Table 2.

Effect of PC pre-treatment on antioxidant status in HepG2 cells against CTN-induced toxicity.

Treatment groups	Catalase (mM/mg protein)	SOD (U/mg protein)	GPx (μM/mg protein)	Total GSH (nmoles/mg protein)
Control	0.100 ± 0.02	6.51 ± 0.32	3.43 ± 0.02	210.75 ± 9.10
CTN 96 μM	0.038 ± 0.01∗	1.62 ± 0.46∗	0.94 ± 0.01	62.89 ± 6.90∗
PC 100 μM	0.083 ± 0.01	5.92 ± 0.13	3.15 ± 0.01	203.60 ± 4.34
PC 50 μM + CTN 96 μM	0.043 ± 0.03#	3.82 ± 0.61	1.53 ± 0.01	109.11 ± 2.43#
PC 100 μM + CTN 96 μM	0.075 ± 0.02#	5.12 ± 0.27#	2.46 ± 0.02	176.49 ± 5.21#

Data are expressed as the mean ± standard deviation from three independent experiments, each performed in triplicate. ^∗p < 0.05 vs. control cells; ^#p < 0.05 vs. CTN treated cells.