Figure 3

Effects of ASD on infiltration of inflammatory cells in the airway. (A) No pathological changes treated with saline for four times. (B) Slight hypertrophy of epithelial cells and slight infiltration of neutrophils and lymphocytes in the airway exposed to ASD alone for four times. (C) Slight proliferation of epithelial cells and very slight infiltration of eosinophils and lymphocytes into the airway submucosa and exposed to OVA alone for four times. (D) Marked infiltration of eosinophils and lymphocytes into the airway submucosa, extension of length of epithelial cells in the airway epithelium co-exposed to OVA and ASD for four times. (E) No pathological changes treated with saline for eight times. (F) Slight infiltration of lymphosytes in the airway exposed to ASD alone for eight times. (G) Very slight infiltration of eosinophils into the airway submucosa and proliferation of epithelial cells in the airway exposed to OVA alone for eight times. (H) Moderate infiltration of eosinophils and lymphocytes into the airway submucosa, proliferation of epithelial cells co-exposed to OVA and ASD for eight times. (A–H) H&E stain.