GPT and cholestasis: The values of liver enzymes, including ALP (240.5 (201.5–286.5) U/L vs. 275 (173–311.6) U/L), ALT 45 (31.5–89) U/L vs. 56 (33.6–97) U/L, p < 0.01) and AST 59 (47.9–98.7) U/L vs. 67 (56.5–114.5) U/L, p < 0.01) were higher in patients with cholestasis than in patients without cholestasis (Table 1).