Table 1. Mean ± SD of dilatation , degeneration, vacuolization and debris of renal tubular cells .

Groups	Vacuolization	Degeneration	Debris	Dilatation	Score
Control: 0	10±5	10.6±5.5	2.31±1.5	1.3±0.7	4.2±2.2
I: at 10	15±12	15±11	3.5 ±1.6	2.3±2.2	6.44±4.9
II: at 50	34±15	24.6±15.7	18.3±7.5	6.3±9	15.4±8.5
III: at 150	55±25	50±22.8	22.5±13	9.5±6	25.8±12.7
Total	28.5±23.6	25.08±21	11.6±11	4.8±6.4	13±11.5
F statistic	9.55	8.02	10.56	2.47	8.78
P value	0.0001	0.002	0.001	0.09	0.001