Table 4

Effect of supplementation of soy aglycons of isoflavone on antioxidative capacities of rat liver extracts

Determinations

Rats with different treatments

Items

Sham

OVX

OVX/LSAI

OVX/HSAI

SOD (Unit)

21.81 ± 9.44

14.84 ± 8.95

25.55 ± 11.62

18.44 ± 9.40

Catalase (Unit)

6.80 ± 1.60^b

5.46 ± 2.36^b

8.14 ± 1.59^ab

8.47 ± 0.87^a

GSH Px (Unit)

0.30 ± 0.12

0.53 ± 0.32

0.38 ± 0.35

0.54 ± 0.44

Trolox equivalent (millimole/l)

187.25 ± 46.60^ab

140.00 ± 20.51^b

181.2 ± 24.00^ab

213.14 ± 21.13^a

TBARS (nanomole MDA/ml)

82.84 ± 5.68^b

94.70 ± 1.62^a

82.76 ± 3.73^b

86.56 ± 4.92^b

Chelating iron (%)

74.60 ± 6.04^b

77.75 ± 5.62^ab

82.32 ± 2.25^a

81.01 ± 1.94^a

POV (%)

94.13 ± 1.15

94.20 ± 1.00

93.29 ± 1.47

94.30 ± 0.97

Inhibition of conjugated diene peroxide formation (%)

24.30 ± 6.10

23.88 ± 5.03

22.61 ± 6.37

22.37 ± 8.40

^{a, b}Means (± SD, n = 10) in the same row with different superscripts differ significantly (P < 0.05). SAI: soy aglycons of isoflavone; Sham: negative control; OVX: overiectomized rats as positive control; OVX/LSAI: overiectomized rats with low level of SAI supplementation; OVX/HSAI: overiectomized rats with high level of SAI supplementation; SOD: superoxide dismutase; GSH Px: glutathione peroxidase; TBARS: thiobarbituric acid-reactive substance; POV: peroxide value.

Lien et al. Nutrition & Metabolism 2009 6:15   doi:10.1186/1743-7075-6-15