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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1977-6-30
pubmed:abstractText
The effects of altered fibrinogen concentrations on fibrinogen synthesis in rabbits were evaluated by determining the rate of appearance of [75Se]selenomethionine (75SeM) in circulating fibrinogen. Fibrinogen levels were maintained at twice normal by infusion of homologous fibrinogen for either 1 or 6 days before the intravenous injection of 20 micronCi of 75SeM, and the rate of appearance of labeled fibrinogen was measured during the subsequent 24 h. In both groups, synthesis was unchanged. Five hours after induction of partial defibrinogenation by the infusion of bovine thrombin, fibrinogen synthesis was increased threefold. Stimulation was not attributable to decreased fibrinogen concentrations; synthesis was increased equally when levels were maintained above normal by infusion of fibrinogen before administration of thrombin. Heat-inactivated thrombin and diisopropylfluorophosphate-inactivated thrombin did not stimulate fibrinogen synthesis. Thrombin produced elevated titers of fibrinogen-fibrin degradation products (FDP-fdp). However, fibrinogen synthesis was not increased in rabbits that had received FDP-fdp from thrombin-treated donors. These data suggest that neither the fibrinogen concentration nor FDP-fdp influenced fibrinogen synthesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0002-9513
pubmed:author
pubmed:issnType
Print
pubmed:volume
232
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
H478-84
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Fibrinogen synthesis in rabbits: effects of altered levels of circulating fibrinogen.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.