Figure 3

Immunocytochemical identification of T cells (CD3), total eosinophils (major basic protein; MBP), activated eosinophils (EG2) and mast cells (tryptase) in airways less than 2 mm (black) and greater than 2 mm (white) in diameter from patients with asthma. For airways that are less than 2 mm in diameter, results are expressed as the mean of six airways from four patients with asthma. For airways that are greater than 2 mm in diameter, results are expressed as the mean of 10 airways from six patients with asthma. ^*P < 0.05 versus airways >2 mm Pi. Pi, internal perimeter. Adapted from Hamid et al. [4].