Table 1

Effect of 12 wk α-tocopherol supplementation (E+) or restriction (E-) on α-tocopherol concentrations in plasma and tissue of rats1,2,3

Tissue
E+ (100 mg all-rac-α-tocopherol)
Control (30 mg all-rac-α-tocopherol)
E- (<10 mg total tocopherol)

n = 10
n = 13
n = 10

Plasma (μmol/L)
36 ± 6.0
20 ± 1.2
< 1.0
Liver (nmol/g protein)
2.08 ± 0.08
0.68 ± 0.04
0.007 ± 0.0005
Kidney (nmol/g protein)
1.97 ± 0.51
1.41 + 0.55
ND4
Brain (nmol/g protein)
1.90 ± 1.19
1.29 ± 0.29
0.59 ± 0.19
Testis (nmol/g protein)
1.19 ± 0.06
1.00 ± 0.06
0.026 ± 0.002

1All 3 diets contained 460 μg phylloquinone/kg of diet

2Plasma and tissue α-tocopherol in the E+ group are higher than those in the Control and E- groups (P ≤ 0.05)

3Values are mean ± SEM

4Not detectable

Tovar et al. Nutrition & Metabolism 2006 3:29   doi:10.1186/1743-7075-3-29