Table 2. Liver/body weight ratio and results of biochemical analyses according to the duration of DEN administration in each group.

At 10 weeks of DEN administration
Diet	n	Body weight (g)		Liver weight (g)		Liver/body weight (%)		ALT (U/L)	T.bilirubin (mg/dl)	Ammonia (µg/dl)
3% Casein	5	427±31.1		11±1.7		2.6±0.4		59.2±13.48	0.16±0.05	211.8±55.94
3% BCAA	5	420±29.8		9.9±1.2		2.3±0.2		52.6±7.3	0.1±0.00	193.6±23.92
6% BCAA	5	417±20.2		10.3±1.6		2.5±0.3		70±15.59	0.16±0.05	247.25±17.27
At 14 weeks of DEN administration
Diet	n	Body weight (g)	Liver weight (g)		Liver/body weight (%)		ALT (U/L)		T.bilirubin (mg/dl)	Ammonia ( µg/dl)
3% Casein	5	463.9±42.3	22.1±5.2		4.8±1.1		126.8±70.46		0.42±0.18	448.4±68.96
3% BCAA	5	464.4±39.6	20.1±4.9		4.3±0.8		105.6±49.45		0.32±0.16	347.2±80.01 *
6% BCAA	5	450±30.2	19.2±3.2		4.3±0.9		109.6±29.67		0.38±0.13	244±45.73 ***
At 16 weeks of DEN administration
Diet	n	Body weight (g)	Liver weight (g)		Liver/body weight (%)		ALT (U/L)		T.bilirubin (mg/dl)	Ammonia ( µg/dl)
3% Casein	5	484.7±51.6	27±3.8		5.6±1.0		152.2±61.73		1.45±0.65	415.8±66.27
3% BCAA	5	464.6±36.3	25.6±2.2		5.5±0.8		117±34.63		0.76±0.22 *	361±36.57
6% BCAA	5	457.4±43.7	20.7±3.1		4.5±0.7 *		134.6±23.95		0.6±0.37 *	274.6±32.99 **
At 19 weeks of DEN administration
Diet	n	Body weight (g)	Liver weight (g)		Liver/body weight (%)		ALT (U/L)		T.bilirubin (mg/dl)	Ammonia ( µg/dl)
3% Casein	5	494.9±34.1	25.2±3.7		5.1±1.0		122.4±37.75		0.24±0.05	368.6±56.56
3% BCAA	5	515.1±26.2	33.1±7.7		6.5±1.7		170±32.52		0.25±0.06	349.4±28.39
6% BCAA	5	504.4±51.9	31.1±8.7		6.2±1.6		119.2±12.66		0.4±0.16	282.8±30.7 *

Values shown are means ± SD.

^*Significantly different from the 3% casein group at P<0.05.

^**Significantly different from the 3% casein group at P<0.005.

^***Significantly different from the 3% casein group at P<0.0005.