[The importance of vascular surgery and path morphology in therapy of parasympathetic chemodectomas].

Was closely studied the material of 28 extracted chemodectomas. On the basis of modern methods of morphological investigation (histological, electronic-microscopic methods) were ascertained criterions of their malignant nature; for the first time was described the phenomenon of vessels overgrowing.

[Dermal cysts participate in reparative regeneration of epidermis in Hr(hr)/Hr(hr) mice].

One of the phenotypic effects of mutation in the Hr gene in mice is disintegration of hair follicles and their degeneration into open funnel-shaped structures (utricles) opened on skin surface and cysts located in the depth of the dermis. The aim of the current study consists in analysis of the process of reparative regeneration of skin in homozygotous mice with one of the mutant alleles of the Hr gene-Hr(hr). It is shown that epithelial cells that constitute the inner pavement of cysts take part in the process of epithelization of deep skin wounds.

Heterokaryon formation as a method for neuron regeneration in postischemic injury to cerebral cortex in rats.

Rat prefrontal cortex was examined by light and electron microscopy after stroke induced by photothrombosis. An appreciable number of binuclear neurons with morphologically similar and different nuclei was detected in the perifocal zone and adjacent intact tissue. The satellite oligodendrocyte nucleus was frequently the second nucleus in binuclear neuron.

Ultrastructural characteristics of chemodectomas.

We present results of morphological study of chemodectoma samples obtained during surgery. Specific ultrastructural features and protein-synthesizing and proliferative activity of light and dark cells were demonstrated using data of electron radioautography.

[Treatment of IIIa grade burns with the biologic band].

The biologic band is created on the base of type I collagen and platelet derived growth factor. It was applied for extensive burns of IIIa grade at 1-2nd day after a trauma, which led to epidermis reconstruction at 5-7th day. Authors assume that the effect of the band is determined by the time of its use--1-2nd day, when stimulating exudation qualities combine with healing properties of the bandage.