Fig. 1. Acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) activities in the cerebral cortex of adult rats from the seven experimental groups. Values are expressed
as means ± SD. DM or (DM + Se) or (DM + Vit E) or (DM + Se + Vit E) or Se or Vit E group compared to control group: ⁄
P < 0. 05; ⁄⁄P < 0.01; ⁄⁄⁄P < 0.001, (DM + Se) or (DM + Vit E)
or (DM + Se + Vit E) group compared to DM group: +
P < 0.05; ++P < 0. 01.
Table 3
Enzymatic antioxidant activities in the cerebral cortex of adult rats from the seven experimental groups.
Parameters and
treatments
Control DM DM + Se DM + Vit E DM + Se + Vit E Se Vit E
Catalasea 170.589 ± 38.432 259.045 ± 29.055⁄⁄⁄ 186.400 ± 19.329+++ 187.007 ± 18.555+++ 176.455 ± 22.146+++ 164.317 ± 23.383 164.148 ± 17.741
Superoxide
dismutaseb
28.352 ± 6.978 71.885 ± 8.902⁄⁄⁄ 40.851 ± 5.492⁄,++ 38.267 ± 4.693⁄,++ 27.993 ± 6.143+++ 29.102 ± 3.184 29.113 ± 5.407
Glutathione
peroxidasec
30.590 ± 8.712 74.125 ± 15.845⁄⁄⁄ 35.266 ± 9.277+++ 50.859 ± 9.648⁄⁄,++ 31.462 ± 6.734+++ 36.419 ± 11.265 32.740 ± 4.771
Values are expressed as means ± S.D for six animals in each group.
Comparisons are made between two groups:
DM or (DM + Se) or (DM + Vit E) or (DM + Se + Vit E) or Se or Vit E group compared to control group: ⁄
P < 0. 05; ⁄⁄P < 0.01; ⁄⁄⁄P < 0.001, (DM + Se) or (DM + Vit E) or
(DM + Se + Vit E) group compared to DM group: ++P < 0. 01; +++P < 0.001. a Catalase: lmol H2O2 degraded/min/mg protein. b Superoxide dismutase: units/mg protein.
c Glutathione peroxidase: nmoles of GSH/min/mg protein.