Table 1.

The effect of DEP ₅₀ on median EGFR ligand gene expression

	AR median (IQR)	HB-EGF median (IQR)	TGFα median (IQR)
SFM	2.8 (1.5-3.2)	2.0 (1.8-2.4)	2.2 (1.8–3.1)
DEP 6 h	4.1 (1.1-9.2)	4.1 (2.6-5.2)	1.5 (1.3–7.1)
DEP 18 h	2.2 (1.2-3.2)	2.0 (1.8-5.8)	4.0 (1.8–5.9)*

PBECs were exposed to DEP 50 μg/ml for 6 or 18 h and mRNA levels of the EGFR ligands determined by RT-qPCR. *p < 0.05, n = 10.