Figure 2.

Changes in arterial oxygenation in awake, endotoxemic sheep. rhAPC, recombinant human activated protein C alone group (n = 4); LPS, lipopolysaccharide group (n = 8); LPS + rhAPC, rhAPC-treated LPS group (n = 9). Data presented as the mean ± standard error of the mean. PaO₂, arterial oxygen partial pressure; AaPO₂, alveolar–arterial oxygen tension difference. †P < 0.05 between the LPS and the LPS + rhAPC groups; ‡P < 0.05 from t = 0 hours in the LPS group; §P < 0.05 from t = 4 hours in the LPS group; *P < 0.05 from t = 0 hours in the LPS + rhAPC group; #P < 0.05 from t = 4 hours in the LPS + rhAPC group.