 0.9% normal saline (group 4). 18 rats were randomly divided into 2 control groups:10 sham operated rats (group 5) and 8 normal rats (group 6). Infarct area and vascular density in the edge of infarct section were measured after treating for 8 weeks. RESULTS: Infarct area in group 1,2 and 3 was obviously less than that in group 4. The difference was not significant between group 1 and group 3 but group 2 was better than group 3. The difference was significant between group 1 and group 2. The vascular density in group 1,2 and 3 were significanly increased in comparison with those in group 4. The difference was not significant between group 2 with 3. CONCLUSION: Shexiangbaoxin Pills could decrease infarct area and stimulate angiogenesis of the experimental myocardial infarction rat. The effect of Shexiangbaoxin Pills was equal to the group treated with Beifuji and heparin. Shexiangbaoxin Pills had a dose response relationship.