Figure 3. Protein concentration (micro gram/ml) in the bronchoalveolar lavage fluids (BALF) obtained from the HCl-instilled lungs and the noninstilled lungs (mean plus/minus SD). *P < 0.05 compared to control. #P < 0.05 compared with noninstilled lung. HCl + PTX = pentoxifylline pretreatment group. There was no statistical difference between the HCl + PTX and HCl groups.