Fig. 2.

Representative hematoxylin & eosin sections of lung. a Sham animals were treated with PBS only. b They were given 5 mg/kg Y-27632 alone. Separate mice were pretreated with vehicle (PBS) (c) and 0.5 (d) or 5 mg/kg Y-27632 (e) 10 min prior to M1 protein administration. Samples were harvested 4 h after M1 protein challenge. Scale bar indicates 100 µm. f Histology score of lung injury. Data represents mean ± SEM, * p < 0.05 versus sham and ^# p < 0.05 versus vehicle + M1 protein, n = 5.