Figure 6

Mucus Staining. Representative* PAFS stained tissue sections imaged with a dual excitation filter (FITC/Texas Red) and the 20× objective (F imaged at 10×.). A) naïve, B) OVA, C) Salmeterol, D) Fluticasone, E) Fluticasone and Salmeterol, F) immersion fixed lung from OVA mouse demonstrating airway obstruction with mucus. *Representative figures were chosen using criteria described in the text.