Fig. 3From: Oxidative-antioxidative status and hepatic and renal factors following melatonin administration in castrated and intact dogsChanges of hepatic enzyme concentrations (Mean ± SEM) in the control, melatonin, castrated, and castrated+melatonin groups during the one-month study. The mean concentrations were compared using one-way and two-way repeated-measures analysis of variance (ANOVA) and Tukey’s multiple comparisons tests (ALP: alkaline phosphatase; ALT: alanine aminotransferase; AST: aspartate aminotransferase)Back to article page