Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-2-4
pubmed:abstractText
Smith-Lemli-Opitz syndrome (SLOS) patients have increased 7- and 8-dehydrocholesterol (DHC) concentrations. Using gas chromatography-mass spectrometry with selected ion monitoring we investigated whether storage time (24 h, 7 and 30 days, and 22 months at room temperature or at 4 degrees C) affected DHC concentrations in whole blood spots (WBSs) from SLOS patients and normal controls. Our results suggest that WBS sterol analysis can be used for SLOS screening and possibly related inborn errors of sterol metabolism with a 100% sensitivity and specificity on specimens stored for up to 30 days, either at room temperature or 4 degrees C. After 22 months of storage at both temperature SLOS samples can be indistinguishable from control samples. Therefore, great caution should be used to exclude SLOS by sterol analysis of WBSs stored for a long time.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1570-0232
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
766
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
365-70
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Effects of sample storage on 7- and 8-dehydrocholesterol levels analysed on whole blood spots by gas chromatography-mass spectrometry-selected ion monitoring.
pubmed:affiliation
Dipartimento di Biochimica e Biotecnologie Mediche, Università di Napoli Federico II, Naples, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't