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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1982-8-14
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pubmed:abstractText |
1. A "new" carbon radioisotope, 11C, for use in nutritional studies is presented. It has a 20 min half-life, and decays by positron emission giving annihilation photons of 511 keV energy (Wolf & Redvanly, 1977). Thus repeated studies can be made with short time intervals and the distribution of radioactivity in the experimental animal can be detected externally. 2. 11C was produced with a tandem Van de Graaff accelerator and L-[me-11C]methionine was synthesized and used in model experiments in the pig. The tracer was administered intravenously through a catheter in the jugular vein of pigs weighing between 40 and 100 kg. In a series of experiments, one pig received a low-methionine diet supplemented with DL-methionine to give three different levels of methionine intake. 3. The radioactivity distribution between liver and muscle was measured as a function of time by external detector for 2-3 h after administration. Blood and exhaled CO2 were sampled and measured for radioactivity. 4. The results indicate that 11C is a useful radionuclide in nutritional studies in intact large domestic animals.U
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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 |
May
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pubmed:issn |
0007-1145
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
47
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
537-45
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:6805502-Animal Nutritional Physiological Phenomena,
pubmed-meshheading:6805502-Animals,
pubmed-meshheading:6805502-Body Weight,
pubmed-meshheading:6805502-Carbon Dioxide,
pubmed-meshheading:6805502-Carbon Radioisotopes,
pubmed-meshheading:6805502-Diet,
pubmed-meshheading:6805502-Half-Life,
pubmed-meshheading:6805502-Liver,
pubmed-meshheading:6805502-Methionine,
pubmed-meshheading:6805502-Models, Biological,
pubmed-meshheading:6805502-Muscles,
pubmed-meshheading:6805502-Swine,
pubmed-meshheading:6805502-Time Factors
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pubmed:year |
1982
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pubmed:articleTitle |
Short-lived radionuclides in nutritional physiology. A model study with L-[Me-11C]methionine in the pig.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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