Quantification of the densitometry data in (C) and (D) is shown as a box-and-whiskers plot of results from n = 6 participants for which data were available. *p<0.05 compared to control. (E) Western blot analyses of PBMCs demonstrated a time-dependent decrease in dual phosphorylation (threonine-180 and tyrosine-182) of p38 MAPK after inhalation of FP (500 µg).