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1.
Obstetrics, Gynecology and Reproduction ; 16(5):588-599, 2022.
Article in English | EMBASE | ID: covidwho-2204433

ABSTRACT

The von Willebrand factor (vWF) is a multimeric plasma glycoprotein, which quantification has important prognostic value. The current literature review demonstrates a relationship between the disease severity and vWF level. For example, von Willebrand disease is characterized by a quantitative/qualitative genetic vWF deficiency resulting in potentially developed massive bleeding, which knowledge can prevent development of formidable complications. We should also not forget about an opportunity of developing acquired Willebrand syndrome most often occurring in response to autoimmune diseases. A marked vWF increase during pregnancy may evidence about developing preeclampsia, whereas in newborns exposed to additional risk factors, it can lead to thrombosis. In cancer patients, a substantially elevated vWF level correlates with low survival, especially in those with ovarian cancer, glioblastomas, esophageal and lung cancer. The emergence of a novel coronavirus infection COVID-19 allowed us to take a fresh look at prognostic value of vWF, because numerous studies show that increased blood plasma vWF:Ag is associated with more adverse outcome in patients with COVID-19. Here, we demonstrate an importance of determining vWF level, because early diagnostics and treatment can improve the outcomes of all such patients. Copyright © 2022 Obstetrics, Gynecology and Reproduction. All rights reserved.

2.
Obstetrics, Gynecology and Reproduction ; 16(2):204-212, 2022.
Article in Russian | EMBASE | ID: covidwho-1957619

ABSTRACT

The main role of platelets is traditionally assigned to participation in hemostasis reactions. In recent years, the data have appeared on the non-hemostatic platelet-related role and their active participation in inflammatory reactions. These platelet functions are predetermined by their ability to activate and secrete various immunomodulatory cytokines and chemokines. In addition, activated platelets can directly interact with viral receptors. Recently, there has been growing the knowledge regarding platelet-related regulation of diverse cell types. The result of this interaction is, among others, the formation of platelet-leukocyte aggregates, the focusing of neutrophils at the sites of injury, and generation of a scaffold for developing extracellular traps. Thus, platelets are not only participants in coagulation processes, but also important players in the inflammatory process. This lecture details the issues of platelets controlling and modulating host response to viral infection, as well as potential targets for therapeutic intervention.

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