Immediate effects of heparin and LMW heparin on some platelet and endothelial derived factors.
Thromb Res
; 51(2): 209-17, 1988 Jul 15.
Article
em En
| MEDLINE
| ID: mdl-2847353
ABSTRACT
Heparin and a low molecular heparin fragment, injected intravenously in volunteers, increased the plasma concentrations of platelet factor 4, but did not induce platelet activation as judged from excretion of 2,3-dinor-TxB2 (a major thromboxane A2 metabolite) and beta-thromboglobulin (btg) in urine and from btg levels in plasma. Heparin prolonged, within the normal range, the bleeding time in all six subjects. Platelet aggregation in platelet rich plasma was potentiated by both heparins, but platelet number, mean platelet volume and platelet distribution width were not affected. No evidence for endothelial release of prostacyclin was obtained as judged from urinary excretion of 2,3-dinor-6-keto-PGF1 alpha (a major prostacyclin metabolite), and plasma concentrations of tissue plasminogen activator, its inhibitor (PAI-1) and the von Willebrand-factor were unchanged.
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Base de dados:
MEDLINE
Assunto principal:
Plaquetas
/
Endotélio Vascular
/
Heparina
/
Heparina de Baixo Peso Molecular
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
1988
Tipo de documento:
Article