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Association of polymorphisms in the human IL4 and IL5 genes with atopic bronchial asthma and severity of the disease.

Authors: Freidin, MB  Kobyakova, OS  Ogorodova, LM  Puzyrev, VP 
Citation: Freidin MB, etal., Comp Funct Genomics. 2003;4(3):346-50.
Pubmed: (View Article at PubMed) PMID:18629290
DOI: Full-text: DOI:10.1002/cfg.293

Two polymorphisms in the IL4 (G/C 3'-UTR) and IL5 (C-703T) genes were studied in a sample of families whose probands had atopic bronchial asthma (BA) (66 families, n = 183) and in a group of non-cognate individuals with the severe form of the disease (n = 34). The samples were collected from the Russian population in the city of Tomsk (Russia). Using the transmission/disequilibrium test (TDT), a significant association of allele C-703 IL5 with BA was established (TDT = 4.923, p = 0.007 +/- 0.0007). The analysis of 40 individuals with mild asthma and 49 patients with the severe form of the disease revealed a negative association of genotype GG IL4 (OR = 0.39, 95% CI = 0.15-0.99, p = 0.035), and also a trend towards a positive association of the GC IL4 genotype (OR = 2.52, 95% CI = 0.98-6.57, p = 0.052) with mild BA. There was a concordance of the clinical classification of BA severity with the 'genotype' (McNemar's chi(2) test with continuity correction constituted 0.03, d.f. = 1, p = 0.859). These results suggest that polymorphisms in the IL4 and IL5 genes contribute to the susceptibility to atopic BA and could determine the clinical course of the disease.


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CRRD Object Information
CRRD ID: 4890940
Created: 2010-12-22
Species: All species
Last Modified: 2010-12-22
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.