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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1990-4-9
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pubmed:abstractText |
A quantitative assay for 4-hydroxybutyric acid was developed using D6-4-hydroxybutyric acid as an internal standard. 4-Hydroxybutyric acid was isolated by liquid chromatography and the amount quantified by selected ion monitoring, ammonia chemical ionization gas chromatography/mass spectrometry of the trimethylsilyl derivatives. The concentrations of 4-hydroxybutyric in control physiological fluids were: 2.64 +/- 3.46 mmol mol-1 creatinine in urine, 1.09 +/- 2.87 mumol l-1 in plasma, 0.98 +/- 1.17 mumol l-1 in cerebrospinal fluid and 1.28 +/- 0.47 mumol l-1 in amniotic fluid. The concentration of 4-hydroxybutyric acid in the amniotic fluid from a pregnancy at risk for 4-hydroxybutyric aciduria was 2.30 mumol l-1, indicating an unaffected fetus. The stable isotope dilution assay of 4-hydroxybutyric acid in physiological fluid samples is a rapid, sensitive and accurate method for quantification, as well as a valuable technique for the prenatal diagnosis of 4-hydroxybutyric aciduria.
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pubmed:grant | |
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 |
Feb
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pubmed:issn |
0887-6134
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
19
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
89-93
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2407302-Acidosis,
pubmed-meshheading:2407302-Adult,
pubmed-meshheading:2407302-Amniocentesis,
pubmed-meshheading:2407302-Child,
pubmed-meshheading:2407302-Child, Preschool,
pubmed-meshheading:2407302-Chromatography, Liquid,
pubmed-meshheading:2407302-Female,
pubmed-meshheading:2407302-Gas Chromatography-Mass Spectrometry,
pubmed-meshheading:2407302-Humans,
pubmed-meshheading:2407302-Hydroxybutyrates,
pubmed-meshheading:2407302-Indicators and Reagents,
pubmed-meshheading:2407302-Infant,
pubmed-meshheading:2407302-Pregnancy,
pubmed-meshheading:2407302-Prenatal Diagnosis,
pubmed-meshheading:2407302-Radioisotope Dilution Technique,
pubmed-meshheading:2407302-Sodium Oxybate
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pubmed:year |
1990
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pubmed:articleTitle |
Stable isotope dilution analysis of 4-hydroxybutyric acid: an accurate method for quantification in physiological fluids and the prenatal diagnosis of 4-hydroxybutyric aciduria.
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pubmed:affiliation |
Kimberly H. Courtwright and Joseph W. Summers Metabolic Disease Center, Baylor University Medical Center, Dallas, Texas 75246.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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