In healthy swine, GLN levels remained stable, both in S and P; i.v. infusion, and even more i.v. + E significantly increased GLN in the S circulation (P < 0.001), whereas E infusion failed to do so (P = 0.4). On the contrary, GLN P levels were significantly increased after i.v. + E infusion, as well as after E infusion (P < 0.001) and to a lesser extent, after i.v. (P < 0.001). In sepsis, both S and P GLN levels decreased significantly. As previously, i.v. (P = 0.001) and even more i.v. + E (P < 0.001) infusion significantly increased S GLN levels, while E infusion failed to have any effect. In the P vein, both i.v. (P = 0.02) and i.v. + E (P < 0.001) GLN increased significantly, whereas the E had no effect (P = 0.08). See Figures 1 and 2.