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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1996-9-12
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pubmed:abstractText |
The serpins C1 esterase inhibitor (C1Inh), antithrombin (AT), alpha 1-antitrypsin (alpha 1AT) and alpha 2-antiplasmin (alpha 2AP) are known inhibitors of coagulation factor XIa (FXIa). Although initial studies suggested alpha 1AT to be the main inhibitor of FXIa, we recently demonstrated C1Inh to be a predominant inhibitor of FXIa in vitro in human plasma. The present study was performed to investigate the plasma elimination kinetics of preformed human FXIa-FXIa inhibitor complexes injected in rats. The amounts of complexes remaining in circulation were measured using enzyme-linked immunosorbent assays. The plasma half-life time of clearance (t1/2) was 98 min for FXIa-alpha 1AT complexes, whereas it was considerably shorter, i.e. 19, 18 and 15 min for FXIa-C1Inh, FXIa-alpha 2AP and FXIa-AT complexes, respectively. Thus, due to this different plasma t1/2, preferentially FXIa-alpha 1AT complexes may be detected in clinical samples. Furthermore, measuring FXIa-FXIa inhibitor complexes in patient samples may not help to clarify the relative contribution of the individual serpins to inactivation of FXIa in vivo.
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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/Antithrombin III,
http://linkedlifedata.com/resource/pubmed/chemical/Complement C1 Inactivator Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Factor XIa,
http://linkedlifedata.com/resource/pubmed/chemical/alpha 1-Antitrypsin,
http://linkedlifedata.com/resource/pubmed/chemical/alpha-2-Antiplasmin
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0007-1048
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
950-4
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:8703832-Animals,
pubmed-meshheading:8703832-Antithrombin III,
pubmed-meshheading:8703832-Complement C1 Inactivator Proteins,
pubmed-meshheading:8703832-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:8703832-Factor XIa,
pubmed-meshheading:8703832-Half-Life,
pubmed-meshheading:8703832-Humans,
pubmed-meshheading:8703832-Models, Biological,
pubmed-meshheading:8703832-Rats,
pubmed-meshheading:8703832-alpha 1-Antitrypsin,
pubmed-meshheading:8703832-alpha-2-Antiplasmin
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pubmed:year |
1996
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pubmed:articleTitle |
Clearance of human factor XIa-inhibitor complexes in rats.
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pubmed:affiliation |
Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam, The Netherlands.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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