Two single nucleotide polymorphisms in ALOX15 are associated with risk of coronary artery disease in a Chinese Han population

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Abstract

Arachidonate 12/15-lipoxygenase (12/15-LOX) has been implicated in the pathogenesis of atherosclerosis, but with contradicting results. The aim of this study was to investigate the association of two polymorphisms in ALOX15 and the risk of coronary artery disease (CAD) in a Chinese Han population. A total of 519 unrelated CAD patients and 608 unrelated control subjects of the Chinese Han population were recruited in the case-control study. Two tagSNPs, rs7217186:T>C and rs2619112:G>A, were selected and genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The carriers of the C allele (the CC homozygote and the CT heterozygote) of rs7217186:T>C and the carriers of the A allele (the AA homozygote and the GA heterozygote) of rs2619112:G>A displayed elevated odds ratios (ORs) for CAD compared with the TT homozygotes and GG homozygotes, respectively, after adjusting for other potential confounders including age, sex, body mass index, systolic blood pressure, diastolic blood pressure, glucose, triglyceride, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and smoking status (adjusted odds ratio [OR] = 3.2, 95% confidence interval [CI]: 1.335-7.665, P = 0.009 and adjusted OR = 3.5, 95% CI: 1.343-9.330, P = 0.011). In stratified analyses, after adjusting those aforementioned confounders, the CC and CT genotypes of rs7217186:T>C were associated with a greater risk of CAD in subjects <60 years (adjusted OR = 5.7, 95% CI: 1.557-21.097, P = 0.009) and in females (adjusted OR = 9.3, 95% CI: 1.048-82.213, P = 0.045). For rs2619112:G>A, subjects (<60 years) carrying the A allele had a greater risk of CAD than the GG homozygotes (adjusted OR = 4.9, 95% CI: 1.215-19.547, P = 0.025); the male carriers of A allele also had a greater risk (adjusted OR = 3.5, 95% CI: 1.136-11.006, P = 0.029). In summary, the present study shows that after adjustment for other confounding CAD factors, rs7217186:T>C and rs2619112:G>A of ALOX15 are associated with increased risk of CAD in this Chinese Han population. © 2010 Springer Japan.

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Zhang, K., Wang, Y. Y., Liu, Q. J., Wang, H., Liu, F. F., Ma, Z. Y., … Li, L. (2010). Two single nucleotide polymorphisms in ALOX15 are associated with risk of coronary artery disease in a Chinese Han population. Heart and Vessels, 25(5), 368–373. https://doi.org/10.1007/s00380-009-1223-5

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