NRAMP1 and VDR gene polymorphisms in susceptibility to pulmonary tuberculosis among Andhra Pradesh population in India: a case-control study.

BACKGROUND:The aim of the present study was to evaluate the association of NRAMP1 -3'UTR, 274-CT,VDR- Fok1 VDR-Taq1 Polymorphisms with the risk of pulmonary tuberculosis. METHOD:A case -control study was conducted on Andhra Pradesh Population of India. Analysis of gene polymorphisms of NRAMP1 gene (3'UTR, 274CT) and VDR gene (Fok1 and Taq1) was done by using Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in Tuberculosis (TB) patients and healthy controls. The obtained results were observed using 2% Agarose Gel electrophoresis and analysed statistically using Chi-square test and Odds Ratio. RESULTS:Statistical significance was observed between the patients and the controls in the NRAMP1-3'UTR (P = 0.005; OR = 2.997; 95% CI = 1.019-8.813) and VDR-Taq1 (P < 0.001; OR = 0.140;95% C.I = 0.050-0.386) polymorphisms in Andhra Pradesh population. No statistical significance was observed between patients and controls of the same population in NRAMP1-274CT and VDR-Fok1 polymorphisms (p > 0.05). CONCLUSION:3'UTR-NRAMP1 gene and VDR-Taq1 gene Polymorphisms are statistically associated with the susceptibility of TB in Andhra Pradesh Population in India.

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