PMID: 25785111Mar 19, 2015Paper

Single nucleotide polymorphisms of cathepsin S and the risks of asthma attack induced by acaroid mites

International Journal of Clinical and Experimental Medicine
Chaopin LiZhiming Liu

Abstract

To investigate association between the three single nucleotide polymorphisms (SNPs, rs146456111, rs143154304 and rs147260142) in cathepsin S (Cat S) and the risks of allergic asthma attack induced by the acaroid mites in the Chinese population. A case-control study was performed in 412 cases and 454 volunteers/controls to evaluate the effects of three SNPs in Cat S on the risks of asthma attack. The genotypes were determined using polymerase chain reaction (PCR) and cleaved amplification polymorphism sequence-tagged sites (PCR-RFLP). The frequencies of genotypes and alleles in these SNPs in the asthmatic group were also analyzed between the two groups. The locus of rs146456111 in Cat S gene, the allele frequency of A and C in asthmatic group were significantly different from the control group (χ(2) = 184.425, P = 0.000), and the difference was significant regarding the distribution of the genotypes (AA, AC, and CC) between asthmatic subjects and normal controls (χ(2) = 177.915, P = 0.000). Logistic regression analysis revealed that the AC, CC, and AC + CC genotypes were significantly increased with the risk of asthma (AC vs. AA, OR = 4.013, 95% CI = 2.989-4.751, P = 0.000; CC vs. AA, OR = 3.167, 95% CI = 2.483-3.785, P = 0.000;...Continue Reading

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