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Published on: April 1, 2019
NRAMP1 and TNF-alpha polymorphisms and susceptibility to tuberculosis in Thais
Sasijit Vejbaesya1, Nitipatana Chierakul, Panpimon Luangtrakool
1Department of Transfusion Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand. sisve@mahidol.ac.th
Objective And Background:
Polymorphisms in the natural resistance-associated macrophage protein gene 1 (NRAMP1) and tumour necrosis factor (TNF)-alpha gene have been found to be associated with susceptibility to tuberculosis in different populations. However, the results are inconsistent. This study aimed to determine whether NRAMP1 and TNF-alpha variants are associated with tuberculosis in Thais.
Methods:
Polymorphisms of NRAMP1 at INT4, D543N and the 3' untranslated region, and of TNF-alpha at +488, -238, and -308, were examined in 149 tuberculosis patients and 147 healthy controls. PCR using sequence-specific oligonucleotides and sequence-specific priming were used to genotype the NRAMP1 and TNF polymorphisms, respectively.
Results:
There were no significant differences in the distribution of the genotype frequencies for the NRAMP1 and TNF-alpha polymorphisms between the patients and controls.
Conclusions:
The NRAMP1 and TNF-alpha genes are not associated with susceptibility to tuberculosis in Thais.
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