Ischaemic stroke is a debilitating disease with immense personal, societal and economic impact. Thrombolysis recombinant tissue plasminogen activator remains the only approved pharmacotherapy for this disease. As each year less than 1% of eligible patients receive therapy worldwide, efficacious new therapeutics are desperately needed. Emerging evidence suggest endothelial progenitor cells (EPCs...

The gastroduodenal mucosa has a rich blood supply. An active fibrinolytic system is presumably required to maintain vascular patency, and impairment may result in reduced blood flow, focal tissue necrosis, and peptic ulcerogenesis. Tissue type and urokinase type plasminogen activator activity (expressed as mIU/mg protein) and plasminogen activator inhibitor type-1 antigen were assayed in homoge...

Bradykinin stimulates tissue plasminogen activator release from human endothelium through a flow-independent, B2 receptor-dependent mechanism. The present study tests the hypothesis that smoking impairs bradykinin-stimulated tissue plasminogen activator release. Graded doses of nitroprusside (1.6 to 6.4 microg/min), methacholine (3.2 to 12.8 microg/min), and bradykinin (100 to 400 ng/min) were ...

rDSPA alpha 1 (recombinant Desmodus salivary plasminogen activator alpha 1) is a recombinant protein corresponding to a natural plasminogen activator from the vampire bat Desmodus rotundus. The thrombolytic properties of rDSPA alpha 1 and tissue-type plasminogen activator (t-PA) were compared in a rat model of pulmonary embolism. Whole blood clots, produced in vitro and labeled with 125I-fibrin...

We studied the incidence of cerebral hemorrhage in an animal model of embolic stroke to determine the safety of aspirin, heparin, and tissue plasminogen activator therapies. We occluded the middle cerebral arteries of rabbits with labeled blood clots and administered either tissue plasminogen activator, heparin, aspirin, tissue plasminogen activator plus aspirin, tissue plasminogen activator pl...

Introduction. The most widely accepted notion of the function blood clotting factor XII (FXII, Hageman factor) is its involvement in internal pathway. However, biological role FXII diverse. Aim – to review diverse functions FXII. Main findings. a serine protease. structure has high degree homology with plasminogen, tissue plasminogen activator and urokinase activator. Activated (FXIIa) five sub...