Figure 1: Serum ALT (μml-1) and AST (μml-1) activities in the Control rats orally gavaged with 0.5 ml distilled water for 28 days (Group 1a), Control rats withdrawn from oral gavage with 0.5 ml distilled for 28 days (Group 1b), Control rats orally gavaged with 0.5 ml of vegetable oil for 28 days (Group 2a), Control rats withdrawn from oral gavage with 0.5 ml of vegetable oil for 28 days (Group 2b), Test rats orally gavaged with 20 mg/kg bw of nct for 28 days (Group 3a), Test rats withdrawn from oral gavage with 20 mg/kg bw of nct for 28 days (Group 3b), Test rats orally gavaged with 30 mg/kg bw of nct for 28 days (Group 4a) and Test rats withdrawn from oral gavage with 30 mg/kg bw of nct for 28 days (Group 4b) . Each value represents mean ± SEM; n=6; b,cP ≤ 0.05 compared to a, d and e; bP ≥ 0.05 compared to c; d,eP ≥ 0.05 compared to a.