HLA-A、B基因多态性与遵义地区汉族人群肾综合征出血热的相关性研究

目的 探讨HLA-A、B基因多态性与遵义地区汉族人群肾综合征出血热(HFRS)的关联性.方法 采用群体研究方法,应用聚合酶链反应-序列特异性引物(PCR-SSP)技术对100例肾综合征出血热患者和100例健康对照者进行HLA-A、B基因分型,比较其等位基因频率(GF),并计算其相对危险度(RR).结果 肾综合征出血热患者组中,HLA-A*31、B*58的等位基因的基因频率分别为4%、l2.5%,较健康对照组的0、5%明显增高,两组比较差异具有统计学意义(X2值分别为6.380和7.792,P<0.05,RR值分别为18.47、2.91);患者组中HLA-B*40等位基冈的基因频率(11%)显著低于健康对照组(19%),两者之问差异具有统计学意义(X2=6.095,P<0.01,RR值为0.47).结论 研究提示在遵义地区汉族人群中,初步认为HLA-A*31、B*58基因与HFRS呈正相关,HLA-B*40基因与HFRS呈负相关.

Correlation between the HLA-A, B alleles polymorphism and hemorrhagic fever with renal syndrome of Han nationality in Zunyi area

Objective To explore the correlation between HLA-A, B alleles polymorphism and hemorrhagic fever with renal syndrome (HFRS) among Han nationality in Zunyi area. Methods Using group study, HLA-A, B genotypes were conducted in 100 HFRS cases and 100 controls among Han nationality in Zunyi area with polymerase chain reaction-sequence specific primer (PCR-SSP), gene frequency (GF) and relative risk (RR) were compared and calculated. Results The frequencies of HLA-A * 31 and HLA-B * 58 alleles in HFRS cases (GF=4%,12.5%) were strikingly higher than that in the healthy controls (X2=6.380, 7.792, P<0.05;RR=18.47,2.91). The frequencies of HLA-B * 40 alleles in HFRS cases (GF=11%) were strikingly higher than that in the healthy controls (X2=6.095,P<0.01, RR=O.47). Conclusion HLA-A * 31, B * 58 genes are positively related to HFRS of Han nationality in Zunyi area, HLA-B * 40 gene is negatively related to HFRS of Han nationality in Zunyi area.