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作 者:蔡永林[1] 李军[1] 陈秀勤[1] 李传杰[1] 马宇毅 黄德旺[3] 李海凤[1] 陆爱英[1] 汤敏中[1]
机构地区:[1]广西壮族自治区梧州市红十字会医院医学检验科,543002 [2]广西壮族自治区梧州市红十字会医院妇产科,543002 [3]广西壮族自治区梧州市红十字会医院消化内科,543002
出 处:《中华地方病学杂志》2013年第4期395-399,共5页Chinese Journal of Endemiology
基 金:梧州市科技计划项目(201201163)
摘 要:目的探讨广西梧州汉族人群人类白细胞抗原(HLA)-A和HIJA—B等位基因多态性与α-地中海贫血的关系。方法采用聚合酶链反应一直接测序分型法(PCR—SBT),对广西梧州籍126例汉族α-地中海贫血患者(病例组)和173名正常健康人(对照组)进行HLA—A和HLA—B基因多态性分析。通过等位基因频率和单倍型频率比较,计算仅一地中海贫血发生的相对危险度(比值比,OR),分析HLA—A和HLA—B等位基因与梧州汉族人群地中海贫血发生的相关性。结果病例组HLA-A*33:03、HLA—B*15:01、HLA-B*55:02等位基因频率[15.48%(39/252)、3.17%(8/252)、6.75%(17/252)]显著高于对照组[9.83%(34/346)、0.29%(1/346)、2.31%(8/346)],OR值分别为1.68、11.31、3.06(P均〈0.05);HLA—B。15:02等位基因频率[7.54%(19/252)]显著低于对照组[12.72%(44/346)],OR值为0.56(P〈0.05)。HLA—A*11:01-B*55:02、HLA—A*02:07-B*40:01单倍型频率[2.38%(6/252)、1.59%(4/252)]显著高于对照组[0.29%(1/346)、0.00%(0/346)],OR值分别为8.41、11.16(P均〈0.05)。结论HLA—A和HLA—B等位基因具有多态性。HLA—A*33:03、HLA—B*15:01、HLA—B*55:02、HLA—B*15:02等位基因发生频率和HLA—A*11:01-B*55:02、HLA—A*02:07一B*40:01单倍型发生频率与梧州汉族仪一地中海贫血的易感性有关联。Objective To investigate the relationship between HLA-A and HLA-B allele polymorphism and α-thalassemia of Han ethnic population in Wuzhou City of Gnangxi. Methods By polymerase chain reaction- sequence-based typing(PCR-SBT), the HLA-A, HLA-B genetic polymorphisms were determined in 126 patients with α-thalassemia(patient group) of Han ethnic and 173 healthy individuals as control group in Wuzhou City of Guangxi. The relative rick factor (odd ratio, OR ) was calculated by allele frequency and haplotype frequency. Results The allele frequencies of HLA-A*33:03, HLA-B*15:01 and HLA-B*55:02 in the patient group[15.48% (39/252), 3.17% (8/252) and 6.75% (17/252) ] increased significantly compared with that of the control group [9.83% (34/346), 0.29% (1/346) and 2.31% (8/346) ] ; the value of OR was 1.68, 11.31 and 3.06, respectively (all P 〈 0.05). The allele frequency of HLA-B*15:02 in patient group[7.54%(19/252) ] was significantly lower than that in control group [ 12.72% (44/346)]; the value of OR was 0.56 (P 〈 0.05 ). The haplotype frequencies of HLA- A*11:01-B*55:02 and HLA-A*02 : 07-B*40 : 01 were significantly higher in patient group [2.38% (6/252) and 1.59%(4/252)] than in control group[0.29%(1/346) and 0.00%(0/346)]; the value of OR was 8.4l and 11.16, respectively(all P 〈 0.05). Conclusions HLA-A and HLA-B loci are highly polymorphisms. The allele frequencies of HLA-A*33:03, HLA-B*15:01, HLA-B*55:02 and HLA-B*15:02, and the haplotype frequencies of HLA-A* 11:01-B*55:02 and HLA-A*02:07-B*40:01 may be associated with susceptibility to α-thalassemia of Han ethnic population in Wuzhou City.
关 键 词:地中海贫血 人类白细胞抗原 聚合酶链反应 等位基因频率 遗传易感性
分 类 号:R556[医药卫生—血液循环系统疾病]
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