Fig. 5. Profiles of secreted pro-inflammatory mediators following exposure. Mean concentrations of pro-inflammatory mediators measured in the basolateral media of the cultures 72 h after exposure. ↔ indicates p ≤ 0.05 compared with the corresponding air controls. # indicates a p ≤ 0.05 difference from 3R4F smoke exposure at a similar nicotine concentration. In the case of THS2.2 (0.45), 3R4F (0.26) was used as the comparison group.
