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Southeast Asian J Trop Med Public Health ; 1997 ; 28 Suppl 3(): 115-9
Artigo em Inglês | IMSEAR | ID: sea-33588

RESUMO

In order to provide population genetic data of various ethnic groups in Thailand, we have determined the type of hemoglobin by electrophoresis and the beta-globin gene haplotypes by PCR followed by restriction digestion in five small ethnic groups namely hill tribes, PhuTai, Chong, Lao Song and Sakai inhabiting in the north, northeast, east, central and south of Thailand, respectively. In each group, in addition to HbA and HbA2, the HbE, the most common hemoglobinopathy in Southeast Asia was detected at 2.5%, 51.6%, 84.0%, 8.6% and 11.8%, respectively. Haplotype analysis demonstrated that in all groups the beta A-globin gene was associated with various haplotypes and beta-globin gene frameworks. However, beta E -globin gene was associated with haplotypes ((-)+(-)+ + +(-)) and ((+)-(-)-(-)+(-)) on the beta-globin gene framework 2 in all ethnic groups except in Chong people whose the beta E-globin gene was mostly linked to haplotype ((-)+(-)++(-)+) and beta-globin gene framework 3 which was commonly found among Cambodian. It appears therefore that the Chong population is more related to Cambodian than Thai.


Assuntos
Etnicidade/genética , Globinas/genética , Haplótipos/genética , Humanos , Tailândia
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