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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1983-2-14
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pubmed:abstractText |
A dose-dependent change was observed in the disposition of 14C-labeled ethylene glycol (EG) after iv administration of 20, 200, 1000, and 2000 mg/kg to Fischer 344 rats. The part of the dose expired as CO2 decreased from 39% at 20 and 200 mg/kg to 26% at 1000 and 2000 mg/kg, while urinary excretion of radiocarbon increased from 35 to 56%. The increase in urinary 14C was almost entirely attributable to [14C] glycolate, which comprised 20% of the dose in 24 h at the two higher dose levels and only 2% at the lower doses. High doses of EG limited the processes responsible for glycolate metabolism, supporting the idea that this acid is a major contributing factor to the acute toxicity of EG. Compensatory urinary excretion of glycolate resulted in minimal dose-dependent effects on 14C blood clearance. Blood clearance of 14C occurred in an initial rapid phase (half-life, 3-5 h), when plasma was comprised predominantly of ethylene glycol, that persisted for 12 h at 20 mg/kg EG and 30 h at 2000 mg/kg. The dose-dependent profile of EG metabolism argues against the use of very high chronic doses in studies intended to estimate health risks of long-term, low-level exposure to EG.
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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 |
Sep
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pubmed:issn |
0098-4108
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
397-409
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7175970-Animals,
pubmed-meshheading:7175970-Blood Proteins,
pubmed-meshheading:7175970-Chromatography, High Pressure Liquid,
pubmed-meshheading:7175970-Dose-Response Relationship, Drug,
pubmed-meshheading:7175970-Ethylene Glycol,
pubmed-meshheading:7175970-Ethylene Glycols,
pubmed-meshheading:7175970-Female,
pubmed-meshheading:7175970-Injections, Intravenous,
pubmed-meshheading:7175970-Male,
pubmed-meshheading:7175970-Oxidation-Reduction,
pubmed-meshheading:7175970-Protein Binding,
pubmed-meshheading:7175970-Rats,
pubmed-meshheading:7175970-Rats, Inbred F344,
pubmed-meshheading:7175970-Time Factors
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pubmed:year |
1982
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pubmed:articleTitle |
Dose-dependent disposition of ethylene glycol in the rat after intravenous administration.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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