复方当归对实验性PTCA后动脉内膜保护作用的扫描电镜观察

被引:7
作者
严四新
王瑞绵
孟扬
李自成
机构
[1] 暨南大学医学院第一附属医院!广州
关键词
血管成形术,经腔,经皮冠状动脉; 内皮,血管/损伤; 当归/药物作用; 兔;
D O I
10.14188/j.1671-8852.2000.01.007
中图分类号
R285 [中药药理学];
学科分类号
摘要
目的 :研究PTCA后防止动脉再狭窄。方法 :用PTCA导管的气囊剥脱兔腹主动脉内皮。损伤后给药组 (6只 ) ,于损伤后立即由PTCA导管注入复方当归液 16ml(2 5 %当归注射液 15ml+ 2 0 %丹参注射液 1ml) ,以后每日经耳静脉注射给药 1次 ,最后 1次给药为取材当日。损伤组 (6只 ) ,于损伤后 ,与损伤后给药组同期注射生理盐水 16ml。两组分别于损伤后 2 4h及 96h取出腹主动脉 ,制作标本 ,供扫描电镜下观察。结果 :气囊已造成兔腹主动脉内皮剥脱。损伤组损伤后 2 4h及 96h时 ,动脉内皮下层的裸露胶原组织上有大量血小板附着。而损伤后给药组于损伤后 2 4h及 96h时 ,血管内皮下层光滑 ,只有极少数血小板附着。结论 :复方当归液具有防止血小板在胶原组织上附着的作用 ,对保护血管内膜 ,防止或降低再狭窄的发生有重要意义
引用
收藏
页码:16 / 18
页数:3
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