Abstract
To investigate the gene mutation spectrum of β-thalassemia in Dai ethnic population of 2 border region in Chinese Yunnan Province. The patients with β-thalassemia in Dai ethnic population of Dehong and Xishuangbanna autonamic prefecture were screened by using blood routine detection and capillary electrophoresis. The β-globin gene mutation in patients with β-thalassemia were detected by using PCR reverse dot-blot hybridization (PCR-RDB), the constitutive rate of gene mutation in patients with β-thalassemia of Dai ethnic population in two border regions was analyzed and compared. A total of 186 patients with gene mutation of β-thalassemia were confirmed. Among them, 10 gene mutation were found, and the 5 main gene mutations were CD26 (62.56%), CD41-42 (18.97%), CD17 (14.36%), CD71-72 (2.05%) and IVS-II-654 (1.54%). Among Dai ethinic population in Dehong region, 4 gene mutations were found including CD26 (80.31%), CD17 (11.02%), CD41-42 (6.30%) and CD71-72 (2.36%). Among Dai ethinic population in Xishuangbanna region, 6 gene mutations were found, out of them the more common gene mutations were CD41-42 (42.64%), CD26 (29.41%) and CD17 (20.59%). The gene mutations of β-thalassemia in Dai ethinic population of Yunnan province has been confirmed to be more genetic heterogenicity, the spectrums of β-thalassemia mutations in Dai ethinic population of different regions were significant different.
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