Laboratory Medicine ›› 2019, Vol. 34 ›› Issue (12): 1082-1087.DOI: 10.3969/j.issn.1673-8640.2019.12.005

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Analysis of serum lipoprotein (a) and homocysteine levels in patients with acute coronary syndrome

DING Hui1, LI Zhumeng2, WANG Yin3, WANG Dong3, SHENG Huiming1   

  1. 1. Department of Clinical Laboratory,Tongren Hospital,Shanghai Jiaotong University School of Medicine,Shanghai 200336,China
    2. Jiangsu University,Zhenjiang 212013,Jiangsu,China
    3. Department of Cardiovascular Medicine,Tongren Hospital,Shanghai Jiaotong University School of Medicine,Shanghai 200336,China
  • Received:2019-03-04 Online:2019-12-30 Published:2020-01-03

Abstract:

Objective To analyze the correlations of serum blood lipids and homocysteine(Hcy) with acute coronary syndrome(ACS). Methods A total of 118 patients with ACS confirmed by coronary angiography,including 30 patients with ST-segment elevation myocardial infarction(STEMI),28 patients with non-ST-segment elevation myocardial infarction(NSTEMI) and 60 patients with unstable angina(UA),were enrolled. Totally,44 patients with chest pain confirmed by coronary angiography showing no significant stenosis of coronary arteries were enrolled as pathological control group,and 61 healthy subjects were enrolled as healthy control group. Serum blood lipids and Hcy levels were determined. The ACS patients were classified into New York Heart Association(NYHA) Ⅰ-Ⅳ according to NYHA cardiac function classification. Multi-variant Logistic regression analysis was used to evaluate the risk factors of ACS. Results The levels of serum lipoprotein(a)[Lp(a)] and Hcy in ACS group were higher than those in pathological control group and healthy control group(P<0.05),while the levels of serum high-density lipoprotein cholesterol(HDL-C)and apolipoprotein(apo)A1 in ACS group were lower than those in pathological control group and healthy control group(P<0.05). There was no statistical significance in serum triglyceride(TG),total cholesterol(TC),low-density lipoprotein cholesterol(LDL-C) and apoB levels among the 3 groups(P>0.05). Serum Lp(a) and Hcy levels in STEMI group were higher than those in NSTEMI group and UA group(P<0.05),and HDL-C and apo A1 levels were lower than those in NSTEMI and UA groups(P<0.05). There was no statistical significance in serum Lp(a),HDL-C,apo A1 and Hcy between NSTEMI group and UA group(P>0.05). The levels of Lp(a)and Hcy were increased with the increasing of NYHA cardiac function classification(P<0.05),and there was no statistical significance in serum HDL-C and apo A1 levels with NYHA cardiac function classification(P>0.05). Multi-variant Logistic regression analysis showed that serum Lp(a) and Hcy were risk factors for ACS [odds ratios(OR) were 4.590 and 2.808,respectively],and the 95% confidence intervals(CI) were 1.375-15.322 and 1.026-7.685,respectively. Conclusions Lp(a)and Hcy may be involved in the process of coronary artery disease. Serum Lp(a)and Hcy levels may be serological indicators for screening high-risk ACS population.

Key words: Lipoprotein(a), Homocysteine, Acute coronary syndrome

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