Figure 3
mRNA expression of ET A receptors (A), ET B receptors (B) and ET-1 in the bronchi. The mRNA expression of ETA and ETB receptors and ET-1 in the bronchi was quantified by means of real-time PCR. Each data point was derived from results for at least 3 segments. No differences in the expression level after DSP or nicotine treatment were found as compared with controls (DMSO), (p > 0.05).