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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1981-2-26
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pubmed:abstractText |
In vivo and in vitro studies of the metabolism of [14C]penicillic acid showed a significant uptake of penicillic acid by red blood cells and a significant increase in radioactivity associated with the membrane fraction with time (1-4 hr); however, the majority of the red blood cell activity was intracellular. The 14C-radioactivity concentration in liver fractions (1.5 percent of the administered dose 2 hr following administration) was high in the RNA-DNA and protein fractions. The level of the 14C activity associated with these fractions increased with time (24 hr). Preliminary studies of the in vivo metabolism of [14C]penicillic acid by rats showed that a significant amount of radioactivity was excreted in the urine (82 percent of the administered dose after 7 days), of which strongly acidic urinary metabolites accounted for 23 percent; weakly to moderately acidic, 60 percent; strongly basic, 2 percent; and neutral, 15 percent. Isolation and identification studies of the neutral urinary fraction indicated that the major metabolites are non-ionic macromolecules (Mr < 5000). Biliary metabolites (10 percent of the administered dose 2 hr following administration) were 28 percent strongly acidic and 72 percent weakly to moderately acidic.
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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 |
Aug
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pubmed:issn |
0146-4779
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
4
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
419-34
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7441125-Absorption,
pubmed-meshheading:7441125-Animals,
pubmed-meshheading:7441125-Bile,
pubmed-meshheading:7441125-Biotransformation,
pubmed-meshheading:7441125-Caproates,
pubmed-meshheading:7441125-Erythrocytes,
pubmed-meshheading:7441125-Female,
pubmed-meshheading:7441125-Liver,
pubmed-meshheading:7441125-Male,
pubmed-meshheading:7441125-Penicillic Acid,
pubmed-meshheading:7441125-Rats
|
pubmed:year |
1980
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pubmed:articleTitle |
In vivo and in vitro metabolism of [14C]penicillic acid.
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pubmed:publicationType |
Journal Article,
In Vitro
|