不同人群地中海贫血筛查及基因诊断结果分析

目的了解不同人群地中海贫血的分布情况。方法对本院就诊贫血患者、孕产妇、婚检人群及新生儿共5010例,采用红细胞平均体积、红细胞脆性及血红蛋白电泳三种方法联合检测地中海贫血;对其中150例经基因分析确诊患者的基因型进行分析。结果 5010例受检者中检出地中海贫血864例,阳性率为17.25%（864/5010）,以贫血患者阳性率最高为35.00%左右,明显高于其余三组的10.94%～19.07%（P〈0.05）,其他血红蛋白疾病19例,阳性率为0.38%（19/5010）。150例基因分型地中海贫血患者中,α地贫以-SEA/αα基因型为主,占92.41%;β地中海贫血以41-42M杂合子为主,占50.00%。结论本地区属地贫高发区,不同人群α、β地中海贫血检出率各有高低,本研究结果为开展遗传咨询及产前诊断提供了有价值的实验室资料,对有效地预防中、重型地中海贫血儿出生具有重大意义。

ANALYSIS ON SCREENING AND GENE DIAGNOSIS OF THALASSEMIA IN 5010 SPECIMENS OF VARYING DROVE

Objective To investigate the distribution of thalassemia in varying drove. Methods 5010 specimens of anemia patients,pregnant women,marriage examination group,and neonatal were tested by mean corpuscular volume,erythrocyte fragility test,and hemoglobin electrophoresis,the genotypes of 150 final diagnosis thalassemia were analysed. Results Of all the 5010 samples,864 case were positive for thalassemia,the positive rate was 17.25% ( 864/5010),the positive rate of anemia patients was about 35.00%,it was the hi...