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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1993-2-25
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pubmed:abstractText |
On the basis of the previous work by Okuma and Uchino [Blood 54, 1258-1271, 1979], three patients with myeloproliferative disorders were investigated with a special reference to arachidonate 12-lipoxygenase in their platelets. The cytosol of the patients' platelets showed a markedly reduced activity of arachidonic acid oxygenation to 12-hydroperoxy acid. A peroxidase-linked immunoassay for the 12-lipoxygenase demonstrated only 7-12% of the normal level of the enzyme protein in the cytosol fraction of platelets. Furthermore, 12-lipoxygenase mRNA level was determined quantitatively by a reverse transcriptase-polymerase chain reaction with an internal standard cRNA which was synthesized by in vitro transcription of human platelet 12-lipoxygenase cDNA with a 105-bp deletion. The 12-lipoxygenase mRNA content was 4.7 +/- 2.0 (mean +/- S.D.) ng/10(11) platelets in 13 normal subjects. In contrast, the mRNA content was as low as 0.15, 0.11 and 0.10 ng/10(11) platelets in the three patients. Taken together, the 12-lipoxygenase deficiency in these patients was attributable to the decreased 12-lipoxygenase mRNA level and thus the impaired synthesis of the enzyme protein in their platelets.
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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 |
Jan
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pubmed:issn |
0006-3002
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
|
pubmed:volume |
1180
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
243-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8422429-Antibodies, Monoclonal,
pubmed-meshheading:8422429-Arachidonate 12-Lipoxygenase,
pubmed-meshheading:8422429-Base Sequence,
pubmed-meshheading:8422429-Blood Platelets,
pubmed-meshheading:8422429-DNA, Single-Stranded,
pubmed-meshheading:8422429-Humans,
pubmed-meshheading:8422429-Immunoenzyme Techniques,
pubmed-meshheading:8422429-Molecular Sequence Data,
pubmed-meshheading:8422429-Myeloproliferative Disorders,
pubmed-meshheading:8422429-RNA, Messenger
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pubmed:year |
1993
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pubmed:articleTitle |
Decreased messenger RNA of arachidonate 12-lipoxygenase in platelets of patients with myeloproliferative disorders.
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pubmed:affiliation |
Department of Biochemistry, Tokushima University School of Medicine, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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