中国人群LW血型基因多态性的研究

本研究探讨中国人群Landsteiner—Wiener（LW）血型基因的多态性。随机采集深圳市血液中心160名非血缘关系无偿志愿捐血者外周血样EDTA抗凝血标本，并提取DNA。对这160例DNA标本直接进行LW血型基因的第一外显子测序分析，同时用优化的LWa／LWb等位基因PCR—SSP方法进行了的基因分型。结果表明：在对这160例捐血者基因组DNA的分子生物学研究中发现LW血型等位基因均为LWa纯合子。结论：在中国人群中LWa等位基因更常见，本次研究中100％的献血者LW血型等位基因均为LWa，目前还未发现LWb等位基因。

Polymorphism of LW Blood Group Gene in Chinese Population

In order to study the polymorphism of Landsteiner-Wiener (LW) blood group gene in Chinese population, peripheral blood samples anticoagulated with EDTA from 160 unrelated volunteer blood donors were randomly collected, and genomic DNA were extracted. 160 DNA samples were analyzed for exon 1 of LW gene by direct DNA sequencing, and detected for LWa/LWb allele by improved PCR-SSP genotyping. The results showed that all LW allele in 160 donors were LWa homozygous, and the LWa allele occurred commonly. In conclusion, LWa allele occurs with incidence of 100% of donors in this study, while LWb allele has not been found in Chinese population.