苯那普利对阿霉素肾病大鼠系膜基质的影响

被引:28
作者
李学旺
吕向化
宋红梅
黄利伟
机构
[1] 中国协和医科大学北京协和医院肾内科!北京
关键词
血管紧张素转换酶抑制剂; 阿霉素肾病; 系膜基质;
D O I
暂无
中图分类号
R965 [实验药理学];
学科分类号
100602 ; 100706 ;
摘要
目的探讨苯那普利对正常大鼠、阿霉素肾病大鼠尿蛋白排出量、肾功能的影响以及对系膜细胞增殖、系膜基质成分合成的作用。方法对正常及阿霉素肾病大鼠分别注射苯那普利、强的松、苯磺酸氨氯地平及生理盐水后,测定24尿蛋白排出量的变化;以自动图像分析仪测定了各组系膜细胞的定量指数、肾小球系膜基质指数;对肾组织标本进行了Ⅳ型胶原、层黏连蛋白及纤维连接蛋白的免疫组织化学染色,并以狭缝杂交法测定了层黏连蛋白的RNA转录。结果苯那普利可明显减少阿霉素肾病大鼠尿蛋白的排出量[治疗 6周(44.7± 6.0)mg/24h比治疗前(56.8 ±23.4)mg/24h],减少系膜细胞的增殖及系膜基质成分的合成。其作用与强的松组相类似,而苯磺酸氨氯地平却无此作用。结论苯那普利可直接作用于肾小球系膜基质,在转录水平抑制肾小球系膜基质的合成。
引用
收藏
页码:44 / 46
页数:3
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