Table 2.

Frequency of histopathological changes in the liver of C57BL/6 mice in the experimental groups.

Lesions	CG N = 8 (%)	VG N = 8 (%)	QG N = 8 (%)	CSG N = 8 (%)	QCSG N = 8 (%)
Hydropic degeneration	8 (100)	8 (100)	8 (100)	8 (100)	8 (100)
Sinusoidal congestion/hyperemia	0 (0.0)	1 (12.5)	1 (12.5)	6 (75.0)	1 (12.5)
Bleeding focus	0 (0.0)	0 (0.0)	0 (0.0)	2 (25.0)	0 (0.0)
Granulomas	0 (0.0)	0 (0.0)	0 (0.0)	6 (75.0)	0 (0.0)
Inflammatory reaction	0 (0.0)	2 (25.0)	1 (12.5)	7 (87.5)	1 (12.5)
Fibrosis	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Necrosis	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)

CG: control group; VG: vehicle group; QG: quercetin group; CSG: cigarette smoke group; QCSG: quercetin and cigarette smoke group.