Thromb Haemost 1966; 15(03/04): 403-412
DOI: 10.1055/s-0038-1649441
Originalarbeiten — Original Articles — Travaux Originaux
Schattauer GmbH

A Modified Two-Stage Assay Method for Tissue-Thromboplastin (TPLN)

N. R Kale*
1   Chemistry Department II, Karolinska Institutet, Stockholm, Sweden
› Author Affiliations
Further Information

Publication History

Publication Date:
27 June 2018 (online)

Summary

A two-stage method employing purified clotting factors for the assay of tissue-TPLN is described in detail. The rate of prothrombin activation is determined in the presence of optimum amounts of factors V, VII, X and Ca++. The activation of prothrombin is arrested by addition of EDTA or STI, and the thrombin formed is assayed by the clotting method. The method is rapid, sensitive, reproducible and can differentiate between the tissue-TPLN activity of intact lipo-protein and the procoagulant activity of the phospholipids.

* Present Address: Department of Chemistry, University of Poona, Poona-7, India


 
  • References

  • 1 Alkjaersig N, Deutsch E, Seegers WH. Prothrombin derivatives and the inhibition of thrombin formation with soybean trypsin inhibitor. Amer. J. Physiol 180: 367 1955;
  • 2 Biggs R. Thromboplastin general considerations. Thrombos. Diathes. haemorrh. (Stuttg.) 2nd. Suppl. 09: 149 1962;
  • 3 Blombäck B, Blombäck M. Purification of human and bovine fibrinogen. Arkiv Kemi 10: 415 1956;
  • 4 Blombäck B, Blombäck M. Purification and stabilization of factor Y. Nature (Lond.) 198: 886 1963;
  • 5 Brodthagen H. The preparation of prothrombin free ox-plasma in the estimation of prothrombin. Scand. J. clin. Lab. Invest 05: 376 1953;
  • 6 Deutsch E, Irsigler K. Enzymic and clotting activity of tissue extracts. Thrombos. Diathes. haemorrh. (Stuttg.) 2nd Suppl. 09: 189 1962;
  • 7 Dyckerhoff H, Marx R, Ludwig B. Über den Wirkungsmechanismus und die Verwendbarkeit einiger blutgerinnungshemmender organischer Substanzen. Z. ges. exp. Med 110: 412 1942;
  • 8 Fuchs HJ. Wichtige methodische Einzelheiten bei Blutgerinnungsuntersuchungen sowie eine Isolierungsmethodik des physiologischen gerinnungshemmenden Faktors (Antiprothrombin) aus Blut und Gewebe. Biochem. Z 222: 470 1930;
  • 9 Glendening MB, Page EW. The site of inhibition of blood clotting by soybean trypsin inhibitor. 30: 1298 1951;
  • 10 Magnusson S. Fractination of prothrombin preparations. Thrombos. Diathes. haemorrh. (Stuttg.) (Suppl. 01) 229 1962;
  • 11 McClaughry RI, Seegers WH. Prothrombin, thromboplastin Ac-globulin and platelet accelerator: Quantitative interrelationships. Blood 05: 303 1950;
  • 12 Marciniak E, Seegers WH. A second enzyme from prothrombin. Canad. J. Biochem 40: 597 1962;
  • 13 Milstone JH. Outstanding characteristics of thrombokinase isolated from bovine plasma. J. Gen. Physiol 47-2: 315 1963;
  • 14 Owren PA. The coagulation of blood. Investigations on a new clotting factor. Acta med. scand. (Suppl. 194) 106 1947;
  • 15 Purcell GM, Barnhart MI. Pro thrombin activation with Cathepsin-C: Biochim. biophys. Acta (Amst.) 78: 800 1963;
  • 16 Quick AJ. Thromboplastin preparation and assay in Haemorrhagic Diseases. 375 Lea & Febiger; Philadelphia: 1959
  • 17 Seegers WH. The purification of prothrombin. Record. Chem. Progr. Kresge-Hooker Sci. Lib 13: 143 1952;
  • 18 Shulmann NR, Hearon JZ. Kinetics of Conversion of prothrombin by biological activators. J. biol. Chem 238: 155 1963;
  • 19 Ware AG, Seegers WH. Two-stage procedure for the quantitative determination of prothrombin concentration. Amer. J. clin. Pathol 19: 471 1949;