Table 2

Quantification of biomarkers in the bronchial epithelium

BiomarkerAir exposure Median (IQR)NO2 exposure Median (IQR)p value*
*Wilcoxon’s matched paired sign rank test.
IQR, interquartile range.
Eotaxin0 (0–0)0 (0–0.91)1.00
GM-CSF0 (0–0.6)0 (0–0)0.66
Gro-α3.86 (2.68–5.41)5.58 (1.25–10.67)0.67
ICAM-19.24 (0.28–14)18.2 (12.98–22.18)0.05
IL-51.26 (0.29–3.15)6.02 (3.35–8.49)0.01
IL-60 (0–31.34)3.26 ( 0–3.92)0.97
IL-85.1 (3.72–8.71)8.33 (4.67–12.65)0.33
IL-103.85 (0.23–6.34)6.16 (5.45–12.3)0.01
IL-130.48 (0–1.44)2.34 (1.39–3.51)0.04
NF-κB (total)2.8 (1.47– 4.74)4.06 (2.79–5.07)0.40
NF-κB (active)0.42 (0–4.41)2.66 (0.59–3.03)0.61
TNF-α0 (0–0)0 (0–0)0.32