脂联素基因SNP+45 T/G单核苷酸多态性与冠心病的相关性研究

目的:研究中国华南地区汉族人脂联素基因SNP+45T/G单核苷酸多态性与冠心病的相关性。方法:以153例冠脉造影证实为冠心病的非糖尿病患者为冠心病组,以73例健康者为对照组,采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法分析脂联素基因SNP+45T/G单核苷酸多态性与冠心病的相关性,ELISA法测定血浆脂联素水平。结果:冠心病组T/G+G/G型频率、G等位基因频率均高于对照组(P0.05)。Logistic回归分析发现脂联素基因SNP+45 T/G+G/G型与冠心病正相关(OR:2.132,95.0%C I:1.034-4.397,P0.05),血浆脂联素水平与冠心病的发病呈负相关(OR:0.868,95.0%C I:0.785-0.959,P0.05)。结论:脂联素基因SNP+45 T/G+G/G型可能是华南地区汉族人冠心病的易感基因型。

Correlation of adiponectin gene SNP+45 T/G polymorphism with coronary heart disease

AIM: To investigate the relationship between adiponectin gene SNP+45 polymorphism and coronary heart disease (CHD) in south China Han population. METHODS: The nondiabetic CHD patients diagnosed by the coronary angiography were selected as CHD subjects (153 cases), and 73 healthy adults served as normal control subjects. The polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) was performed to identify the distribution pattern of adiponectin gene SNP+45 in all subjects. The levels of plasma adiponectin were measured by ELISA. RESULTS: The frequency of T/G + G/G genotype and G allele in CHD patients were significantly higher than those in control subjects (P<0.05). Logistic regression analysis revealed that the adiponectin gene SNP+45 T/G+G/G genotype had a strong positive association with CHD (OR: 2.132, 95.0% CI: 1.034-4.397, P＜0.05). The plasma adiponectin was negatively associated with CHD (OR: 0.868, 95.0% CI: 0.785-0.959, P<0.05). CONCLUSION: The T/G+ G/G genotype was a possible risk factor for CHD in southern China Han population.