TABLE 2.

The levels of oxidant and antioxidant parameters in hippocampal tissues.

Analyzed parameters	Young	Old	Vehicle	D-gal
TAC [U/mg protein]	2.011 ± 0.111	1.531 ± 0.118a	1.888 ± 0.140	1.350 ± 0.092a,c
Total SOD [U/mg protein]	1.648 ± 0.106	1.377 ± 0.115	1.619 ± 0.138	1.178 ± 0.077a,c
CAT [U/mg protein]	7.631 ± 0.630	6.29 ± 0.64	6.674 ± 0.612	4.116 ± 0.307a,b,c
ROS [AFU/mg protein]	100 ± 7.84	172.37 ± 14.8a	107.82 ± 11.48	204.61 ± 17.01a,c
H2O2 [nmol/L]	55.626 ± 7.318	75.893 ± 8.521	61.907 ± 9.668	97.737 ± 7.548a,c
MDA [nmol/mg protein]	0.619 ± 0.066	1.233 ± 0.073a	0.746 ± 0.106	1.507 ± 0.146a,c

Hippocampal tissues were from rats aged 3 months (young), 18 months (old), and vehicle- or D-gal-treated rats. n = 8–11 rats/group (for ROS assay, n = 5–6 rats/group). ^aP < 0.05 when compared with young group. ^bP < 0.05 when compared with old animals. ^cP < 0.05 when compared with vehicle-treated control group; one-way ANOVA with Bonferroni’s t-test.