同型半胱氨酸水平、MTHFR基因突变与原发性高血压的病例对照研究(英文)

被引:5
作者
詹思延
高原原
尹香君
胡永华
李立明
Vivian Ng
Lee BL
Ong CN
机构
[1] 北京医科大学流行病学教研室
[2] 新加坡国立大学社区、职业和家庭医学系
关键词
同型半胱氨酸; MTHFR基因; 原发性高血压; 病例对照研究;
D O I
暂无
中图分类号
R544.1 [高血压];
学科分类号
1002 ; 100201 ;
摘要
探讨升高的同型半胱氨酸水平、MTHFR基因突变与原发性高血压的关系。方法:从上海一个社区中随机选取127例35~75岁的原发性高血压病人和170例正常血压者。采用聚合酶链反应-限制性片段长度多态性分析MTHFR基因多态性。使用高效液相色谱结合电化学方法检测血清中同型半胱氨酸总浓度,使用放射免疫法同时测定血清中叶酸和B12浓度。结果:调整年龄和性别后,病例和对照组同型半胱氨酸水平分别为 10.56 μmol/L和 10.34 μmol/L,差异无显著性(P=0.63)。在未服降压药的对象中同型半胱氨酸浓度与收缩压和舒张压亦无关联。该人群MTHFR不耐热性基因突变频率为13.1%,突变等位基因频率为38.7%。病例组与对照组基因型分布和突变等位基因频率无显著性差异。然而,病例组叶酸和B12浓度高于对照组。结论:本研究未发现升高的同型半胱氨酸水平、MTHFR基因突变是原发性高血压的独立危险因素。高血压病人较高的叶酸和B12水平可能降低了同型半胱氨酸的危险性。
引用
收藏
页码:21 / 25
页数:5
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