Table 1.

Histological Score of Rat Livers After 30 min of Ischaemia Followed by 7 Days of Reperfusion.

Group	Neutrophilic infiltration score (0–4)	Average score	Criteria for assessing neutrophil infiltration
Saline control (n = 5)	2	1.8	Neutrophil infiltration expressed as neutrophil count per 50 high-power fields 0 = <15 (none/scant) 1 = 16 to 50 (minimal) 2 = 51 to 100 (mild) 3 = 101 to 250 (moderate) 4 = >250 (severe)
	2
	1
	2
	2
Zinc (10 mg/kg) (n = 5)	1	0.6 (p = 0.016)
	1
	0
	0
	1

Group	Liver necrosis score (0–4)	Average score	Criteria for assessing liver necrosis
Saline control (n = 5)	3	2	Liver necrosis assessed as the degree of hepatocellular necrosis 0 = None 1 = Single-cell apoptosis 2 = Lobular confluent necrosis <30% 3 = Lobular confluent necrosis 31–60% 4 = Lobular confluent necrosis >60%
	2
	1
	2
	2
Zinc (10 mg/kg) (n = 5)	1	0.8 (p = 0.012)
	1
	1
	1
	0

A grading scale of 0–4, as outlined by Suzuki et al,¹⁸ was used for the histopathological analysis of neutrophil infiltration and necrosis in the liver.