GPT and Wilson disease: No significant differences in the serum ALT or AST levels were observed between the WD patients of both groups by the 1-year follow up (30.37 ± 17.56 IU/L vs 29.66 ± 14.82 IU/L, P > 0.05; 26.95 ± 9.87 IU/L vs 28.42 ± 6.90 IU/L, P > 0.05).