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O A Vasil'chuk

Publications and source records attributed to O A Vasil'chuk.

2 recordsLinked to original sources

[Disorder of the phagocytosis process in alveolar macrophages in thermal injury].

Bacteriological assay, cytochemical studies of succinate and malate dehydrogenases, acid phosphatase, glycogen and lipids, as well as electron microscopy were used in experiments on 75 rabbits to examine over time phagocytosis of alveolar macrophages and some mechanisms of its disturbance after burn trauma. It was established that the phagocytic function of alveolar macrophages gets disturbed shortly after trauma, remaining depressed up to the time of convalescence. It was demonstrated that the mechanism by which phagocytic function gets disturbed differs with time following trauma. Primary depression of phagocytosis occurs immediately after burn. At the height of burn disease the cells develop an energy deficient state, whereas the time of convalescence is marked by the emergence of poorly differentiated forms of macrophages having the reduced phagocyte capacity.

Animals↗

[Ultrastructural lung changes in experimental thermal injury].

The dynamics of microcirculatory changes in the alveolar wall and the state of small and large alveolar cells were studied by electron microscopy at 1, 7, 14, and 30 days after flame burns of the IIIB degree on the area of 18% of the body surface of 23 rabbits. The thermal trauma was found to cause acute disorders of microcirculation consisting of aggregations of formed elements of the blood, microthrombosis, emergence of fatty emboli, leukostasis, erythrocyte diapedesis, and leukocyte migration into the alveolar cavity. Capillary endothelium first showed signs of increased transcapillary metabolism and then dystrophic changes of the cells up to focal lysis of the cytoplasm with the exposure of basal membrane combined with dystrophic changes of the alveolar cells. One month after the trauma, microsclerosis of the alveolar walls as well as signs of disorder in cell differentiation were found.

Animals↗