Figure 2.

Smad2, 3, 4 and 7: Results of real-time PCR analysis at 1 and 24 h, presented for control and disease stage, per stimulation. Values are based on 2^{-delta-delta-Ct} values and represent the median percentages compared to the basal value before each stimulation (basal set to 100%). Asterisks indicate significant change compared to basal values. St II = GOLD stage II, St IV = GOLD stage IV.