Figure 1

Effects of Codonopsis lanceolata extract (CLE) on histopathological changes in the lung. Sections of lung tissue were stained with haematoxilin and eosin (H&E) (A) and periodic acid–Schiff (PAS) (B). Arrowheads indicate mucus production. SC, saline control group; A + VEH, asthmatic lung inflammation group; A + CLE200, A + CL extract 200 mg/kg; A + CLE400, A + CL extract 400 mg/kg; A + Dex, A + dexamethasone 5 mg/kg.