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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1980-7-28
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pubmed:abstractText |
Leucine metabolism in vivo can be determined from a primed, continuous infusion of L-[1-13C]leucine by measuring, at isotopic steady state, plasm [-13C]leucine enrichment, expired 13CO2 enrichment, and CO2 production rate. With an appropriate priming dose of L-[1-13C]leucine and NaH13CO3, isotopic steady state is reached in less than 2 h, and the infusion is completed in 4 h. The method can determine rates of leucine turnover, oxidation, and incorporation into protein with typical relative uncertainties of 2, 10, and 4%, respectively. The method requires no more than 1 ml of blood and uses stable isotope rather than radioisotope techniques. Thus, the method is applicable to studies of human beings of all ages. L-[1-13C]leucine may be infused with a second amino acid labeled with 15N for simultaneous determination of the kinetics of two amino acids.
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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 |
0002-9513
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
238
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
E473-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6769340-Adolescent,
pubmed-meshheading:6769340-Adult,
pubmed-meshheading:6769340-Carbon Dioxide,
pubmed-meshheading:6769340-Carbon Radioisotopes,
pubmed-meshheading:6769340-Humans,
pubmed-meshheading:6769340-Infusions, Parenteral,
pubmed-meshheading:6769340-Leucine,
pubmed-meshheading:6769340-Male,
pubmed-meshheading:6769340-Mathematics,
pubmed-meshheading:6769340-Respiration,
pubmed-meshheading:6769340-Time Factors
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pubmed:year |
1980
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pubmed:articleTitle |
Measurement of leucine metabolism in man from a primed, continuous infusion of L-[1-3C]leucine.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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