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Thromb Haemost 1973; 30(02): 381-392
DOI: 10.1055/s-0038-1649088
DOI: 10.1055/s-0038-1649088
Original Article
Studies on Activator Formation in Human Plasma with Streptokinase
I. Experimental StudiesFurther Information
Publication History
Received for publication
08 December 1972
Accepted for publication
16 May 1973
Publication Date:
24 July 2018 (online)
Summary
The plasminogen-streptokinase complex called “activator” was present in diluted plasma in the form of a largely dissociated mixture. More than ⅞ of the streptokinase and plasminogen molecules were available for further activator formation.
The activator is probably a dissociated complex of the formula
Streptokinase + Plasminogen ⇄ Activator.
The fact that an increase in activator concentration by x times is obtained by multiplying either the streptokinase content by the factor y or the plasminogen concentration by the same factor y would point to a kinetic effect along the lines of the mass action law.
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References
- 1 Astrup T, and Müllertz S. 1952; The fibrin plate method for estimating fibrinolytic activity. Archives of Biochemistry and Biophysics 40: 346.
- 2 Blix S. 1962; The proactivator of the fibrinolytic system in human plasma; the quantitative determination and its clinical application. Acta medica scandinavica 171: 83.
- 3 Blix S. 1964; The proactivator (plasminogen) determination in plasma during fibrinolytic therapy. Acta medica scandinavica 176: 649.
- 4 Blix S. 1969; The activator time. A method for control of activator activity during thrombolytic therapy. Scandinavian Journal of Haematology 6: 221.
- 5 Christensen L. R. 1949; Methods for measuring the activity of components of the streptococcal fibrinolytic system and streptococcal desoxyribonuclease. Journal of Clinical Investigation 28: 163.
- 6 Davies M. C, Englert M. E, and de Renzo E. C. 1964; Interaction of streptokinase and plasminogen observed in the ultracentrifuge under a varity of experimental conditions. Journal of Biological Chemistry 239: 2651.
- 7 Hartert H. 1951; Die Thrombelastographie : Eine Methode zur physikalischen Analyse des Blutgerinnungs Vorgangs. Z. ges. exp. Med 117: 189.
- 8 Heimburger N, and Schwick E. 1962; Die Fibrinagarelektrophorese. 2. Mitteilung: Untersuchungen zum Wirkungsmechanismus der Streptokinase. Thrombosis et Diathesis Haemorrhagica 7: 444.
- 9 Hummel B. C. W, Buck F. F, and de Renzo E. C. 1966; Interaction of streptokinase and human plasminogen. Journal of Biological Chemistry 241: 3474.
- 10 Johnson A. J, and Tillet W. S. 1952; The lysis in rabbits of intravascular blood clots by the streptococcal fibrinolytic system (streptokinase). Journal of Experimental Medicine 95: 449.
- 11 Kline D. L, and Fishman J. B. 1957; Plasmin: The humoral protease. Annals of the New York Academy of Sciences 68: 25.
- 12 Loomis E. C. 1955. Estimation of fibrinolysin activity of human plasma or serum. In: Tocantins L. M. (ed.) The Coagulation of Blood. Grune & Stratton; New York.: 163.
- 13 Martin M. 1969; Semiquantitative Plasminogenbestimmung mit Hilfe des Thrombelasto-graphen. Eine Methode zur Kontrolle der Streptokinasebehandlung. Thrombosis et Diathesis Haemorrhagica 22: 121.
- 14 de Renzo E. C. 1961; Chemistry of fibrinolysis (Discussion). Thrombosis et Diathesis Haemorrhagica Suppl. 1 and 6: 134.
- 15 Robbins K. C, Summaria L, Elwyn D, and Barlow E. H. 1965; Further studies on the purification of human plasminogen and plasmin. Journal of Biological Chemistry 240: 541.
- 16 Schwick G. 1964. Biochemie der Fibrinolyse. In: Thrombolyse-Therapie mit Streptokinase. Behringwerk-Mitteilungen; 103.
- 17 Schwick G. 1967. Biochemie der Fibrinolyse. In: Kunzer W, Winckelmann G, and Walther Ch. (eds.) Biologie des Plasmins; Purpura-Schönlein-Henoch, Erythrozytäre Gerinnung saktivität. Verh. d. Dtsch. Arbeitsgemeinschaft f. Blutgerinnungsforschung anläßlich der 9. Tagung in Freiburg/Br. vom 2. bis 3. April 1965. F. K. Schattauer-Verlag; Stuttgart,: 26.
- 18 Ts’ao C. H, and Kline D. L. 1969; Plasminogen activator formed by reaction of streptokinase with human plasminogen. Journal of applied Physiology 26: 634.
- 19 de Vreker R. A. 1965; A technique for routine evaluation of plasminogen in humans during streptokinase therapy. Acta haematologica 34: 305.
- 20 de Vreker R. A. 1964. Bestimmung von Parametern der Fibrinolyse durch halbautomatische Technik. Symposium-Vortragsreihe: Automation in der analytischen Chemie. Technicon GmbH.; Frankfurt: 523.