Research Article

Antioxidant Defense Enzyme Genes and Asthma Susceptibility: Gender-Specific Effects and Heterogeneity in Gene-Gene Interactions between Pathogenetic Variants of the Disease

Table 6

Associations of genotype combinations with risk of nonallergic asthma (stratified by gender).

Combinations of genotypes Nonallergic asthmaControlsChi-square ( value1)OR (95% CI)
% %

Men
GPX1 198PL × CAT −21AA 620.721.911.13 (0.001)*11.45 (2.49–52.66)
GPX1 198LL × GCLM −588CT 413.832.93.50 (0.05)5.17 (1.20–22.31)
GPX3 GA × FMO3 158KK 517.243.84.58 (0.03)5.06 (1.37–18.99)
GPX3 GA × GSR TT 620.754.85.68 (0.02)5.05 (1.49–17.14)
GPX3 GA × CAT −21AA 517.243.84.58 (0.03)5.06 (1.35–18.99)
GPX3 GG × GCLM −588CT 1137.91514.38.12 (0.004)3.67 (1.47–9.28)
GSR TT × GCLM −588CT 827.632.915.31 (0.0001)*11.58 (3.07–43.72)
GSR TT × FMO3 158KK 413.811.07.16 (0.01)12.29 (1.84–82.03)
CAT −21AA × CYBA −930GG 517.211.010.55 (0.001)*15.64 (2.44–100.3)
CAT −21AA × FMO3 158EE 413.811.07.16 (0.01)12.29 (1.84–82.03)
GCLM −588CT × CYBA −930GG 1241.4109.516.8 (0.00004)*6.71 (2.5–17.96)
CYBA −930GG × FMO3 158EE 724.154.88.22 (0.004)6.09 (1.85–20.05)

Women
GPX1 198PL × GPX2 GA 27.400.03.88 (0.05)21.47 (1.00–461.1)
GPX2 GG × IL5 −703CT622.25651.46.29 (0.01)0.29 (0.11–0.74)
GPX2 GA × IL5 −703CC27.400.03.88 (0.05)21.5 (1.00–461.2)
EPHX1 113YH × IL5 −703CT13.72422.03.69 (0.05)0.20 (0.04–1.09)
EPHX1 113HH × IL5 −703CC 725.943.711.58 (0.001)*8.58 (2.43–30.26)

  unadjusted   value. value adjusted for multiple tests ( ) is less than 0.002 in men and 0.004 in women. *A statistically significant association.