Expression and alterations of different molecular form γ-glutamyl transferase and total RNA concentration during the carcinogenesis of rat hepatoma

Table 2 Changes of total RNA concentrations and GGT specific activities at different stages of rat hepatomas

Groups	n	Total RNA (μg/mg tissue)	GGT specific activity
			Liver GGT (U/g)	Serum GGT (U/L)
Control	6	3.67 ± 0.78	1.06 ± 0.24	6.0 ± 4.8
2nd week	6	6.69 ± 6.08	4.77 ± 4.41a	20.2 ± 17.8a
4th week	6	4.81 ± 4.27	9.30 ± 1.81b	31.2 ± 28.1b
6th week	6	5.38 ± 4.84	5.95 ± 1.23b	37.8 ± 32.1b
8th week	6	9.23 ± 6.48a	10.73 ± 4.93b	53.5 ± 43.6b
10th week	6	8.37 ± 6.51a	16.03 ± 5.22b	40.6 ± 23.6b
12th week	5	8.16 ± 8.87a	15.71 ± 3.31b	38.6 ± 8.8b

^aP < 0.05,

^bP < 0.01, compared with the control group.