[Guillain-Barre syndrome associated with COVID-19].

This paper reports two cases of Guillain-Barre syndrome associated with coronavirus infection COVID-19. The clinical symptoms and neurological status of patients, the data of the additional examination and the features of the prescribed therapy are described in detail. The issue of the tropicity of the SARS-CoV-2 virus to human nervous tissue and its possible ways of affecting the peripheral nervous system is discussed.

[The myosin-activating protein kinases in human myocardium: localization and content].

Using the immunofluorescence approach, we have determined that the recently detected protein kinases, among which are RhoA-activated kinase, integrin-linked kinase, zipper interacting protein kinase, and death-associated protein kinase, which are capable of phosphorylating myosin, are localized in the Z-lines sarcomeres of human myocardium. Additionally, we studied the content of integrin-linked and zipper interacting protein kinases in human embryonic myocardium, as well as in normal and hypertrophic adult human heart. The content of these protein kinases in adult normal myocardium increases in comparison with the embryonic heart.

[Thrombolytic effect of urokinase upon various methods of administration into the body].

A preparation of urokinase, obtained from human kidney cell culture, was administered into rats at a single dose of 5,000-10,000 U/200 g of body mass in a variety of ways using intravenous, intraperitoneal and subcutaneous inoculations. After intraperitoneal and subcutaneous administrations an increase of fibrinolytic activity in blood was more long-term although less distinct; the phase of reactive hypercoagulation was only slightly detected within 24 hrs after these procedures. Thrombin-produced provocation of thrombosis led to a lesser ratio of death in these animals as compared with the animals group administered intravenously.

[Development of multiple spinocellular cancer of the skin in a patient with psoriasis].

A rare case of multiple spinocellular carcinoma is described, that developed in a patient suffering from psoriasis after PUVA therapy in the presence of a reduced function of the peripheral blood killer cells.