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载脂蛋白E基因多态性对血脂及冠心病 颈动脉粥样硬化的影响 |
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张原力 游凯 张丽华 姜玉新 薛红 陈保生 方圻
【摘要】 目的 探讨ApoE基因多态性对中国人血脂水平的影响及与冠心病发病、颈动脉粥样硬化程度的关系。方法 选择96例冠心病患者(CHD组)及131例健康对照者(对照组),测定空腹血清甘油三脂(TG)、总胆固醇(TC)、高密度脂蛋白-胆固醇(HDL-C)及低密度脂蛋白胆固醇(LDL-C)浓度。应用PCR ,HhaI内切酶消化及PAGE的方法确定ApoE基因多态性。采用高分辨二维超声技术测定双侧颈动脉内中膜厚度。结果 CHD组与对照组相比,ApoE基因型频率及ε2,ε3,ε4三种等位基因频率均无显著差异(P>0.05);在男性CHD患者及健康对照者,不同的ApoE基因型TC,LDL-C浓度差异均有显著性,并按ε2/2+ε2/3<ε3/3<ε3/4+ε4/4的顺序递增。在女性虽有相似的趋势,但未达统计学显著水平;52例男性CHD患者测定了颈动脉内中膜厚度,并按不同的ApoE基因型分成三组:ε2/2+ε2/3,ε3/3,ε3/4+ε4/4,结果显示:颈动脉内中膜厚度及多发粥样硬化斑块发生率在不同的ApoE基因型间差异有显著性(P<0.01),含ε4等位基因者显著增加,当消除LDL-C的影响后上述差异仍显著(P<0.05)。结论 ApoE基因多态性是影响血清TC及LDL-C水平的重要遗传因素之一。ApoE基因多态性与颈动脉粥样硬化的程度相关,ε4等位基因是危险因素,但并非仅通过增高LDL-C浓度发挥作用。 【关键词】 载脂蛋白E类 基因 冠状动脉疾病
Effect of apolipoprotein E polymorphism on serum lipids, coronary heart disease, and carotid artery atherosclerosis
Zhang Yuanli, You Kai, Zhang Lihua, et al. Peking Union Medical College Hospital, Beijing 100730
【Abstract】 Objective To elucidate the effect of apolipoprotein E polymorphism on serum lipids and the relationship between apolipoprotein E polymorphism and coronary heart disease (CHD) as well as carotid artery atherosclerosis in Chinese people.Methods Serum triglyceride, total cholesterol (TC), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C) were measured. Polymerase chain reaction (PCR), HhaI digestion, polyacrylamide gel electrophooresis, and silver staining were used for the detection of apolipoprotein E genotype. In 52 male CHD cases, an extracranial carotid artery high-resolution B-mode ultrasound examination was performed. Results There were no statistically significant differences in apoplipoprotein E allel or genotype frequences between CHD cases and controls (P >0.05). In male CHD cases and controls, the genotypes were associated with serum TC [1] [2] [3] 下一页 上一个医学论文: 扩张型心肌病血浆降钙素基因相关肽与淋巴细胞Ca2 的变化及关系 下一个医学论文: 超声目测法评价左心室室壁运动的准确性
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