Fig. 1. Protein concentration in the bronchoalveolar lavage fluid (BALF) in the different experimental groups after 90 (open) and 240 (dashed) min of mechanical ventilation. Data are mean ± SD from groups of 10 animals (except control, n = 16; 13/3H, n = 13; LPSip, LPSit, and Salit, n = 3). Statistically significant (individual comparisons, P < 0.05)* vs. group 28/8 90 and 240, 32/6 90 and 240, open-lung content (OLC) 240, partial liquid ventilation (PLV) 240, surfactant 240, 32/0H 90 and 240;** vs. group 32/6 90, 28/8 240, 32/6 240, OLC 240, PLV 240, 32/0H 240;# vs. group 28/8 90, OLC 90 and 240, PLV 90 and 240, surfactant 90 and 240, 32/0H 90 and 240, 32/6H 90 and 240;+ vs. groups OLC 90, PLV 90, and surfactant 90;° vs. groups 32/6 90 and 240;∼ vs. groups PLV 240 and 28/8 90.