Figure 2

Alveolar cells (mean ± SEM) in BALF. Macrophages, eosinophils, lymphocytes, and neutrophils were counted. NC, negative control group; PP, rats sensitized and challenged with 0.5 mg of pollen; GG, rats sensitized and challenged with 4.5 × 10⁷ PCGs; PG, rats sensitized with 0.5 mg of pollen and challenged with 4.5 × 10⁷ PCGs; GP, rats sensitized with 4.5 × 10⁷ PCGs and challenged with 0.5 mg of pollen; *, significantly different from the NC group (P < 0.05); #, significantly different from the PP group (P < 0.05).