Fig. 4.

Changes in the rat urine volume level after the oral administration of placebo and γ-tocopherol (γ-Toc). The rats were fed a vitamin E-deficient diet (control) or a NaCl diet for 4 weeks. In each group, one subgroup was a placebo, while the others were given 10 mg (γ10), 20 mg (γ20), 40 mg (γ40) of γ-Toc. After the oral administration of single dose of the placebo or γ-Toc, the rat urine was collected for 24 h (divided into 6 h periods) and the urine volume was determined. The values are the mean ± SEM of 4–6 rats, *p<0.05 vs placebo at each time period.