tocopherol


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Related to 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

/to·coph·er·ol/ (to-kof´er-ol) any of a series of structurally similar compounds, some of which have biological vitamin E activity.
α-tocopherol , alpha tocopherol the most prevalent form of vitamin E in the body and that administered as a supplement; often used synonymously with vitamin E. Also used as the acetate and acid succinate esters.

tocopherol

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

tocopherol

See vitamin E.

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.

tocopherol

generic term for vitamin E and related compounds, e.g. alpha-tocopherol (wheat germ oil extract)

tocopherol

an alcohol isolated from wheat germ oil or produced synthetically; it has the properties of vitamin E.

α-tocopherol
vitamin E.
References in periodicals archive ?
The quantification of tocopherol and tocotrienol in samples were performed using Waters[R] HPLC linked to fluorescence detector (WATERS 2575) and an autosampler (WATERS 2707) as illustrated in Figure 5.
1993) who used two-dimensional chromatography to determine that [alpha]-tocopherol was predominant in young corn, wheat, barley, and pea plants, whereas other tocopherols appeared as the plants aged.
Huang and Huang (2004) compared the supplementation of two levels of tocopherol in diets (11 and 105 mg [kg.
High blood levels of selenium may reduce the incidence of both BCC and SCC by about 60%, whereas serum concentrations of carotenoids or alpha tocopherol are not associated with later skin cancer incidence.
Researchers evaluated the association between serum tocopherol and tocotrienol levels and cognitive impairment in 140 participants in the CAIDE study, which examined Finnish men and women at several time points during midlife and re-examined survivors in 1998 and 2005-2008.
Tocotrienols--but not tocopherols and, in particular, not alpha-tocopherol--have repeatedly been shown to inhibit proliferation and induce cancer cell death, and cells with the greatest degree of malignancy are most sensitive to the apoptotic action of tocotrienol.
This investigation was undertaken to obtain information about the chemical composition and oxidative stability of safflower seed oil of four of the potentially most useful varieties of safflowers that can be cultivated in Iran and to determine the oil composition in terms of fatty acid, tocopherol and sterol contents and to evaluate oil composition-oxidative stability relationship.
This small study shows that rectal administration of d-alpha tocopherol appears to exert protective effects against ulcerative colitis (UC) in patients with mild and moderately active disease.
The lighter side of vitamin E, gamma tocopherol, is powerful due to its antioxidant activity.
They were randomized to 1 of 3 treatments for 6 weeks: treatment 1, RRR-[alpha]T (500 mg/ day); treatment 2, mixed tocopherol enriched with [gamma]T [75 mg [alpha]T, 315 mg [gamma]T, and 110 mg [delta]-tocopherol ([delta]T)/day, all natural RRR-isomers]; and treatment 3, placebo (pure soybean oil containing <1 mg of tocopherols).
But another tocopherol, gamma-tocopherol, which is found in foods but not normally in supplements, may have an impact on prostate cancer.