[Increase of probability of cell loss in the endothelium of blood vessel capillaries in progeny of rats after a low-dose irradiation of one of the parents (electron microscopy study)].

The total gamma-irradiation of Wistar rats at a dose of 0.25 Gy as well as at higher doses (0.5, 2 and 4.

[Structural changes in platelets in alloxan diabetes as parameters of their activation in the vascular bed and morphologic features].

The present study shows that a stable level of blood platelet number persists in diabetic rats (following 15 and 60 days after experimental alloxan injection) Unusual platelet megaforms are seen accumulating (up to 36%), having no size analogs in control animals. A quantitative electron-microscopic analysis demonstrated that the enlargements of diabetic platelets was accompanied by their rounding in shape and by a more frequent (by 2.0-2.

[A functional-morphological study of the mucociliary system at stages in the disease in patients with chronic bronchitis].

Combined morpho-functional study of the mucociliary system in patients with chronic bronchitis at different stages of its development was made. Regional mucociliary clearance was evaluated by dynamic aerosol scintigraphy and electron microscopy. Radiography of bronchial biopsies was performed, rheological properties of bronchial content were also determined.

[Pseudomutagenesis. The persistent increase in the level of cellular variability induced by radiation and some other agents].

Electron microscopic investigation of capillary endothelium cells in myocardium of irradiated rats revealed an unusual effect of persistent increase of probability of cell damage, similar in many relations to that described earlier for various unicellular species. New effect, unlike those traditionally studied, is characterised by non-stochastic nature, large number of the involved cells, reveals itself even after faint influences, and can be induced as well by agents other than radiation. The question is put on the probable commonness between these changes and the pseudomutagenesis which has the similar phenomenology.