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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Polymorphisms in the IL13, IL13RA1, and IL4RA genes and rate of decline in lung function in smokers.

Targeted expression of interleukin (IL)-13 in the adult murine lung has been shown to cause emphysema. We hypothesized that variants in the IL13, IL13RA1, and IL4RA genes would be associated with an accelerated rate of decline of lung function among smokers. We determined the allele frequencies of five polymorphisms in the IL13, IL13RA1, and IL4RA genes in 588 continuing smokers chosen from the NHLBI Lung Health Study for having the fastest (n = 282) and slowest (n = 306) 5-yr rate of decline of lung function (mean change in FEV(1) %predicted/yr = -4.1 and +1.1, respectively). The IL4RA 551RR genotype was associated with rapid decline of lung function (odds ratio, 2.24; P = 0.043). However, none of the other four polymorphisms was associated with rate of decline in lung function. The association of 551RR with rapid decline of lung function became more significant in subjects who also had either the IL13 130RR or -1112TT genotypes. However, because multiple comparisons were made and only a few individuals had the 551RR genotype, these associations may represent type 1 error. Haplotypes consisting of alleles from the IL13 polymorphisms or from the IL4RA polymorphisms were not associated with rate of decline in lung function in smokers.[1]

References

  1. Polymorphisms in the IL13, IL13RA1, and IL4RA genes and rate of decline in lung function in smokers. He, J.Q., Connett, J.E., Anthonisen, N.R., Sandford, A.J. Am. J. Respir. Cell Mol. Biol. (2003) [Pubmed]
 
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