Bachiller

Páginas: 3 (509 palabras) Publicado: 19 de febrero de 2013
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. There are many different forms of vitamin E, of which γ-tocopherol is the most common in theNorth American diet. γ-Tocopherol can be found in corn oil, soybean oil, margarine and dressings. α-Tocopherol, the most biologically active form of vitamin E, is the second most common form ofvitamin E in the North American diet. This variant of vitamin E can be found most abundantly in wheat germ oil, sunflower, and safflower oils. It is a fat-soluble antioxidant that stops the production ofreactive oxygen species formed when fat undergoes oxidation.}
Health Effects.
While it was initially hoped that vitamin E supplementation would have a positive effect on health, research has notsupported these conclusions. Vitamin E does not decrease mortality in adults, even at large doses, and may slightly increase it. It does not improve blood sugar control in an unselected group of peoplewith diabetes mellitus or decrease the risk of stroke.] Daily supplementation of vitamin E does not decrease the risk of prostate cancer and may increase it. Studies on its role in age related maculardegeneration are ongoing as even though it is of a combination of dietary antioxidants used to treat the condition in may increase the risk.
Deficiency
Vitamin E deficiency can cause:
*spinocerebellar ataxia
* myopathies
* peripheral neuropathy
* ataxia
* skeletal myopathy
* retinopathy
* impairment of the immune response
Functions
Vitamin E has many biologicalfunctions. The antioxidant function is considered to be the most important function of vitamin E and is the one it is best known for. As it is fat-soluble, it is incorporated into cell membranes,which protects them from oxidative damage. However, there are other functions that have also been recognized to be of importance. α-Tocopherol has a regulatory effect on enzymatic activities. Vitamin E...
Leer documento completo

Regístrate para leer el documento completo.

Estos documentos también te pueden resultar útiles

  • Bachiller
  • Bachiller
  • Bachiller
  • Bachiller
  • Bachiller
  • Bachiller
  • Bachiller
  • Bachiller

Conviértase en miembro formal de Buenas Tareas

INSCRÍBETE - ES GRATIS