Table 2.

Histopathological scores of renal tubules, interstitial edema, and medullary congestion expressed as the frequency of injured animals in each group

Features groups	Tubular dilatation						Tubular vacuolation
	(0)	(1)	(2)	(3)	(4)	P	(0)	(1)	(2)	(3)	(4)	P
A	0	1	5	0	0	0.11(compared with Group C, 0.22(compared with Group D)	2	4	0	0	0	●●0.01, ♦♦0.01
B	0	0	0	2	4	** 0.01	0	0	0	6	0	** 0.01
C	0	0	4	2	0	## 0.01	0	0	4	2	0	# 0.02
D	0	0	5	1	0	## 0.01	0	0	5	1	0	## 0.01
Features groups	Tubular apoptosis						Interstitial edema
	(0)	(1)	(2)	(3)	(4)	P	(0)	(1)	(2)	(3)	(4)	P
A	2	4	0	0	0	0.07(compared with Group D)	2	4	0	0	0	●●0.01, ♦♦0.01
B	0	0	0	0	6	**0.01	0	0	0	0	6	** 0.01
C	0	0	0	3	3	●●0.01	0	0	2	4	0	##0.01
D	0	4	2	0	0	## 0.01, ▲▲0.01	0	0	3	3	0	##0.01
Features groups	Medullary congestion
	(0)			(1)		(2)	(3)		(4)		P
A	3			3		0	0		0		0.23 (compared with Group D)
B	0			0		0	0		6		** 0.01
C	0			0		4	0		2		# 0.02, ●●0.01
D	2			1		2	0		1		## 0.01

^**P=0.01 compared with Group A;

^#P<0.05,

^##P=0.01 compared with Group B;

^▲▲P=0.01 compared with Group C;

^●●p=0.01 compared with Group A;

^♦♦P=0.01 compared with Group A