TABLE E4.
Biomarkers of oxidant stress in children with asthma excluded from data analysis
Severe asthma AO− included in data analysis (n = 30) | Severe asthma AO+ included in data analysis (n = 25) | Severe asthma excluded from data analysis (n = 9) | |
---|---|---|---|
GSH (μmol/L) | 94 ± 107 | 57 ± 95 | 34 ± 51* |
GSSG (μmol/L) | 39 ± 61 | 72 ± 76 | 16 ± 15† |
GSH + GSSG (μmol/L) | 134 ± 150 | 129 ± 134 | 50 ± 48 |
% GSSG | 36 ± 27 | 62 ± 24 | 55 ± 38* |
Eh GSH:GSSG (mV) | −119 ± 44 | −96 ± 30 | −82 ± 45* |
H2O2 (μmol/L) | 12 ± 13 | 15 ± 18 | 31 ± 46 |
MDA (μmol/L) | 38 ± 12 | 51 ± 39 | 95 ± 93 |
8-Isoprostanes (μmol/L) | 405 ± 274 | 1073 ± 1929 | 827 ± 1228 |
Data are expressed per mL of epithelial lining fluid (ELF) and represent the mean ± SD. Differences between groups were analyzed with non-parametric Mann-Whitney U statistics. Post-hoc testing was performed on significant variables with ANOVA and Tukey tests.
P < .05 vs severe asthma AO−.
P < .05 vs severe asthma AO+.