sRAGE对动脉粥样硬化家兔主动脉组织ICAM-1及NF-κB表达的影响

被引:6
作者
李晓丽
曹国良
施惠华
王传慧
机构
[1] 上海交通大学医学院附属第九人民医院老年科
关键词
兔; 动脉粥样硬化; 可溶性晚期糖基化终末产物受体; 核转录因子; 细胞间粘附分子-1;
D O I
暂无
中图分类号
R543.5 [动脉疾病];
学科分类号
100201 [内科学];
摘要
目的观察可溶性晚期糖基化终末产物受体(sRAGE)对动脉粥样硬化(AS)家兔主动脉组织细胞间粘附分子-1(ICAM-1)及核转录因子κB(NF-κB)表达的影响,探讨sRAGE抗动脉粥样硬化的可能机制。方法 24只家兔随机分为对照组、动脉粥样硬化模型组、sRAGE组及辛伐他汀组,每组各6只。对照组饲喂普通饲料,其余三组均饲喂高脂饲料10周,第6周起sRAGE组开始腹腔注射sRAGE,辛伐他汀组添加药物饲料。10周后检测家兔血清总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)和低密度脂蛋白胆固醇(LDL-C)水平;采用免疫组织化学法检测主动脉组织ICAM-1和NF-κB表达水平;蛋白质印迹法检测主动脉组织ICAM-1蛋白表达水平。结果与对照组比较,AS模型组血清TC、TG、LDL-C水平明显升高,HDL-C水平明显降低(P<0.05);sRAGE组血清总胆固醇、甘油三酯、LDL-C水平均低于AS模型组(P<0.05),血清HDL-C水平高于AS模型组(P<0.05),而与辛伐他汀组比较差异无统计学意义(P>0.05)。与对照组相比,AS模型组主动脉组织中ICAM-1、NF-κB的表达水平明显升高(P<0.05);与AS模型组比较,sRAGE组主动脉组织中ICAM-1、NF-κB的表达水平显著下降(P<0.05),而与辛伐他汀组比较差异无统计学意义(P>0.05)。结论 sRAGE可能通过抑制NF-κB及ICAM-1的表达,从而发挥抗动脉粥样硬化作用。
引用
收藏
页码:681 / 685
页数:5
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