Figure 2: The effects of EECM and APAP on serum ALT and GGT activities. The results are presented as the mean ± SD (). In each dataset, each letter indicates a significant difference between two groups. a: a significant difference between saline control and APAP control groups, b: a significant difference between APAP control and T 250 groups, c: a significant difference between APAP control and T 500 groups, d: a significant difference between APAP control and T 1000 groups, e: a significant difference between APAP control and silymarin groups, f: a significant difference between T 250 and T 500 groups, and g: a significant difference between T 500 and T 1000 groups, respectively, at .