[Fibrinolytic system of animals repeatedly and chronically administered plasminogen tissue activator]. 1981

E E Shimonaeva, and L V Liutova, and G V Andreenko

Fibrinolytic system was studied in rats under various conditions of intravenous administration of the plasminogen tissue activator (RTA). Two administrations of the activator with an interval of 10 min did not cause an additional activation of fibrinolysis as compared with single treatment. Increase in amount of administrations up to four times within a day (an interval for 30 min) as well as chronic administrations of PTA within 5 days did not cause also any significant and long-term action on the animal fibrinolytic system. Efficiency of blood plasma antiactivator was decreased after repeated and chronic PTA administrations. Insensitivity of the healthy animal fibrinolytic system to repeated and chronic administration of PTA depended apparently on binding of the activator to inhibitors and on its rapid excretion from circulation.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D008297 Male Males
D010960 Plasminogen Activators A heterogeneous group of proteolytic enzymes that convert PLASMINOGEN to FIBRINOLYSIN. They are concentrated in the lysosomes of most cells and in the vascular endothelium, particularly in the vessels of the microcirculation. Extrinsic Plasminogen Activators,Plasminogen Activator,Uterine-Tissue Plasminogen Activator,Uterine Tissue Plasminogen Activator
D005338 Fibrin Fibrinogen Degradation Products Soluble protein fragments formed by the proteolytic action of plasmin on fibrin or fibrinogen. FDP and their complexes profoundly impair the hemostatic process and are a major cause of hemorrhage in intravascular coagulation and fibrinolysis. Antithrombin VI,Fibrin Degradation Product,Fibrin Degradation Products,Fibrin Fibrinogen Split Products,Degradation Product, Fibrin,Degradation Products, Fibrin,Product, Fibrin Degradation
D005340 Fibrinogen Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products. Coagulation Factor I,Factor I,Blood Coagulation Factor I,gamma-Fibrinogen,Factor I, Coagulation,gamma Fibrinogen
D005342 Fibrinolysis The natural enzymatic dissolution of FIBRIN. Fibrinolyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000979 alpha-2-Antiplasmin A member of the serpin superfamily found in plasma that inhibits the lysis of fibrin clots which are induced by plasminogen activator. It is a glycoprotein, molecular weight approximately 70,000 that migrates in the alpha 2 region in immunoelectrophoresis. It is the principal plasmin inactivator in blood, rapidly forming a very stable complex with plasmin. alpha 2-Plasmin Inhibitor,Serpin F2,alpha(2)-Plasmin Inhibitor,alpha-2 Antiplasmin,alpha 2 Antiplasmin,alpha 2 Plasmin Inhibitor
D012712 Serum Globulins All blood proteins except albumin ( Euglobulin,Euglobulins,Pseudoglobulin,Pseudoglobulins,Serum Globulin,Globulin, Serum,Globulins, Serum
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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