CHANGES OF LIPOPEROXIDATION AND ANTIOXIDATIVE ENZYMES DURING CRUSH-SYNDROME MODELLING.

Crush-syndrome (CS) is characterized by numerous pathological deviations due to the soft tissue damage and their further reperfusion. The aim of the study was to investigate pro- and antioxidative processes during different regimens of crush syndrome. The experiment was carried out on randomly selected 200-250gr.

[Alterations of tissue blood supply of experimental animals at malignant tumor growth].

The aim of the research was to study tissue blood flow in the dynamics of malignant tumor growth (Ehrlich carcinoma of 80 mice, sarcoma--37-80 rats, 30 rabbit--Brown-Pirs carcinoma) in functionally different organs of experimental animals (mice, rats, rabbits): skeletal muscles, liver, ear, mammary gland and ciliary body of eye. The study was conducted using H clearance method. Deformability of erythrocytes was studied using filtration-photometry method.

[The role of blood rheology and micro hemocirculation in development of generalized hypoxia in crush syndrome].

Crush syndrome (CS) is a type of traumatic pathology accompanied by intoxication of organism with a heavy and specific clinical course and high lethality. Numerous damages, the most significant of which are stress, shock, pain, violation of the neurohumoral system involving the mediators of the sympathic part of vegetative nervous system, and pathological condition in which the body as a whole (generalized hypoxia) or region of the body (tissue hypoxia) is deprived of adequate oxygen supply are common in CS. The aim of the research was to study factors, which determine tissue blood and oxygen supply and to detect the possible pathogenetic mechanisms of generalized hypoxia in decompressed tissues and organs in long CS.

[Molecular mechanisms of apoptosis].

Apoptosis is the vital issue of Biology and Medicine. Recent concept of molecular and cellular mechanisms of apoptosis--a well-controlled form of cell death was reviewed. The aim of a review was to broaden knowledge of apoptosis mechanism and to reveal molecular targets for the modulation of these processes.

[The role of changes in tissue redox-status in mechanism of paraneoplasia].

To specify mechanisms of paraneoplastic alterations of redox-status of tissues in experimental malignant tumor growth, we investigated electronic paramagnetic centers of blood, skeletal muscle and liver with electronic paramagnetic resonance (EPR) method. We also studied the concentration and activity of antioxidant enzymes. Our experiments on adult white male rats of mixed population with sarcoma C-45 and mice with Ehrlich carcinoma have shown that malignant tumor growth leads to enhanced lipid peroxidation (LPO): production of potent LPO promoters - Fe2+, Mn+2+, NO, ubiquinone; depression of antioxidant defence - reduced production of total ceruloplasmin, elevated blood levels of oxidized ceruloplasmin and enhanced catalase activity.