摘要:
目的:研究在男性ApoE的基因多态性与冠心病严重程度的关系.方法:采用病例-病例对照的设计方法,对经选择性冠状动脉造影证实为冠心病的108例男性患者应用聚合酶链反应技术确定ApoE的基因型,分析比较ApoE的基因多态性与病情的关系.结果:E2/2,E2/3,E2/4,E3/3,E3/4和E4/4基因型分别占1.85%,10.19%,5.6%,39.81%,37.04%,5.6%,ε2,ε3和ε4等位基因频率分别为9.72%,63.43%和26.85%.E3基因型的HDL水平明显高于E2(P=0.005).E4基因型患者的病变最长长度明显长于E2基因型者(P=0.023),病变积分E4基因型者明显大于E2,E3者(P均=0.014).多重回归分析显示病变积分与病变支数、范围及基因型明显相关(b=8.118,10.356,5.187;P=0.002,0.020,0.056),Logistic回归分析显示舒张压、胆固醇浓度、三酰甘油浓度、HDL-C浓度和病变积分与基因型明显相关(b=0.079,0.893,-1.014,-3.413,0.049;P=0.033,0.032,0.027,0.040,0.039).结论:男性冠心病患者ApoE的基因多态性影响血脂代谢和病情,与疾病严重程度密切相关.