Serum biochemical indicators 3, 35, 91, and 180 days after surgery (A) total protein (TP), (B) albumin (ALB), (C) alanine transaminase (ALT), (D) aspartate aminotransferase (AST), (E) alkaline phosphatase (ALP), (F) creatinine (CR), (G) blood urea nitrogen (BUN), (H) triglyceride (TG), (I) total cholesterol (TCH), (J) glucose (GLU), (K) creatine kinase (CK), (L) total bilirubin (TBIL), (M) potassium (K+), (N) sodium (Na+), (O) chlorine (Cl−). Results are plotted as mean ± SD, *P < 0.05, n = 20 at 0 days, n = 5 at 3–180 days, using Student's t-test.