Gray and Loh (1) have shown previously that dietary ƒ¿-tocopheryl acetate (ƒ¿ TAc) brings about increases in phospholipids, total and free cholesterol in the plasma of healthy human subjects. It seemed probable that the dietary ƒ¿TAc affected the liver cell itself, the blood being merely a transport medium. This hypothesis was investigated, using rat liver homogenates from animals main tained f...

Plasma and lipoprotein a-tocopherol concentrations of four patients with familial isolated vitamin E deficiency and six control subjects were observed for 4 d after an oral dose (15 mg) of RRR-a-tocopheryl acetate labeled with six deuterium atoms (d6-tocopherol). Chylomicron d6-tocopherol concentrations were similar in the two groups. d6-Tocopherol concentrations of plasma, very low (VLDL), low...

Methods: Alpha tocopherol, gamma tocopherol, and retinol are assayed using fluorescence detection. Excitation/emission wavelengths are 295 nm/330 nm and 325 nm/470 nm for the analysis of both tocopherols and retinol, respectively. Retinol acetate is employed as the internal standard. The reversed phase method incorporates gradient elution with a mobile phase consisting of methanol and acetonitr...

A was conducted to determine the effect of vitamin E, (a-tocopherol acetate a-TOH) supplementation on the fecundity and reproductive performance of Nile tilapia Oreochromis niloticus and O. aureus. R eproductive performance was assessed in the females, in the developing eggs and in the resultant offspring, in an attempt to determine the optimum nutrition for successful spawning of O. niloticus ...

Plasma and lipoprotein alpha-tocopherol concentrations of four patients with familial isolated vitamin E deficiency and six control subjects were observed for 4 d after an oral dose (approximately 15 mg) of RRR-alpha-tocopheryl acetate labeled with six deuterium atoms (d6-tocopherol). Chylomicron d6-tocopherol concentrations were similar in the two groups. d6-Tocopherol concentrations of plasma...

The present study was conducted to compare the supplementation of natural (D-α-tocopherol) and synthetic (DL-α-tocopherol acetate) vitamin E on the growth performance, meat quality, muscular antioxidant capacity and genes expression related to oxidative status of broilers. A total of 144 1 day-old Arbor Acres broiler chicks were randomly allocated into 3 groups with 6 replicates of 8 birds each...

Tissue alpha-tocopherol concentrations were determined in 40 lambs following oral supplementation of various forms of vitamin E. Lambs were allocated to 8 dietary groups of 5 animals each and supplemented with or without equimolar amounts (300 mg equivalence) of different vitamin E compounds daily for 60 d as follows: 1) control, no supplemental vitamin E; 2) D-alpha-tocopheryl acetate; 3) DL-a...

The aim of this study was to assess the alterations in plasma, liver, and meat oxidative stability and α-tocopherol content when moderately oxidized sunflower oils were added to feeds and when feeds were supplemented with α-tocopheryl acetate (100 mg/kg) and Zn (200 mg/kg). The effects of cooking the meat and its subsequent refrigeration were also studied. When the content of primary oxidation ...

Normal, healthy, free-living adults ingested either 18 g/d olestra, with or without 1.1 mg tocopheryl acetate/ g olestra, or 18 g/d triglyceride placebo, for 16 wk in a double-blind, placebo-controlled study. Serum concentrations of a-tocopherol, a-carotene, b-carotene, lycopene, lutein/zeaxanthin, retinol and cholesterol were measured biweekly. Serum 25-hydroxyvitamin D concentration, prothrom...

The present study investigates the antioxidant potential of the ethyl acetate fraction of the aerial parts Eclipta alba L. Hassk (EAEA) which was widely used as hepatoprotective plant. EAEA was orally administered at doses of 50, 100 and 200 mg/kg for 7 days in male Charles Foster rats. The extent of hepatoprotective potential of E . alba was studied by assessing the biochemical para...