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 (ăl′fə-tō-kŏf′ə-rôl′, -rōl′)
An alcohol, C29H50O2, that is one of the components of vitamin E and is present in vegetable oils, nuts, and seeds or produced synthetically. It is the predominant form of vitamin E in the human body and in supplements.
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In the European Union, adult recommendations previously ranged from 4 to 25 mg a-tocopherol equivalents (a-TE)/day for men and from 3 to 12 mg a-TE/day for women.
To test for specificity of LBE-induced ROS formation, the HT-29 cells were co-treated with LBE and one of the following anti-oxidants, N-acetyl cysteine, glutathione, a-Tocopherol or ascorbic acid, with results demonstrating significant reduction in ROS formation.
The entrapment efficiencies of a-tocopherol in the polymeric matrix were approximately 89% and 95% for nanoparticles with an 8% and 16% [alpha]-tocopherol theoretical loading, respectively.
It was clear that the DPNR serum extracts contained a-tocopherol and a, y, 5 molecule forms of tocotrienols.
5% ferulic acid to a solution of 15% L-ascorbic acid (vitamin C) and 1% a-tocopherol (vitamin E) stabilized the formulation and, more notably, doubled photoprotection to skin from fourfold to eightfold thus making the topically applied formulation a much better skin-protective agent.
Epicatechin, (+)-catechin, epigallocatechin-gallate (EGCG), a-tocopherol, superoxide dismutase assay kit.
The control solution was prepared in a similar manner without the addition of any antioxidant, while a-tocopherol and butylated hydroxyanisole (BHA) at 200 ug per flask was used as a standard for comparison.
Nature's most important weapon in defence of lipid peroxidation is the a-tocopherol vitamin E.
Recent work has demonstrated that exogenous treatments of either a-tocopherol or [gamma]-tocopherol attenuate EtOH-induced changes in membrane fatty acid composition and EtOH-induced changes in brain morphology.
The a-tocopherol replenished cigarettes reduced and/or eliminated "smoker's hangover", smoker's cough and throat/voice raspiness/hoarseness.