Table 2 Histological assessment of fibrosis and inflammation in control (CTR) and bile duct ligated (BDL) rats given naltrexone or saline.

	CTR		BDL
	Saline (n = 8)	Naltrexone (n = 8)	Saline (n = 12)	Naltrexone (n = 12)
Fibrosis
Stage 0	8	8	0	4
Stage 1	0	0	2	6
Stage 2	0	0	4	2
Stage 3	0	0	6	0
Stage 4	0	0	0	0
Mean (SEM)	0.00 (0.00)	0.00 (0.00)	2.33 (0.22)*	0.83 (0.20)*†
Inflammation
Score 0	8	8	0	2
Score 1	0	0	8	6
Score 2	0	0	2	3
Score 3	0	0	2	1
Score 4	0	0	0	0
Inflammatory score
Mean (SEM)	0.00 (0.09)	0.00 (0.00)	1.50 (0.23)*	1.25 (0.25)*

*p<0.05 compared with control groups; †p<0.05 compared with BDL/saline group.