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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1976-12-1
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pubmed:abstractText |
Growing male rats were fed purified diets that contained either 0.6% or 0.1% calcium to investigate the relationship of calcium intake to the uptake, tissue distribution, and excretion of 109Cd. An equal number of rats were fed either the 0.6 or 0.1% calcium diets for 4 wk before they were used for experiments. In the first experiment 11 rats from each dietary group were administered 5 muCi 109Cd by stomach tube and were then maintained in metabolism cages for 72 hr. Animals fed the low-calcium diet took up more 109Cd, as significantly higher levels of radioactivity were found in the intestinal mucosa, serum, lungs, liver, kidneys, and urine and a significantly lower level was found in the feces. Higher levels of 109Cd, associated with low-molecular-weight proteins that may be related to the absorption process, were found in the intestinal mucosa of the low-calcium group. In the second experiment 10 rats from each dietary group were administered 5 muCi 109Cd by subcutaneous injection and then maintained in a metabolism cage for 72 hr. No significant differences were found in the distribution or excretion of 109Cd except for the lungs where radioactivity was greater in the low-calcium group. The results of the study indicate that the enhanced cadmium toxicity observed in calcium-deficient animals exposed to the heavy metal is the result of an increased uptake from the small intestine.
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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 |
Jul
|
pubmed:issn |
0098-4108
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
1055-66
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:966316-Animals,
pubmed-meshheading:966316-Body Weight,
pubmed-meshheading:966316-Cadmium,
pubmed-meshheading:966316-Calcium,
pubmed-meshheading:966316-Diet,
pubmed-meshheading:966316-Feces,
pubmed-meshheading:966316-Male,
pubmed-meshheading:966316-Radioisotopes,
pubmed-meshheading:966316-Rats
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pubmed:year |
1976
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pubmed:articleTitle |
Metabolism of 109Cd in rats fed normal and low-calcium diets.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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