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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
1999-3-30
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pubmed:abstractText |
A method for separating, detecting, and quantifying cholesterol hydroperoxide (Ch-OOH) based on extraction, purification by solid-phase extraction cartridge, high-performance liquid chromatography with chemiluminescent detection (HPLC-CL), and liquid chromatography-mass spectrometry has been developed for human erythrocyte membrane. We prepared standard compounds of the cholesterol 5alpha-, 7alpha-, and 7beta-hydroperoxides (Ch 5alpha-OOH, Ch 7alpha-OOH, and Ch 7beta-OOH). An octyl silica column with methanol/water/acetonitrile 89:9:2 (by vol) as eluent was used to determine Ch-OOH. HPLC-CL that incorporated cytochrome c and luminol as the post-column luminescent reagent was used. We also investigated the optimal assay conditions and how to prevent formation of artifact Ch-OOH. Analysis of erythrocyte membranes from seven healthy volunteers identified Ch 7alpha-OOH and Ch 7beta-OOH, but not Ch 5alpha-OOH, as commonly occurring components. The respective mean concentrations of Ch 7alpha-OOH and Ch 7beta-OOH were 2.5+/-1.6 and 5.4+/-3.5 pmol/mL blood.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0024-4201
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
33
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1235-40
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:9930411-Antioxidants,
pubmed-meshheading:9930411-Artifacts,
pubmed-meshheading:9930411-Cholesterol,
pubmed-meshheading:9930411-Chromatography, High Pressure Liquid,
pubmed-meshheading:9930411-Erythrocyte Membrane,
pubmed-meshheading:9930411-Humans,
pubmed-meshheading:9930411-Light,
pubmed-meshheading:9930411-Luminescent Measurements,
pubmed-meshheading:9930411-Sensitivity and Specificity
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pubmed:year |
1998
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pubmed:articleTitle |
Chemiluminescent determination of cholesterol hydroperoxides in human erythrocyte membrane.
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pubmed:affiliation |
Department of Legal Medicine, Kobe University School of Medicine, Japan. adachi@med.kobe-u.ac.jp
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pubmed:publicationType |
Journal Article
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