Linked Life Data

17685239

Source:http://linkedlifedata.com/resource/pubmed/id/17685239

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2007-8-9
pubmed:abstractText
C18-sphingosine 1-phosphate (C18-SPP) is a sphingolipid with important functional and structural roles in cells. In this paper we report a new capillary electrophoresis technique that is coupled to a laser-induced fluorescence detection (CE-LIF) method to quantify the level of C18-SPP in biological samples. The method utilizes a commercial standard C17-sphingosine 1-phosphate (C17-SPP) derivatized with naphthalene-2,3-dicarboxaldehyde (NDA), a fluorogenic dye used to label primary amines. The detection limit for the C17-SPP NDA was 0.54 fmol. We quantified the C18-SPP in leukemic human cells before and after irradiation by gamma rays. We demonstrated that the amounts of this sphingolipid decreased after the irradiation. In a second part of this work, we used the technique to evaluate the ability of a novel transparent fused-silica capillary, which allows the use of fused-silica capillaries without burning a window. Solarization, homogeneity, and sensitivity were studied using this capillary. The results demonstrate that this new durable capillary can provide a sensitive and reproducible quantitation procedure for CE-LIF studies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1946-4940
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
25-31
pubmed:dateRevised
2009-9-11
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Analysis of sphingosine 1-phosphate by capillary electrophoresis coupled to laser-induced fluorescence detection: use of a transparent fused-silica capillary.
pubmed:affiliation
Université Paul Sabatier, IMRCP, Toulouse, France.
pubmed:publicationType
Journal Article