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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1976-6-2
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pubmed:abstractText |
The experiments reported here were designed to determine if the low plasma vitamin A levels observed in zinc deficient rats are reversible as well as to examine the time required for any response. In experiment 1, rats previously zinc deficient were repleted for 6 days with a zinc sufficient diet, fed either ad libitum, or pair-fed the amount consumed by a zinc deficient group. After repletion, plasma vitamin A concentration for the zinc sufficient group returned to within normal range while the pair-fed group had a plasma vitamin A concentration intermediate between the zinc sufficient ad libitum and zinc deficient groups. The zinc sufficient ad libitum group had a lower concentration but higher total liver content of vitamin A than the other two groups. In experiment 2, the response of zinc deficient rats to intraperitoneal zinc repletion was examined daily for 7 days. There was a 3 day lag period before plasma vitamin A began to increase significantly following zinc treatment. By the fifth day, plasma vitamin A concentration increased to within the normal range. The data suggest that adequate food intake as well as zinc appears necessary to totally reverse low plasma vitamin A concentrations in zinc deficiency. Possible mechanisms are discussed.
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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 |
Apr
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pubmed:issn |
0022-3166
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
106
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
563-8
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:1255272-Animals,
pubmed-meshheading:1255272-Body Weight,
pubmed-meshheading:1255272-Deficiency Diseases,
pubmed-meshheading:1255272-Femur,
pubmed-meshheading:1255272-Male,
pubmed-meshheading:1255272-Organ Size,
pubmed-meshheading:1255272-Rats,
pubmed-meshheading:1255272-Time Factors,
pubmed-meshheading:1255272-Vitamin A,
pubmed-meshheading:1255272-Zinc
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pubmed:year |
1976
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pubmed:articleTitle |
Vitamin A metabolism during the repletion of zinc deficient rats.
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pubmed:publicationType |
Journal Article
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