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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1992-11-19
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pubmed:abstractText |
The effect of platelet pretreatment with moderate amounts of 1,2-dioctanoylglycerol on subsequent thrombin-induced activation and its correlation with the degree of protein phosphorylation is studied. Protein kinase C preactivation (treatment with 1 microM dioctanoylglycerol for 20 min) significantly reduces thrombin-promoted platelet aggregation, cytosolic calcium-rise, ATP-secretion and, albeit to a lesser extent, protein phosphorylation. Exposure of platelets to dioctanoylglycerol brings about a transient phosphorylation of a 47 kDa protein and a slight but more persistent phosphorylation of proteins of approximate molecular mass 26 and 68 kDa. It is hypothesized that the latter phosphoproteins are responsible for the inhibition of the thrombin-promoted platelet activation. Agonist-evoked aggregation is more affected by a long (20 min) rather than a short (1 min) pretreatment with dioctanoylglycerol, showing no correlation with the phosphorylation of the major substrates of protein kinase C.
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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/1,2-dioctanoylglycerol,
http://linkedlifedata.com/resource/pubmed/chemical/Adenosine Triphosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Blood Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Diglycerides,
http://linkedlifedata.com/resource/pubmed/chemical/Platelet Aggregation Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase C,
http://linkedlifedata.com/resource/pubmed/chemical/Thrombin
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pubmed:status |
MEDLINE
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pubmed:issn |
0895-7479
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
14
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
11-9
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:1403847-Adenosine Triphosphate,
pubmed-meshheading:1403847-Blood Proteins,
pubmed-meshheading:1403847-Calcium,
pubmed-meshheading:1403847-Diglycerides,
pubmed-meshheading:1403847-Enzyme Activation,
pubmed-meshheading:1403847-Humans,
pubmed-meshheading:1403847-Molecular Weight,
pubmed-meshheading:1403847-Phosphorylation,
pubmed-meshheading:1403847-Platelet Activation,
pubmed-meshheading:1403847-Platelet Aggregation,
pubmed-meshheading:1403847-Platelet Aggregation Inhibitors,
pubmed-meshheading:1403847-Protein Kinase C,
pubmed-meshheading:1403847-Thrombin
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pubmed:year |
1992
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pubmed:articleTitle |
Inhibition of thrombin-induced platelet activation by dioctanoylglycerol pretreatment is not correlated with the 47 kDa protein phosphorylation.
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pubmed:affiliation |
Department of Biological Chemistry, University of Padova, Italy.
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pubmed:publicationType |
Journal Article,
Comparative Study
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