广西地区β地中海贫血基因突变类型分析 |
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引用本文: | 朱凌,罗瑞贵,周天红,张天郎,尹晓林,王丽,周亚丽,孔详敬,彭玲,张新华.广西地区β地中海贫血基因突变类型分析[J].华南国防医学杂志,2009,23(2):41-43. |
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作者姓名: | 朱凌 罗瑞贵 周天红 张天郎 尹晓林 王丽 周亚丽 孔详敬 彭玲 张新华 |
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作者单位: | 1. 广西崇左市人民医院血液科,广西崇左,532200 2. 解放军303医院血液科 |
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摘 要: | 目的探讨β地中海贫血的基因突变类型及临床表现型特点。方法采用反向斑点杂交技术检测中国人群8个常见位点和9个少见位点突变的共17种β地贫基因,分析β地贫基因型与临床表现型特点。结果β地贫1082例,检出10种突变基因类型,分别为β^0的CD41-42、CD17、CD27-28、CD71-72、CD43和β^+的IVS-2-654、-29、-28、IVS-1-1以及类似β地贫变化异常血红蛋白E(CD26)。814例杂合子β地贫中有9种基因型,β^0杂合子637例(5种基因型),β^+杂合子122例(3种基因型),血红蛋白E(HbE)55例。双重杂合子β地贫146例,β^0/β^+双重杂合子69例(12种基因型),β^0/β^0双重杂合子73例(7种基因型),β^+/β^+双重杂合子4例(4种基因型)。纯合子β地贫82例,β^0纯合子β地贫77例(3种基因型),β^+纯合子5例(1种基因型)。β地贫复合HbE40例(5种基因型)。结论β地贫基因突变类型与以往报告的广西β地贫基因型一致;β地贫临床表现型复杂多变;基因检测对于地贫的临床诊断、治疗和预防有重要的意义。
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关 键 词: | β地中海贫血 基因突变类型 临床表现型 |
Genotypes of β Thalassemia in Guangxi |
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Institution: | ZHU Ling ,LUO Rui-gui , ZHOU Tian-hong , et al. (1 Department of Hematology, People' s Hospital of Chongzuo , Chongzuo Guangxi 532200, China) |
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Abstract: | Objective To explore gene mutation types and phenotypic characteristics of β thalassemia.Methods 17 β thalassemia genes of Chinese population,including 8 common mutation sites and 9 seldom mutation sites were detected by reverse dot blot hybridization.The genotypes and phenotypes were analysed.Results Ten different genotypes were identified in 1082 patients with β thalassemia,namely β^0(CD41-42,CD17,CD27-28,CD71-72,CD43),β^+(IVS-2-654,-29,-28,IVS-1-1),and HbE(CD26).814 cases were heterozygote β thalassemia(9 genotypes),637 cases heterozygote β^0(5 genotypes),122 cases heterotypes β^+(3 genotypes),and 55 cases hemoglobin E.146 cases were double heterozygote β thalassemia,69 cases double heterozygote β^0/β^+(12 genotypes),73 cases double heterozygote β^0/β^0(7 genotypes),and 4 cases double heterozygote β^+/β^+(4 genotypes).82 cases were homozygote β thalassemia,77 homozygote β^0 cases(3 genotypes),and 5 cases homozygote β^+(1 genotype).40 cases were β thalassemia complex HbE(5 genotypes).Conclusion Gene mutation type of β thalassemia was consistent with the past report in Guangxi.In clinic β thalassemia phenotype has obvious multiplicity.Gene testing is important for clinical diagnosis,treatment and prevention of thalassemia. |
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Keywords: | β thalassemia Genotype Phenotype |
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