ApoE基因多态性与糖脂代谢及动脉硬化关联性分析  

Association analysis of ApoE gene polymorphism with glucolipid metabolism and arteriosclerosis

作　　者：徐阳[1] 韩拓 刘莉君 李盈[2] 张岩[2] 姬婧 张鹏倩 王聪霞[2] XU Yang;HAN Tuo;LIU Lijun;LI Ying;ZHANG Yan;JI Jing;ZHANG Pengqian;WANG Congxia(Department of Laboratory Medicine,Second Affiliated Hospital of Xi'an Jiaotong University,Xi'an,710004,China;Department of Cardiology,Second Affiliated Hospital of Xi'an Jiaotong University;Department of Oncology,Second Affiliated Hospital of Xi'an Jiaotong University)

机构地区：[1]西安交通大学第二附属医院检验科,西安710004 [2]西安交通大学第二附属医院心血管内科 [3]西安交通大学第二附属医院肿瘤科

出　　处：《临床血液学杂志》2023年第6期393-397,共5页Journal of Clinical Hematology

基　　金：国家自然科学基金青年项目(No:82100359)。

摘　　要：目的:探究冠心病(coronary heart disease,CHD)患者中载脂蛋白E(ApoE)基因多态性与血脂及动脉硬化严重程度之间关联性。方法:回顾性收集2021年9月至2022年8月收治的245例CHD患者,根据ApoE基因型分组:ApoE2(32例)、ApoE3(171例)及ApoE4(42例)组,比较各组间血脂、血糖、颈动脉内中膜厚度(carotid artery intima-media thickness,cIMT)、冠脉Gensini评分以及甘油三酯葡萄糖乘积指数(triglyceride-glucose index,TyG)、致动脉粥样硬化指数(atherogenic index of plasma,AIP)的差异。结果:245例CHD患者中ε3/ε3基因型最常见(69.0%),ε3等位基因频率最高(82.4%),其次为ε4(9.6%)和ε2(8.0%)。CHD患者均已接受他汀降脂治疗,而烟酸类与贝特类药物使用较少。与ApoE3组比较,E2组患者血浆总胆固醇(cholesterol,TC)、脂蛋白a[Lipoprotein a,Lp(a)]及高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)水平降低,但差异无统计学意义(P>0.05);E4组低密度脂蛋白(low-density lipoprotein cholesterol,LDL-C)降低,甘油三酯(triglycerides,TG)则升高(均P<0.05)。ApoE4组CHD患者的cIMT显著高于E3组,TyG与血浆促动脉硬化指数(atherogenic index of plasma,AIP)显著增加(P<0.05);E2组患者AIP指数增加,cIMT与TyG指数与E3组比较差异无统计学意义(P>0.05)。3组间冠脉Gensini评分、颈动脉斑块比例及冠脉病变支数分布基本类似(P>0.05)。结论:ApoE2和E4基因型的CHD患者接受他汀治疗能有效改善血脂异常情况,但仍存在较高的动脉硬化与胰岛素抵抗风险。Objective To explore the association between apolipoprotein E(ApoE)gene polymorphism and blood lipids and severity of arteriosclerosis in the patients with coronary heart disease(CHD).Methods A total of 245 patients with CHD admitted from September 2021 to August 2022 were retrospectively selected and divided into three groups according to ApoE genotype.The differences in blood lipids and glucose,carotid intima-media thickness(cIMT),coronary Gensini score,triglyceride-glucose index(TyG)and atherogenic index of plasma(AIP)were compared between groups.Results Among 245 CHD patients,the genotypeε3/ε3 was the most common(69.0%),and alleleε3 had the highest frequency(82.4%),followed byε4(9.6%)andε2(8.0%).All CHD patients had given statins for lipid-lowering therapy,while niacin and fibrates were less commonly used.Compared to ApoE3 group,the plasma levels of TC,Lp(a)and HDL-C in E2 group were decreased with no significance(P>0.05),while LDL-C significantly decreased and TG increased in E4 group(P<0.05).The cIMT of CHD patients in ApoE4 group was significantly higher than that in E3 group,and the TyG and AIP index were both significantly increased(P<0.05).AIP index increased in E2 group,while cIMT and TyG index were similar with those of E3 group(P>0.05).The Gensini score,the proportion of carotid plaque and the number of coronary artery lesions were similar among the three groups(all P>0.05).Conclusion In CHD patients with ApoE2 and E4 genotypes,statins could effectively ameliorate dyslipidemia,but still left a higher residual risk of atherosclerosis and insulin resistance.

关 键 词：动脉粥样硬化 载脂蛋白E 基因多态性 血脂异常 胰岛素抵抗 

分 类 号：R446.1[医药卫生—诊断学]