Table 1. Intracellular ROS, MDA and oxidative stress parameters in normal rat kidney proximal cells (NRK-52^E) intoxicated by uranyl acetate (U).

Parameters	Control	U (200 μM)	U (400 μM)	U (800 μM)
ROS (100%)	100 ± 3.21	122 ± 0.78*	156 ± 2.33**	321 ± 0.75***
MDA (nmol per mg prot)	9.18 ± 0.03	24.23 ± 0.31*	31.72 ± 0.04**	40.32 ± 0.27**
GSH (nmol per mg prot)	22.56 ± 0.76	18.07 ± 0.67*	16.54 ± 0.78*	11.23 ± 0.39**
SOD (unit per mg prot)	1.27 ± 0.51	0.95 ± 0.71*	0.81 ± 0.91**	0.64 ± 0.37**
CAT (unit per mg prot)	4.60 ± 0.27	3.81 ± 0.57*	2.67 ± 0.83**	1.21 ± 0.61***