Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1996-9-12
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0007-1048
pubmed:author
pubmed:issnType
Print
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
950-4
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Clearance of human factor XIa-inhibitor complexes in rats.
pubmed:affiliation
Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't