Research Article

A Role of the ABCC4 Gene Polymorphism in Airway Inflammation of Asthmatics

Table 3

Association of ABCC4 −1508A>G polymorphism with clinical features, metabolite, and cytokine profiles in asthmatic patients.

Clinical featuresAA ()AG/GG () value

Age (years)39.01 ± 14.3440.92 ± 15.090.735
Sex, male (%)32.1428.570.335
Atopy (%)57.4651.180.928
Total IgE (IU/mL)451.48 ± 965.78278.32 ± 319.680.240
Rhinosinusitis (%)81.2118.780.143
Nasal polyp (%)81.1118.880.889
FEV1 (%)86.45 ± 19.6687.54 ± 14.570.638
PC20 methacholine (mg/mL)10.19 ± 17.075.82 ± 8.040.119
Total IgE451.48 ± 965.78278.32 ± 319.690.24
Asthma duration (years)6.30 ± 6.0312.81 ± 32.360.237

Inflammatory cytokinesAA ()AG/GG () value

MPO (μg/L)108.26 ± 79.5150.91 ± 94.130.027
IL-8 (pg/mL)16.82 ± 14.4514.47 ± 7.50.616
IL-18 (pg/mL)247.77 ± 166.06281.92 ± 197.100.560
Eotaxin-1 (ng/mL)85.67 ± 63.6785.22 ± 65.110.841
Eotaxin-2 (ng/mL)1146.92 ± 802.141104.95 ± 641.090.650
Periostin (ng/mL)71.07 ± 33.6291.83 ± 50.850.016

Serum metabolites (ng/mL)AA ()AG/GG () value

15-HETE265.98 ± 185.69334.34 ± 132.470.195
LTE418.22 ± 1718.8 ± 14.710.731
PGF2α23.55 ± 9.321.96 ± 8.690.653
TXB20.41 ± 0.420.39 ± 0.170.952
Eoxin C44.82 ± 9.58.14 ± 11.950.224
S1P111.75 ± 42.16120.91 ± 42.880.419

Urinary metabolites (pmol/mg Cr)AA ()AG/GG () value

15- HETE271.91 ± 89.87332.5 ± 99.310.032
LTE47648.29 ± 14378.312601.73 ± 3043.590.616
PGF2α8618.51 ± 22942.81678.71 ± 978.760.65
TXB25686.61 ± 4305.74798.25 ± 3957.210.765
Eoxin C4144.78 ± 94.07124.75 ± 46.650.602
S1P32.56 ± 8.2541.5 ± 9.350.010

Values were presented as mean ± SD, whereas values were shown as percentage. Cr: creatinine; LTE4: leukotriene E4; PGF2α: prostaglandin F2α; TXB2: thromboxane B2; 15-HETE: 15-hydroxyeicosatetraenoic acid; MPO: myeloperoxidase; S1P: sphingosine-1-phosphate. value was obtained by logistic regression analysis with age and sex as covariates.