Fig 2. Effects of picroside II on airway inflammation and mucus secretion in HDM-induced asthma model.

After the collection of BALF, lung tissue was fixed, sectioned at 4μm and stained with hematoxylin and eosin (H&E) (A) or periodic acid-Schiff (PAS) (B) solution (magnification 100x or 400x). NC; normal control mice treated with saline only, model; HDM-sensitized/challenged mice, PIC 15 and 30; picroside II (15 and 30 ㎎/㎏) + HDM-sensitized/challenged mice, DEX; dexamethasone + HDM-sensitized/challenged mice.