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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1999-2-19
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pubmed:abstractText |
Prostaglandin D synthetase (PGD-S; prostaglandin-H2 D-isomerase, EC 5,3,99,2), a 30 kDa glycoprotein also known as beta-trace protein that catalyzes the formation of prostaglandin D2 (PGD2) from PGH2, was purified to apparent homogeneity from human cerebrospinal fluid (CSF) using a two-step procedure involving HPLC on a Vydac C8 reversed-phase column and high performance electrophoresis chromatography (HPEC) using a 10% T SDS-polyacrylamide gel. The purity of PGD-S isolated from CSF was confirmed by silver stained SDS-polyacrylamide gel and direct protein microsequencing (NH2-APEAQVSVQPNFQ). A highly specific polyclonal antibody was prepared against this protein for immunoassay development. Using an ELISA, it was found that the concentration of PGD-S in CSF did not alter significantly in different pathological conditions of the central nervous system (CNS). These include dementia (n = 9), hydrocephalus (n = 4), neuropathy (n = 11), optic neuritis (n = 4), multiple sclerosis (n = 11), and demyelinating syndrome (n = 11), when compared to normal individuals (n = 12); however, the level of PGD-S in the CSF obtained from patients with brain tumor (n = 11), was reduced by as much as 2-fold when compared to control samples (n = 12) illustrating PGD-S is a potentially useful marker for brain tumor.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Intramolecular Oxidoreductases,
http://linkedlifedata.com/resource/pubmed/chemical/Lipocalins,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Markers, Biological,
http://linkedlifedata.com/resource/pubmed/chemical/prostaglandin R2 D-isomerase
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1039-9712
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
46
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
643-56
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:9844724-Amino Acid Sequence,
pubmed-meshheading:9844724-Antibody Specificity,
pubmed-meshheading:9844724-Brain Neoplasms,
pubmed-meshheading:9844724-Chromatography, High Pressure Liquid,
pubmed-meshheading:9844724-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:9844724-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:9844724-Humans,
pubmed-meshheading:9844724-Intramolecular Oxidoreductases,
pubmed-meshheading:9844724-Lipocalins,
pubmed-meshheading:9844724-Molecular Sequence Data,
pubmed-meshheading:9844724-Nervous System Diseases,
pubmed-meshheading:9844724-Tumor Markers, Biological
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pubmed:year |
1998
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pubmed:articleTitle |
Quantification of prostaglandin D synthetase in cerebrospinal fluid: a potential marker for brain tumor.
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pubmed:affiliation |
Population Council, Rockefeller University, New York, New York 10021, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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