Lethal dysregulation of energy metabolism during embryonic vitamin E deficiency
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چکیده
منابع مشابه
Creatine and glycocyamine metabolism in rabbits in vitamin E deficiency.
As is well known, many animals, when deprived of vitamin E (cr-tocopherol), develop a paralysis of the voluntary muscles (1). The partly grown rabbit becomes completely helpless in 3 to 4 weeks. The progress of the disease is characterized by histological changes and alterations in chemical composition. Thus muscle creatine declines considerably (2), in rats even before any abnormality in struc...
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Vitamin B(12) (cobalamin, Cbl) is required for cellular metabolism. It is an essential coenzyme in mammals for two reactions: the conversion of homocysteine to methionine by the enzyme methionine synthase and the conversion of methylmalonyl-CoA to succinyl-CoA by the enzyme methylmalonyl-CoA mutase. Symptoms of Cbl deficiency are hematological, neurological and cognitive, including megaloblasti...
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Selenium deficiency and vitamin E deficiency both affect xenobiotic metabolism and toxicity. In addition, selenium deficiency causes changes in the activity of some glutathione-requiring enzymes. We have studied glutathione metabolism in isolated hepatocytes from selenium-deficient, vitamin E-deficient, and control rats. Cell viability, as measured by trypan blue exclusion, was comparable for a...
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Although vitamin E has been known as an essential nutrient for reproduction since 1922, we are far from understanding the mechanisms of its physiological functions. Vitamin E is the term for a group of tocopherols and tocotrienols, of which alpha-tocopherol has the highest biological activity. Due to the potent antioxidant properties of tocopherols, the impact of alpha-tocopherol in the prevent...
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Patients with subacute combined degeneration who smoked had significantly lowered plasma thiocyanate levels than control smokers, but plasma thiocyanate levels in non-smoking patients with neurological disease due to vitamin B(12) deficiency were not significantly different from control values. The results provide no support for the hypothesis that chronic cyanide intoxication is responsible fo...
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ژورنال
عنوان ژورنال: Free Radical Biology and Medicine
سال: 2017
ISSN: 0891-5849
DOI: 10.1016/j.freeradbiomed.2017.01.020