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补肾中药血清对血管内皮细胞损伤的保护作用 被引量:9

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摘要 目的探讨补肾中药血清对血管内皮细胞损伤的影响。方法以培养的人脐静脉内皮细胞(HUVECs)作为靶细胞.灌服蒸馏水的兔血清为对照,在内皮细胞培养基中加入氧化型低密度脂蛋白(ox-LDL),并在试验体系中加入灌服补肾中药的兔血清,收集内皮细胞培养上清液,以硝酸还原酶法检测一氧化氮(NO)的含量,硫代巴比妥酸法测定丙二醛(MDA)的含量;流式细胞仪Annexin V-PI双染色法检测内皮细胞的凋亡发生率,透射电镜观察内皮细胞超微结构的变化。结果ox-LDL显著降低内皮细胞培养上清液中NO水平,升高MDA的含量,促进内皮细胞凋亡,透射电镜显示内皮细胞内线粒体肿胀明显。在试验体系中加入灌服补肾中药的兔血清。则NO水平明显升高,MDA含量明显下降.内皮细胞凋亡率下降(P<0.01),同时内皮细胞内线粒体变化趋于正常;而灌服蒸馏水的兔血清则无此作用。结论补肾中药血清对于ox-LDL造成的内皮细胞损伤具有保护作用。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2007年第11期1035-1037,共3页 Chinese Journal of Gerontology
基金 上海市科技攻关项目(004019061)资助
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