期刊
JOURNAL OF CLINICAL PATHOLOGY
卷 73, 期 8, 页码 488-492出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/jclinpath-2019-206339
关键词
diagnostic screening; haematology; genetics
类别
资金
- Science and Technology Planning Project of Zhongshan [2017B1007]
Aims Thalassaemia is one of the most common genetics disorders in the world, especially in southern China. The aim of the present study was to investigate the feasibility of combining the gap-PCR and next-generation sequencing (NGS) for thalassaemia carrier screening in the Chinese population. Methods Blood samples were obtained from 944 prepregnancy couples; thalassaemia carrier screening was performed by using a routine haematological method and a combination of gap-PCR and NGS method. Results We found that the alpha thalassaemia carrier rate was 11% (207/1888); the beta thalassaemia carrier rate was 3.7% (70/1888); the composite alpha thalassaemia and beta thalassaemia carrier rate was 0.4% (8/1888). We also identified seven novel mutations, including HBA1: c.412A>G, -50 (G>A), HBB: c.*+129T>A, HBB: c.-64G>C, HBB: c.-180G>C, HBB: c.*+5G>Aand HBB: c.-113A>G. By comparing the combined gap-PCR and NGS method, the MCV+MCHand HbA2 detection strategy showed a lower sensitivity of 61.05% (105/172) and a higher missed diagnosis ratio of 38.95% (67/172) for alpha thalassaemia mutations. The sensitivity was improved with the MCV+MCHand HbA2 detection screen when compared with MCV+MCH detection for beta thalassaemia (98.51% vs 85.90%). Conclusions Our study suggests the combined gap-PCR and NGS method is a cost-effective method for the thalassaemia carrier screening, particularly for the alpha thalassaemia mutation carriers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据