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氯沙坦抑制高胆固醇血症大鼠动脉核转录因子活化和细胞间粘附分子表达

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摘要 目的 :观察氯沙坦 (Los)对高胆固醇血症大鼠血管壁核转录因子 (NFkB)活化和细胞间粘附分子 (ICAM 1)表达的影响。方法 :3 0只雄性成年SD大鼠随机分为正常对照组 (NC组 ) ,高脂组 (HL组 )和Los组。 10周后 ,酶法测血清总胆固醇 ,硝酸还原酶法测胸主动脉组织中一氧化氮 (NO)、硫代巴比妥酸法测丙二醛 (MDA)含量及用黄嘌呤氧化酶法测超氧化物歧化酶 (SOD)活性 ;用免疫组化法测主动脉壁NFkB活化程度及ICAM 1蛋白表达水平 ;HE染色高倍视野下计数浸润于内膜的单核细胞数。结果 :Los组胸主动脉NO含量和SOD活力显著高于HL组 ,而MDA水平低于HL组 ;血管壁NFkB活化和ICAM 1表达水平及血管内膜中单核细胞数明显低于HL组 ;这 2组血清胆固醇浓度显著高于NC组 ,但它们之间无差异。结论 :Los能缓解自由基损伤 ,抑制高胆固醇血症大鼠主动脉NFkB活化和ICAM 1表达 。
出处 《心肺血管病杂志》 CAS 2002年第2期108-110,共3页 Journal of Cardiovascular and Pulmonary Diseases
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