南京汉族人群Duffy血型等位基因FYES及FYX调查研究

摘要

目的 研究南京地区汉族人群中Duffy血型等位基因FYES及FYX的表达情况.方法 随机提取200例无偿献血者EDTA-K2抗凝外周血血样DNA,采用PCR-SSP方法进行Duffy血型FYA、FYB等位基因分型;采用Sanger双脱氧链末端终止测序法分析Duffy血型FYES及FYX等位基因序列特点.结果 PCR基因分型结果与测序结果一致,200例标本中,检出FYA/FYA 180例,FYA/FYB 20例;测序结果表明,200例标本中未发现FYES及FYX等位基因表达.结论 FYES及FYX等位基因在中国南京地区汉族人群中表达频率极低,与其他人种相比具有显著性差异.%Objective To investigate the FYES and FYX allele expression situation of Duffy blood group in Han population of Nanjing area.Methods The genomic DNA was randomly extracted from peripheral EDTA-K2 anticoagulation blood samples in 200 voluntary blood donors and Duffy blood group FYA and FYB allele typing was performed by PCR-SSP.The EYES and FYX allele sequence charateristics of Duffy blood group were analyzed by adopting Sanger double deoxygenation gene sequencing method.Results The PCR genotyping results were consistent with the sequencing results.Among 200 samples,180 cases were FYA/FYA and 20 cases were FYA/FYB;the sequencing results showed that FYES and FYX allele expression was not been found in 200 samples.Conclusion The expression frequencies of FYES and FYX alleles are extremely low in Han population of Nanjing area,which has significant difference compared with other races.