Linked Life Data

6301579

Source:http://linkedlifedata.com/resource/pubmed/id/6301579

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1983-6-23
pubmed:abstractText
Platelet concentrates stored at 22 degrees C have a marked decrease in their aggregation response to adenosine diphosphate (ADP) or epinephrine but a normal response to these agents when used as a pair. Since platelet stimulation involves exposure of receptors for fibrinogen, we studied fibrinogen binding to platelets from fresh and stored concentrates. Following stimulation with 10 microM ADP or 20 microM epinephrine, platelet suspensions from fresh concentrates bound 125I-fibrinogen in a reaction that reached completion within 30 min. Significantly less binding occurred in suspensions from platelet concentrates that had been stored for 5 days at 22 degrees C. When stimulated by ADP and epinephrine as a pair (2 microM each), binding of fibrinogen to platelets was complete within 10-15 min and was not significantly decreased in suspensions from stored concentrates. We also investigated the effect of storage on the glycoprotein IIb-IIa complex, thought to be a specific receptor for fibrinogen on the platelet surface. Binding of a monoclonal antibody specific for this complex (B59.2) to platelet suspensions was unaffected by 5 days of storage. Furthermore, B59.2 inhibited aggregation, secretion, and fibrinogen binding of fresh and stored platelets stimulated with the pair of agents just as it did with single agents. We conclude that storage for 5 days at 22 degrees C impairs the exposure of fibrinogen receptors on platelets in response to ADP or epinephrine when used as single agents, without affecting the glycoprotein IIb-IIIa complex quantitatively. The function of the receptor is normal in response to the pair of agents.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1054-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Exposure of fibrinogen receptors on fresh and stored platelets by ADP and epinephrine as single agents and as a pair.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't