News tagged with vitamin e
It's rubbed on the skin to reduce signs of aging and consumed by athletes to improve endurance but scientists now have the first evidence of one of vitamin E's normal body functions.
Medical research Dec 20, 2011 | 4.8 / 5 (16) | 4 |
Taking a specific form of a vitamin E supplement can accelerate the health benefits that occur when people quit smoking, new research suggests. In the small study, improvement in blood vessel function associated with the ...
Health Apr 23, 2013 | 5 / 5 (2) | 0 |
Despite concerns that have been expressed about possible health risks from high intake of vitamin E, a new review concludes that biological mechanisms exist to routinely eliminate excess levels of the vitamin, and they make ...
Health Apr 15, 2013 | not rated yet | 1 |
Researchers have identified an elusive anti-cancer property of vitamin E that has long been presumed to exist, but difficult to find.
Cancer Mar 14, 2013 | 5 / 5 (1) | 0 |
Vitamin E in diet protects against many cancers, form commonly used in supplements has no such benefit
Next time you need to choose between vegetable oil and margarine in that favorite recipe, think about your health and reach for the oil.
Health Apr 23, 2012 | 5 / 5 (1) | 0 |
(HealthDay) -- Vitamin E may stimulate cells that result in bone loss, a new study suggests.
Medical research Mar 04, 2012 | 4.4 / 5 (7) | 2 |
(Medical Xpress) -- Taking vitamin E supplements appear to increase a mans risk of prostate cancer, according to a study that appears in the Oct. 12 issue of the Journal of the American Medical Association.
Cancer Oct 26, 2011 | 5 / 5 (1) | 6 |
In a trial that included about 35,000 men, those who were randomized to receive daily supplementation with vitamin E had a significantly increased risk of prostate cancer, according to a study in the October 12 issue of JAMA.
Cancer Oct 11, 2011 | 5 / 5 (4) | 7 |
A natural form of vitamin E called alpha-tocotrienol can trigger production of a protein in the brain that clears toxins from nerve cells, preventing those cells from dying after a stroke, new research shows.
Medical research Jul 05, 2011 | 4.5 / 5 (2) | 0 |
Ten weeks of preventive supplementation with a natural form of vitamin E called tocotrienol in dogs that later had strokes reduced overall brain tissue damage, prevented loss of neural connections and helped sustain blood ...
Cardiology Jul 05, 2011 | 5 / 5 (1) | 0 |
Long-term, regular use of vitamin E in women 45 years of age and older may help decrease the risk of chronic obstructive pulmonary disease (COPD) by about 10 percent in both smokers and nonsmokers, according to a study conducted ...
Health Jun 16, 2011 | not rated yet | 0 |
(PhysOrg.com) -- For some time it has been believed that vitamin E, selenium and soy were natural ways to prevent prostate cancer. However, a new study published in the Journal of Clinical Oncology shows that these supple ...
Cancer May 06, 2011 | 3 / 5 (2) | 2 |
In contrast to previous preliminary data, use of vitamin E or the diabetes drug metformin was not superior to placebo on a measured outcome for treating nonalcoholic fatty liver disease in children and adolescents, according ...
Diseases, Conditions, Syndromes Apr 26, 2011 | 4 / 5 (1) | 0 |
A potential new way to fight obesity-related illness has been uncovered, thanks to serendipitous research led by investigators at the Case Western Reserve University School of Medicine.
Overweight and Obesity Apr 23, 2013 | 5 / 5 (1) | 0
High consumption of vitamin E either from diet or vitamin supplements may lower the risk of liver cancer, according to a study published July 17 in the Journal of the National Cancer Institute.
Cancer Jul 17, 2012 | 4 / 5 (1) | 0
Vitamin E is the collective name for a set of 8 related α-, β-, γ-, and δ-tocopherols and the corresponding four tocotrienols, which are fat-soluble vitamins with antioxidant properties. Of these, α-tocopherol (also written as alpha-tocopherol) has been most studied as it has the highest bioavailability.
It has been claimed that α-tocopherol is the most important lipid-soluble antioxidant, and that it protects cell membranes from oxidation by reacting with lipid radicals produced in the lipid peroxidation chain reaction. This would remove the free radical intermediates and prevent the oxidation reaction from continuing. The oxidised α-tocopheroxyl radicals produced in this process may be recycled back to the active reduced form through reduction by other antioxidants, such as ascorbate, retinol or ubiquinol. However, the importance of the antioxidant properties of this molecule at the concentrations present in the body are not clear and it is possible that the reason why vitamin E is required in the diet is unrelated to its ability to act as an antioxidant.. Other forms of vitamin E have their own unique properties. For example, γ-tocopherol (also written as gamma-tocopherol) is a nucleophile that may react with electrophilic mutagens; and the tocotrienols having specialized roles in protecting neurons from damage, cancer prevention and cholesterol reduction by inhibiting the activity of HMG-CoA reductase[16-1];δ-tocotrienol blocks processing of sterol regulatory element‐binding proteins (SREBPs)[16-1].However, the roles and importance of all of the various forms of vitamin E are presently unclear, and it has even been suggested that the most important function of vitamin E is as a signaling molecule, and that it has no significant role in antioxidant metabolism.
Most studies about vitamin E have supplemented using only the synthetic alpha-tocopherol, but doing so leads to reduced serum gamma- and delta-tocopherol concentrations. Moreover, a 2007 clinical study involving synthetic alpha-tocopherol concluded that supplementation did not reduce the risk of major cardiovascular events in middle aged and older men. For more info, read article tocopherol.
For more information about Vitamin E, read the full article at
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