COX1基因多态性与血小板聚集功能在缺血性脑卒中复发患者中的交互作用

Interaction between COX1 gene polymorphism and platelet aggregation function in patients with recurrent ischemic stroke

目的 探讨COX1基因多态性与血小板聚集功能的交互作用对缺血性脑卒中复发患者的影响。方法 选择2020年7月—2023年7月缺血性脑卒中复发患者70例为观察组,另选择同期体检的70例健康者为对照组。比较两组的一般资料并分析COX1基因多态性。检测并比较两组患者COX1基因多态性位点基因型及等位基因频率分布。比较观察组不同基因型血小板聚集率水平及与缺血性脑卒中复发易感性的关系及交互作用。结果 两组的血小板计数、COX1、血小板聚集率差异具有统计学意义(P<0.05)。两组COX1基因(rs1330344位点)CC基因频率、CT基因频率、TT基因频率及基因型C分布和基因型T分布差异具有统计学意义(P<0.05)。COX1(rs1330344位点)CC型基因携带者缺血性脑卒中复发的风险是未携带者的1.872倍。观察组COX1(rs1330344位点)基因型CC患者血小板聚集率>基因型CT患者>基因型TT患者(P<0.05),差异具有统计学意义。COX1(rs1330344位点)基因型与患者血小板聚集率显著相关。糖尿病史、高血压史、TG、HCY、COX1(rs1330344位点)基因型、血小板聚集率均为缺血性脑卒中复发的独立危险因素(P<0.05)。COX1(rs1330344位点)基因型CC与血小板聚集率在患者缺血性脑卒中复发易感性中呈正向交互作用(3.266<1.736×2.114,为次相乘模型)。结论 COX1(rs1330344位点)基因型CC和血小板聚集率在患者缺血性脑卒中复发易感性中呈正向交互作用且易感性显著增加,临床上可据此制定早期预防措施。

Objective To investigate the influence of the interaction between COX1 gene polymorphism and platelet aggregation function on patients with recurrent ischemic stroke.Methods A total of 70 patients with recurrent ischemic stroke from July 2020 to July 2023 were enrolled as observation group,and 70 healthy individuals who underwent physical examination during the same period of time were enrolled as control group.General data were compared between the two groups,and COX1 gene polymorphism was analyzed.The distribution of genotype and allele frequencies at COX1 gene polymorphism loci was determined and compared between the two groups.Platelet aggregation rate and its association and interaction with the susceptibility to recurrence of ischemic stroke were compared between the patients with different genotypes in the observation group.Results There were significant differences between the two groups in platelet count,COX1,and platelet aggregation rate(P<0.05).There were also significant differences between the two groups in the frequencies of CC gene,CT gene,and TT gene and the distribution of genotype C and genotype T at the rs1330344 locus of the COX1 gene(P<0.05).The risk of the recurrence of ischemic stroke in the patients who carried genotype CC at the rs1330344 locus of the COX1 gene was 1.872 times that in the patients who did not carry this genotype.In the observation group,the patients with genotype CC at the rs1330344 locus of the COX1 gene had the highest platelet aggregation rate,followed by those with genotype CT and genotype TT(P<0.05).The genotype at the rs1330344 locus of the COX1 gene was significantly correlated with platelet aggregation rate.The history of diabetes and hypertension,triglyceride,homocysteine,genotype at the rs1330344 locus of the COX1 gene,and platelet aggregation rate were independent risk factors for recurrence of ischemic stroke(P<0.05).There was a positive interaction between genotype CC at the rs1330344 locus of the COX1 gene and platelet aggregation rate in the susceptibility to recurrence of ischemic stroke(3.266<1.736×2.114,which was a submultiplicative model).Conclusion There is a positive interaction between genotype CC at the rs1330344 locus of the COX1 gene and platelet aggregation rate in the susceptibility to recurrence of ischemic stroke,and there is a significant increase in susceptibility.