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脉心康对载脂蛋白E基因敲除小鼠主动脉核因子κB和基质金属蛋白酶9表达的调控 被引量:6

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摘要 目的观察脉心康对载脂蛋白E基因敲除小鼠主动脉核因子κB、基质金属蛋白酶9mRNA表达水平的调控作用。方法6周龄载脂蛋白E基因敲除小鼠,随机分为高脂血症组(模型组)、洛伐他汀组及脉心康组,相同遗传背景的同龄正常C57BL6J小鼠为正常对照组。原位杂交观察各组主动脉核因子κB和基质金属蛋白酶9mRNA表达的强度。结果各给药组与模型组比较,核因子κBmRNA、基质金属蛋白酶9mRNA阳性细胞表达率均明显降低(P<0.01)。光镜下发现正常对照组主动脉壁内皮细胞、平滑肌细胞胞质内核因子κBmRNA、基质金属蛋白酶9mRNA阳性表达细胞极少见;模型组主动脉壁内皮细胞、平滑肌细胞胞质内阳性表达的棕褐色颗粒较多见,且棕褐色颗粒染色均较深;脉心康组主动脉壁可见内皮细胞、平滑肌细胞胞质内阳性表达的棕褐色颗粒,但远较模型组少,棕褐色颗粒染色深浅较均匀。结论脉心康可降低载脂蛋白E基因敲除小鼠主动脉核因子κB、基质金属蛋白酶9mRNA表达,发挥抗动脉粥样硬化、稳定斑块的作用。
出处 《中国动脉硬化杂志》 CAS CSCD 2006年第5期444-445,共2页 Chinese Journal of Arteriosclerosis
基金 国家自然科学基金(30472275)资助课题 山东省自然科学基金(Y2001C14)资助课题
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参考文献5

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