Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5738910.17816/kazmj57389Research ArticleAbout the content of fibrinogen in the plasma of patients with stomach cancerLusP. V.<p>Second Department of Surgery; Department of Experimental and Clinical Coagulology</p>info@eco-vector.comKiev Institute for Advanced Training of DoctorsInstitute of Experimental and Clinical Surgery and Hematology of the USSR Academy of Medical Sciences2901196647140420401202104012021Copyright © 2021, Lus P.V.2021<p>The assumption that normally two types of thrombin A and B and the corresponding two fibrinogens are involved in blood coagulation, was expressed in 1945 by Lyons. In his opinion, each individual thrombin cannot convert fibrinogen to fibrin. Thrombin A initially catalyzes the conversion of fibrinogen A to fibrinogen B, which is converted to fibrin under the influence of thrombin B. Thus, Lyons considers fibrinogen B as an intermediate stage in the formation of fibrin (prіofibrin).</p>Kazan Medical archiveКазанский медицинский архив