vitamin E


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to vitamin E: vitamin K, vitamin D

vi·ta·min E

1. Synonym(s): α-tocopherol
2. generic descriptor of tocol and tocotrienol derivatives possessing the biologic activity of α-tocopherol; contained in various oils (for example, wheat germ, cotton seed, palm, rice) and whole grain cereals where it constitutes the nonsaponifiable fraction; also contained in animal tissue (for example, liver, pancreas, heart) and lettuce; deficiency produces resorption or abortion in female rats and sterility in males. Synonym(s): antisterility factor, antisterility vitamin, fertility vitamin
Farlex Partner Medical Dictionary © Farlex 2012

vitamin E

n.
Any of several fat-soluble vitamins consisting of tocopherols, especially alpha-tocopherol, that are found chiefly in vegetable oils, nuts and seeds, wheat germ, leafy green vegetables, and milk and act as antioxidants in the body.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

vitamin E

A family of eight fat-soluble antioxidant tocopherols and tocotrienols, which are found in soybeans, nuts, wheat germ and sunflower and other oils. While vitamin E deficiency is associated with a number of neurologic and immune related disorders, vitamin E supplementation does not appear to have a positive effect on health: it does not improve control of serum glucose in diabetics; it does not alter the course of age related macular degeneration; and it may increase the risk of osteoporosis and slightly increase mortality.

Biological functions of vitamin E
•  Antioxidant (peroxyl radical scavenger);
• Acts on protein kinase C, preventing the overgrowth of smooth muscle in the embryo;
•  Downregulates scavenger receptor CD36; modulates expression of connective tissue growth factor;
• Prevents oxidation of polyunsaturated fats;
• Roles in neurologic and immune activity and platelet inhibition are ongoing.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

vi·ta·min E

(vī'tă-min)
Generic descriptor of tocol and tocotrienol derivatives possessing the biologic activity of α-tocopherol; contained in various oils (wheat germ, cottonseed, palm, rice) and whole grain cereals, where it constitutes the nonsaponifiable fraction, also in animal tissue (liver, pancreas, heart) and leafy vegetables; deficiency produces resorption or abortion in female rats and sterility in males.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

vitamin E

or

tocopherol

a fat-soluble molecule found in many plants, such as wheatgerm oil, green leafy vegetables, egg yolk, milk and meat. The vitamin is known as an antioxidant, permitting the oxidation of, for example, unsaturated fatty acids and Vitamin A in the body. A deficiency can result in sterility.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

vi·ta·min E

(vī'tă-min)
1. Synonym(s): alpha-tocopherol.
2. Generic descriptor of tocol and tocotrienol derivatives possessing the biologic activity of α-tocopherol; contained in various oils (e.g., wheat germ, cotton seed, palm, rice) and whole grain cereals where it constitutes the nonsaponifiable fraction.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about vitamin E

Q. my Dr. said to take no more than 400 iu of Vit. E. But I noticed my multiple also has 200 IU. Is this bad? I have been taking 400 units to combat Peyronies. I noticed today that my Centrum Silver also contains Vitamin E. I know taking over 400 units can be toxic, so now which way do I go from here. Thanks for any info.

A. in general, an over dose is not a very smart thing to do also in vitamins. and taking to consideration that you may have a diverse amount of vitamin E in your diet..well..you may take too much. but i have to be honest with you- i'm not a Doctor. and the one i would ask in that matter is my Doctor. all you need to do is phone him.

More discussions about vitamin E
This content is provided by iMedix and is subject to iMedix Terms. The Questions and Answers are not endorsed or recommended and are made available by patients, not doctors.
Mentioned in ?
References in periodicals archive ?
"This is the first demonstration of a unique mechanism of how vitamin E can have some benefit in terms of cancer prevention and treatment," said lead author Ching-Shih Chen, professor of medicinal chemistry and pharmacognosy at The Ohio State University and an investigator in Ohio State's Comprehensive Cancer Center.
But vitamin E enjoys a special relationship with two other antioxidants, vitamin C and alpha lipoic acid, that allow it to continue protecting the skin.5 Both vitamin C and alpha lipoic acid have the ability to take away the extra electron from a used vitamin E molecule, effectively reactivating it.6 This capacity to recycle and restore its power makes vitamin E a prominent factor in the skin's first line of defense against free radicals.
The 35,533 men at 427 sites were randomly assigned to oral selenium (200 meg/day) plus placebo, vitamin E (400 IU/day) plus placebo, both active agents, or two placebos, and were followed for a median of 5.5 years.
The incidence of prostate cancer rose significantly only in the vitamin E group.
Dietary supplementation of various levels of sunflower semi-refined oil with vitamin E caused significant changes in blood glucose level of layers (P<0.05).
If one chooses to supplement with vitamin E in the context of preventing cancer recurrence, choose carefully and only select products with a mixture of tocopherols, and optimally tocotrienols as well.
Royal Saunders and co-investigators (1987, Ohio) studied the effects on lipid peroxidation of treating experimentally injured cats with a combination of vitamin E and another antioxidant, selenium.
If vitamin E does help prevent or slow cognitive decline, it's unclear exactly how it works or if supplements make a difference.
Paul Eck, my resident nutritional expert, ready to next call the news media and tout the incredible scientific evidence of vitamin E's efficacy in circulation health.
This study looked only at vitamin E's activity with chemotherapy.
Birds treated with vitamin E also have lymphocytes labeled CD-8 that kill infected cells and help eliminate foodborne pathogens.
The Alpha-Tocopherol Beta-Carotene (ATBC) study tested a daily dose of 50 International Units (IU) of vitamin E (that's the alpha-tocopherol) on 29,000 male Finnish smokers.(2) It had no impact ...