Serum concentration of diacyl-phosphatidylcholines (mean values of 5–10 animals). (A) Example of metabolite (PC aa C40:3) whose concentration decreased with progressing hepatic lipidosis. Group 1: no hepatic lipidosis; groups 2–4: different stages of hepatic lipidosis. (B) and (C) Diacyl-phosphatidylcholines whose serum concentrations increased with progressing hepatic lipidosis. The P values indicate significant differences with the reference group 1; n.s., not significant.