Figure 1.

Number of neutrophils (open area) and mononuclear cells (hatched area) in bronchoalveolar lavage fluid of control (n = 20), diabetic (n = 14) and insulin-treated diabetic (n = 9) rats 6 h after porcine pancreatic elastase (PPE, right lung) or saline (S, left lung) instillation. Neutral protamine Hagedorn insulin (4 IU/rat) was given 2 h before instillation. Data are presented as means ± SEM and analysed by one-way anova followed by the Tukey–Kramer multiple comparisons test as follows: *P < 0.001 compared with corresponding values in saline-treated lungs; ^‡P < 0.001 and ^†P < 0.01 compared with PPE-treated lung from diabetic rats.