血清同型半胱氨酸、谷氨酰转移酶与冠心病及冠脉狭窄程度的相关性

2018-12-21 11:19:06陈敏杨林飞孙桂兰高玉
中国医药导报 2018年26期
关键词:同型半胱氨酸冠心病

陈敏 杨林飞 孙桂兰 高玉

[摘要] 目的 探讨生化指标血清同型半胱氨酸(HCY)、谷氨酰转移酶(GGT)与冠心病的相关性及诊断价值。 方法 随机选取2015年10月~2016年10月在合肥市第二人民医院心血管内科住院行冠状动脉造影检查的患者,经过造影证实非冠心病患者115例,冠心病患者161例。通过队列研究及Logistic回归分析评估生化指标HCY、GGT和冠心病的相关性。 结果 两组在年龄、高血压病史、三酰甘油、总胆固醇、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、载脂蛋白A、载脂蛋白B、尿酸、总胆红素、间接胆红素、HCY、GGT水平上差异有统计学意义(P < 0.05)。HCY、GGT和冠脉狭窄程度(Gensini)评分均呈正相关(r = 2.18、2.42,P < 0.05)。多因素Logistic回归分析结果示,HCY、GGT是冠心病的独立危险因素(P < 0.01,95%CI:1.035~1.167;P < 0.01, 95%CI:1.083~1.175)。受试者工作曲线提示当HCY=11.80 mmol/L时为预测冠心病最佳割点。曲线下面积0.686。 结论 血清生化指标HCY、GGT是冠心病的独立危险因素,且与冠脉的狭窄程度存在相关性。HCY对于临床诊断冠心病具有一定价值。

[关键词] 血清生化指标;同型半胱氨酸;谷氨酰转移酶;冠心病;Gensini评分

[中图分类号] R541 [文献标识码] A [文章编号] 1673-7210(2018)09(b)-0050-04

[Abstract] Objective To explore the correlation between homocysteinemia (HCY), glutamyltransferase (GGT) and coronary heart disease and the degree of coronary artery stenosis. Methods Patients who underwent coronary angiography in the Second People′s Hospital of Hefei from October 2015 to October 2016 were selected randomly as the research subjects. They were divided into normal group (115 cases) and coronary heart disease group (161 cases) based on the results of diagnostic coronary angiography. Results The two groups had significant differences in age, hypertension history, triacylglycerol, total cholesterol, high-density lipoprotein chdesterol, low density lipoprotein, apolipoprotein A, apolipoprotein B, uric acid, total bilirubin, indirect bilirubin, HCY and GGT (P < 0.05). According to linear correlation analysis, the levels of HCY and GGT were positively correlated with coronary Gensini scores (r = 2.18, 2.42, P < 0.05). Multivariate Logistic regression analysis showed that HCY and GGT were independent risk factors of coronary heart disease (P < 0.01, 95%CI: 1.035-1.167; P < 0.01, 95%CI: 1.083-1.175). In a receiver operating characteristic (ROC) curve, the HCY value of 11.80 mmol/l was identified as an effective cut-point in the coronary heart disease and the area under curve was 0.686. Conclusion HCY and GGT are independent risk factors of coronary heart disease and they are positively correlated with the degree of coronary artery stenosis. HCY is an indicator of diagnosis of coronary heart disease.

[Key words] Serum biochemical indicators; Homocysteinemia; Glutamyltransferase; Coronary heart disease; Gensini score

冠心病是冠狀动脉发生粥样硬化而引起的血管腔狭窄,造成心肌缺血、低氧或坏死所导致的心脏病[1-3]。冠心病发病率呈逐年升高趋势,严重危害人类健康[4-6]。早期发现冠心病的危险因素行一级预防是治疗的关键[7]。

冠心病是一类复杂的多因素参与的疾病。传统的危险因素有年龄、教育水平、收入、高脂饮食、运动、超重、吸烟、饮酒、高脂血症、高血压、糖尿病等[8-9]。寻找新型冠心病危险因素成为近年来研究的热点。相关文献指出同型半胱氨酸(HCY)是一种含巯基的非必需氨基酸,为损伤性氨基酸,可直接造成血管内皮细胞损伤及平滑肌细胞的增生[10]。胆红素及谷氨酰转移酶(GGT)是常用于肝胆疾病的检查指标,反映氧化应激水平,GGT升高可反映氧自由基对细胞损伤情况。……

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