Lipid peroxidation and antioxidant status in colorectal cancer

Table 2 Activity of antioxidative enzymes and levels of non-enzymatic antioxidants in colorectal cancersand normal colon mucosae.

	Variable	n	Activity of antioxidative enzymes (U/g tissue)				Level of non-enzymatic antioxidants (nmol/g tissue)
			Cu, Zn-SOD	CAT	GSH-Px	GSSG-R	GSH	Vit.C	Vit.E
Histological	Adc.G2	60	304±38b	73±15a	1892±583a	759±242a	151±37	439±85a	31.9±9.5a
type/grade of	Adc.G3	6	318±48d	62±18c	2005±591c	795±228c	143±35	407±92d	29.7±9.2c
colorectal cancer	Adc. muc	15	363±72f,i	40±14f,i,k	2143±623f	880±194f	144±43	398±104f	33.5±8.5e
Clinical stage of	II	46	237±42b	76±14a	1854±552a	737±228a	174±36a	458±88a	33.1±9.1a
colorectal cancer	III	29	289±47d,g	57±16c,g	1987±699c	824±236c	156±39c	399±90d,g	29.1±9.4c
	IV	6	421±58f,i,k	33±18f,i,k	2467±368f,i	951±243f,i	150±48e	325±92f,i	13.3±10.3f,i,k
Control (normal colon mucosa)			117±25	84±17	1723±189	625±112	167±15	513±64	37.5±5.2

Statistical differences: see Table 1.