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Polymorphism of the Interleukin- and Interleukin Receptor Genes: Population Distribution and Association with Atopic Asthma
Authors:Freidin  M B  Puzyrev  V P  Ogorodova  L M  Kobyakova  O S  Kulmanakova  I M
Institution:(1) Institute of Medical Genetics, Russian Academy of Medical Sciences, Tomsk, 634050, Russia;(2) Siberian State Medical University, Tomsk, 634050, Russia
Abstract:Population distribution and pathogenetic significance for bronchial asthma (BA) of the eight polymorphic variants of six interleukin- (IL) and interleukin receptor genes, C-589T, G/C 3"-UTRIL4, C-703T IL5 T113M IL9 Q551R, 150V IL4RA, G-80A IL5RA, and G1972A IL5RB, was examined. In the population samples of Russians, Tajiks, Buryats, and Tuvinians racial and ethnic specificity of these polymorphisms was established. These specific features were manifested as population-specific ldquogenetic portraitsrdquo in respect of polymorphic allele frequencies. Analysis of the BA patients and their relatives from Tomsk by use of transmission/disequilibrium test (TDT) revealed the presence of a statistically significant association between the C-703 IL5 allele and the disease (P= 0.005). This is the first evidence of an association between the IL5 gene polymorphism and BA.
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