tocopherol

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Related to Alpha tocopherol: vitamin E

tocopherol

 [to-kof´er-ol]
an alcohol isolated from wheat germ oil or produced synthetically; it has the properties of vitamin E. In animals it is needed in the diet to ensure reproduction, but its role in humans is unclear.
alpha tocopherol a tocopherol isomer that is the most prevalent form of vitamin E occurring in the body and the form administered as a supplement. In nature, it usually occurs with β- and γ-tocopherols. The term is often used synonymously with vitamin E. See vitamin.

to·coph·er·ol (T),

(tō-kof'ĕr-ol),
1. Name given to vitamin E by its discoverer, but now a generic term for vitamin E and compounds chemically related to it, with or without biologic activity; similar in chemical structure and properties to vitamins K and coenzyme Q.
2. A methylated tocol or methylated tocotrienol.

tocopherol

(tō-kŏf′ə-rôl′, -rōl′)
n.
Any of a group of closely related, fat-soluble alcohols constituting vitamin E and similar compounds.

tocopherol

Vitamin E, see there.

to·coph·er·ol

(T) (tŏ-kof'ĕr-ol)
1. A generic term for vitamin E and compounds chemically related to it, with or without biologic activity.
2. A methylated tocol or methylated tocotrienol.

tocopherol

One of the group of substances constituting vitamin E.

tocopherol

see VITAMIN E.
References in periodicals archive ?
A recent study published in the Journal of the American Medical Association (JAMA) indicated that vitamin E (alpha tocopherol) might improve the functionality of those with mild to moderate Alzheimer's disease (AD).
Studies show that levels of gamma tocopherol are a better predictor of lower heart attack risk than alpha tocopherol. (21-25) Gamma tocopherol is a superior antioxidant that traps reactive oxygen species, reactive nitrogen species, and other dangerous molecules triggered by the after-meal glucose burst.
Hitherto, alpha tocopherol supplementation alone and in combination with ascorbic acid significantly protected the experimental animals against oxidative stress induced by restraint stress in mesh wire restrainers in our study.
What researchers fail to comprehend is that giving aged men a single antioxidant like alpha tocopherol is not going to reverse seven decades of genetic damage to prostate DNA.
The optimal dose of natural mixed tocopherols for 1.5 g of EPA+DHA would contain 215 mg gamma, 86 mg delta and 50 IU of alpha tocopherol All these factors must considered when choosing a supplement that contains omega-3, GLA, and or vitamin E.
Animals were fed a high fat diet and were either supplemented with alpha tocopherol, a tocotrienol rich fraction from rice bran or didesmethyl tocotrienol (d-P(25)-T3).
For the unfortunate men who received only alpha tocopherol in the SELECT study, the suppression of gamma tocopherol that occurred in their bodies presumably exposed them to higher levels of cancer-promoting byproducts of arachidonic acid.
While alpha tocopherol inhibits the production of new free radicals, gamma tocopherol is required to trap and neutralize existing free radicals.
This might account for the null effects of alpha tocopherol supplementation in Mild Cognitive Impairment and Alzheimer's Disease.
For participants whose serum alpha tocopherol levels at the beginning of the study were among the top 20% of participants, the risk of developing pancreatic cancer was 48% lower than those whose levels were in the lowest fifth.
If one were to rely only on synthetic alpha tocopherol, the minimum daily dose needed has been shown to exceed 800 IU, (11,12) far greater than the 400 IU ingested every other day by the subjects in this poorly designed study.