Figure 3From: Effect of neutrophil elastase and its inhibitor EPI-hNE4 on transepithelial sodium transport across normal and cystic fibrosis human nasal epithelial cells Representative traces of short-circuit current measurements showing the effect of hNE in control and CF HNEC incubated with aprotinin. HNEC from control (WT) and CF (ΔF508) patients grown on Snapwell filters were mounted in Ussing chamber and incubated apically with aprotinin (final concentration: 50 μg/ml) for 90 min before hNE (final concentration: 33 μg/ml) was added.Back to article page