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Increased plasma tissue-type plasminogen activator levels in patients with chronic thrombocytopenia.

Authors: Hanss, M  Ville, D  Dechavanne, M 
Citation: Hanss M, etal., Haemostasis. 1990;20(6):341-6.
Pubmed: (View Article at PubMed) PMID:2129164

Plasma fibrinolytic factors were measured in 14 patients with chronic idiopathic thrombocytopenic purpura (ITP), in 5 patients with chronic central thrombocytopenia and in 16 healthy volunteers. The von Willebrand factor (vWF), tissue-type plasminogen activator (t-PA) and D-dimer (DD) antigens were found to be significantly higher in both patient groups than in the control group. No difference appeared in euglobulin fibrinolytic activity and plasminogen activator inhibitor activity. The increases in both t-PA and vWF suggest the occurrence of an endothelial cell stimulation, associated with the reduction of circulating platelet number. The correlation of increased DD and t-PA levels during ITP can be the proof of a fibrinolysis activation and suggest an antifibrinolytic role of platelets at physiological concentrations. These results can justify antifibrinolytic therapy in bleeding thrombocytopenic patients.

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CRRD Object Information
CRRD ID: 11541072
Created: 2016-10-06
Species: All species
Last Modified: 2016-10-06
Status: ACTIVE



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