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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1994-11-23
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pubmed:abstractText |
alpha-Lipoic acid, an essential cofactor in mitochondrial dehydrogenases, has recently been shown to be a potent antioxidant in vitro, as well as being capable of regenerating vitamin E in vitro. In this study, using a new animal model for rapid vitamin E deficiency in adult animals and a new technique for tissue extraction of oxidized and reduced alpha-lipoic acid, we examined the antioxidant action of alpha-lipoic acid in vivo. Vitamin E-deficient adult hairless mice displayed obvious symptoms of deficiency within five weeks, but if the diet was supplemented with alpha-lipoic acid the animals were completely protected. At five weeks on a vitamin E-deficient diet animals exhibited similar decreases in tissue vitamin E levels, whether supplemented or unsupplemented with alpha-lipoic acid: vitamin E levels in liver, kidney, heart, and skin decreased 70 to 85%; levels in brain decreased only 25%. These data show that there was no effect of alpha-lipoic acid supplementation on vitamin E tissue concentrations, arguing against a role for alpha-lipoic acid in regenerating vitamin E in vivo.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
14
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pubmed:volume |
204
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
98-104
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:7945398-Animals,
pubmed-meshheading:7945398-Body Weight,
pubmed-meshheading:7945398-Diet,
pubmed-meshheading:7945398-Kidney,
pubmed-meshheading:7945398-Liver,
pubmed-meshheading:7945398-Mice,
pubmed-meshheading:7945398-Mice, Hairless,
pubmed-meshheading:7945398-Myocardium,
pubmed-meshheading:7945398-Skin,
pubmed-meshheading:7945398-Thioctic Acid,
pubmed-meshheading:7945398-Tissue Distribution,
pubmed-meshheading:7945398-Vitamin E,
pubmed-meshheading:7945398-Vitamin E Deficiency
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pubmed:year |
1994
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pubmed:articleTitle |
Alpha-lipoic acid supplementation prevents symptoms of vitamin E deficiency.
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pubmed:affiliation |
Department of Molecular and Cell Biology, University of California at Berkeley, 94720-3200.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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