Table 5.

Effects of different treatments on the activities of CAT (U/mg protein), SOD (U/mg protein), GSH-Px (U/mg protein) and levels of MDA (nmol/mg protein) and TAOC (U/mg protein) in the livers of aging mice

Group	MDA	TAOC	CAT	SOD	GSH-Px
Normal control	1.43 ± 0.10	1.22 ± 0.15	36.18 ± 0.30	171.39 ± 16.44	399.67 ± 16.92
Model control	2.78 ± 0.09d	0.96 ± 0.11c	28.05 ± 3.28d	100.89 ± 3.77d	343.89 ± 19.44a
Positive control	1.34 ± 0.09b	2.08 ± 0.33bd	49.67 ± 2.24bd	116.71 ± 8.18ad	479.49 ± 23.56bd
RIP (25 mg/kg)	2.22 ± 0.14ad	1.09 ± 0.14c	35.51 ± 1.34b	107.36 ± 10.86d	345.65 ± 12.35c
RIP (50 mg/kg)	2.01 ± 0.10ab	1.59 ± 0.17ac	39.41 ± 1.97bc	124.62 ± 11.53ad	378.94 ± 15.05a
RIP (100 mg/kg)	1.80 ± 0.10ac	1.78 ± 0.22bc	42.57 ± 2.19bd	136.92 ± 9.15bd	414.85 ± 19.95dc

Data were presented as means ± S.D. (n = 10) and evaluated by one-way ANOVA followed by the Duncan’s multiple-range tests

^a P < 0.05, compared with model group

^b P < 0.01, compared with model group

^c P < 0.05, compared with normal group

^d P < 0.01, compared with normal group