献血人群人类血小板抗原1-5系统基因多态性分布特点

Blood Donation Population Human Platelet Antigen of 1-5 System Gene Polymorphism Distribution Characteristics

目的：探讨献血人群人类血小板抗原1-5系统基因多态性分布特点。方法采用聚合酶链-序列特异性引物技术（PCR-SSP）对200例无血缘关系的健康献血者进行HPA-1-5系统基因分型,分别计算献血人群的基因型及基因频率,分析其基因的多态性分布特点。结果该研究中献血人群HPA-1a、2a、3a、4a、5a基因频率分别为：0.942、0.741、0.926、0.945、0.773，HPA-1b、2b、3b、4b、5b基因频率分别为：0.058、0.286、0.084、0.045、0.227，各系统均呈多态性分布， ab杂合子依次为64和30例,-2bb4例；HPA-3和-15高度杂合,aa基因型依次为112和80例,很多献血人群属于bb基因型。结论该地区献血人群HPA-1-5系统基因均呈多态性分布,以HPA-3、-2和-5的a与b基因杂合率较高。

Objective To investigate the blood donation population human platelet antigen of 1 - 5 system gene polymorphism distribution characteristics.Methods Polymerase chain - sequence specific primers （PCR SSP） technology to the health of 200 cases of unrelated donors to HPA genotyping-1-5 system, gene frequency and genotype of the blood donation population are calculated respectively, analyze its gene polymorphism distribution characteristics.Results The study of blood donation population HPA - 1 a、2 a、3 a、4 a、5 a gene frequency are： 0.942、0.741、0.926、 0.741、0.926,HPA - 1 b、2 b、3 b、4 b、5 b gene frequencies are： 0.058、 0.286、0.084、0.286、0.084, are distributed in each system are polymorphism, ab heterozygous for 64 and 30 cases, in turn - 2 bb4 cases; HPA - 3 and 15 highly heterozygous, aa genotype was followed by 242 and 210, many line but people belong to the bb genotype. Conclusion This area crowd HPA - 1-5 blood donation system in gene polymorphism distribution of HPA - 3, 2 and 5 a and b gene hybrid rate is higher.