Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7 Suppl 1
pubmed:dateCreated
1994-12-27
pubmed:abstractText
Since the discovery of muscle carnitine palmitoyltransferase deficiency in 1973, a dozen separate defects of mitochondrial fatty acid beta-oxidation in man have been identified. With the exception of medium-chain acyl-CoA dehydrogenase (MCAD) deficiency, which occurs with a frequency approaching 1:10,000 among Caucasians of Northern European origin, the other defects are quite rare. Collectively, however, they are common causes of disease resembling Reye syndrome in early life, and some have a later and more chronic presentation with cardiomyopathy and skeletal muscle weakness. They also represent a small, but significant, proportion of cases of sudden and unexplained death within the first 2 years of life. Diagnosis of these disorders has become increasingly sophisticated, with the advent of new analytical technologies and an increased awareness of the appropriate clinical and laboratory investigations needed in order to evaluate potential defects of this pathway. The combination of provocative testing (e.g., carnitine loading, phenylpropionic acid loading, long-chain fat loading) and advanced analytical techniques for the measurement of blood and urinary metabolites (e.g., tandem fast atom bombardment-mass spectrometry, stable isotope dilution gas chromatography-mass spectrometry) permits a specific diagnosis in the case of several, although not all, of the disorders of this pathway. Methods for the measurement of all of the enzymes of beta-oxidation are now available to enhance this diagnostic capability. There remain, however, many patients in whom clinical and laboratory signs point to a defect in beta-oxidation, but in whom no specific diagnosis has yet been made.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0340-6199
pubmed:author
pubmed:issnType
Print
pubmed:volume
153
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S49-56
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
New developments in the diagnosis and investigation of mitochondrial fatty acid oxidation disorders.
pubmed:affiliation
Division of Gastroenterology, Nutrition, and Lipid-Heart Research, Children's Hospital of Philadelphia, PA 19104.
pubmed:publicationType
Journal Article, Review