Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-4-9
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0887-6134
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
89-93
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
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.
pubmed:affiliation
Kimberly H. Courtwright and Joseph W. Summers Metabolic Disease Center, Baylor University Medical Center, Dallas, Texas 75246.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.