Inhibitory spectrum of alpha 2-plasmin inhibitor.
نویسندگان
چکیده
منابع مشابه
Evaluation of fibrinolytic therapy by measuring cross-linked fibrin derivatives and plasmin-alpha 2-plasmin inhibitor complex in plasma.
Plasma levels of alpha 2-plasmin inhibitor (alpha 2PI), plasmin-alpha 2PI complex and cross-linked fibrin derivatives (XDP) were measured in 8 patients (12 episodes) with thromboembolic disorders on the initial administration of urokinase. In conjunction with a decrease in plasma alpha 2PI activity and antigen, plasmin-alpha 2PI complex increased following urokinase infusion in all cases except...
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When blood plasma containing the NH2-terminal 12-residue peptide (N-peptide) of alpha 2-plasmin inhibitor (alpha 2PI; alpha 2-antiplasmin) was clotted in the presence of calcium ions, the N-peptide and alpha 2PI were cross-linked to fibrin by activated coagulation factor XIII. The amount of N-peptide cross-linked to fibrin was proportional to the concentration of N-peptide present in plasma. On...
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The site of synthesis of alpha 2-plasmin inhibitor (alpha 2-PI), a physiologic inhibitor of plasmin, is not known with certainty. We have studied the production and secretion of alpha 2-PI by three established human liver cell lines derived from hepatocellular carcinoma and hepatoblastoma (Hep G2, Hep 3B, and PLC/PRF/5). As measured by a specific radioimmunoassay, the titer of alpha 2-PI increa...
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The fibrinolytic system of a patient with congenital deficiency of a2-proteinase (plasmin) inhibitor (a2Pl) was studied. The patient’s whole blood clot formed in vitro was lysed rapidly in several hours on incubation. This accelerated in vitro fibrinolysis was suppressed by an addition of purified a2Pl. The degree of suppression was proportional to the amount of a2PI added. In spite of the acce...
متن کاملKinetics of plasmin inhibition in the presence of a synthetic tripeptide substrate. The reaction with pancreatic trypsin inhibitor and two forms of alpha 2-plasmin inhibitor.
The progressive inhibition of plasmin by pancreatic trypsin inhibitor and by alpha 2-plasmin inhibitor in the presence of D-valyl-L-leucyl-L-lysine 4-nitroanilide was investigated. The kinetics with plasmin were compared with those with miniplasmin. The kinetic properties of two functionally different forms of alpha 2-plasmin inhibitor described by Clemmensen [(1979) in The Physiological Inhibi...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1979
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.76.4.2013