Comparative analysis of the tuberculosis susceptibility genetic make-up in Tuvinians and Russians
Freidin M.B., Rudko A.A., Puzyrev V.P., Kolokolova O.V., Strelis A.K., Ondar E.A.
Molecular Biology. 2006. 40(2), 218-227.
DOI: 10.1134/S0026893306020063
Polymorphisms of the tuberculosis (TB) susceptibility genes SLC11A1, VDR, IL12B, IL1B, and IL1RN were studied, for the first time in Russia, in Tuvinians from the Tyva Republic and ethnic Russians from Tomsk. Compared with Russians, Tuvinians had significantly higher frequencies of potentially pathological alleles SLC11A1*543N (0.139 vs. 0.043, P = 4.6 · 10−5), IL12B*1188C (0.378 vs. 0.174, P = 1.1 · 10−8), VDR*b (0.825 vs. 0.532, P = 3.2 · 10−16), IL1B*(+3953A1) (0.865 vs. 0.806, P = 0.035), and IL1RN*A1 (0.849 vs. 0.786, P = 0.030). However, none of the alleles was associated with TB in Tuvinians. Compared with healthy subjects, Russian patients with TB had higher frequencies of alleles IL1RN*A2 (0.258 vs. 0.186, P = 0.024), SLC11A1*274T (0.251 vs. 0.164, P = 0.009), IL12B*1188C (0.240 vs. 0.174, P = 0.044), and IL1B*(+3953A2) (0.259 vs. 0.194, P = 0.044). The structure of linkage disequilibrium in pairs of alleles differed between Tuvinians and Russians. In total, the results suggest ethnic specificity of the distribution and pathogenetic significance of the alleles of the TB susceptibility genes.