Plasmin generation and fibrin(ogen)olysis following desmopressin infusion.
Desmopressin acetate (DDAVP) is known to stimulate the release of tissue-type plasminogen activator (t-PA) from endothelial cells, but it is unclear whether the increased t-PA actually elicits the plasmin generation and fibrin(ogen)olysis in the circulating blood. We measured plasma levels of plasmin-alpha 2-plasmin inhibitor complex, fibrinogen degradation products (FgDP) and fibrin degradation products (FbDP) following desmopressin infusion in 19 patients with bleeding disorders or thrombophilia. Administration of desmopressin (0.3-0.4 microgram/kg) produced a 4.0-fold increase in plasmin-alpha 2-plasmin inhibitor complex at 30 min, whereas neither FgDP nor FbDP was elevated significantly. These findings indicate that desmopressin infusion provokes the generation of plasmin in vivo, but most of the plasmin generated is complexed to alpha 2-plasmin inhibitor and does not degradate fibrin or fibrinogen.
Takahashi
H
H
Department of Internal Medicine, Niigata University School of Medicine, Japan.
Tatewaki
W
W
Wada
K
K
Niwano
H
H
Hanano
M
M
Shibata
A
A
D000933:Antifibrinolytic Agents / Q000378:metabolism; D001778:Blood Coagulation Disorders / Q000378:metabolism; D003894:Deamino Arginine Vasopressin / Q000008:administration & dosage / Q000494:pharmacology*; D005337:Fibrin / Q000378:metabolism; D005338:Fibrin Fibrinogen Degradation Products / Q000378:metabolism; D005340:Fibrinogen / Q000378:metabolism; D005341:Fibrinolysin / Q000378:metabolism*; D005342:Fibrinolysis / Q000187:drug effects*; D006801:Humans; D007262:Infusions, Intravenous; D010959:Tissue Plasminogen Activator / Q000378:metabolism; D000979:alpha-2-Antiplasmin
D000933:Antifibrinolytic Agents; D005338:Fibrin Fibrinogen Degradation Products; D000979:alpha-2-Antiplasmin; C037742:plasmin-plasmin inhibitor complex; D005337:Fibrin; D005340:Fibrinogen; D010959:Tissue Plasminogen Activator; D005341:Fibrinolysin; D003894:Deamino Arginine Vasopressin