[Socio-psychological grading in gerontology].

Senior and senile age is characterized by psychological, social and somatic heterogeneity of patients. To ensure high level of quality of life and to optimize the functioning of staff of geriatric hospitals we propose to introduce the distribution of pensioners within departments based on their psychosomatic status. On the analogy of the «medical triage», authors propose to introduce socio-psychological grading of older persons living in geriatric centers, focusing on their ability for self-care, the degree of preservation of cognitive functions, individual psychological characteristics.

[Comparative morphological characteristics of changes in the liver in case of poisoning with alcohol-containing liquids in human and following subacute treatment of animals with ethyl and propyl alcohols, ethylene glycol and their mixtures].

The authors present results of comparative morphological studies of changes in the liver after intoxication with alcohol-containing liquids in human and following subacute treatment of animals with ethyl and propyl alcohols, ethylene glycol and their mixtures. It was shown that poisoning caused by individual chemical substances and their mixtures induced significantly different changes in the liver of animals. The mixtures produced much more serious toxic lesions in the parenchymal tissue than individual spirits (including development of necrotization foci) and contributed to enhanced mortality of experimental animals.

[Temperature changes in the neocortex, posterior hypothalamus and neck muscles in the wakefulness-sleep cycle of white rats].

In chronic experiments on male relatively unrestrained rats, simultaneous studies have been made on the behaviour during wake-sleep cycle and on changes in the temperature of the neocortex, posterior hypothalamus and neck muscles. Interaction of two mechanisms at the hypothalamic level is discussed, namely the development of various stages of the wake-sleep cycle and thermoregulation. Special attention is paid to the phase of rapid sleep, when the transition of an animal from homoiothermic to heterothermic conditions presumably takes place.

[Intra-circadian neurophysiologic characteristics of the sleep-wakefulness cycle of the white rat].

A number of new or inadequately studied electrophysiological patterns were found in the diurnal organization of wakefulness--sleep cycle in white rats. The analysis of these patterns in view of comparative--physiological approach gives every reason to believe that the structure of white rats sleep reflects evolutionary regularities involved in establishing sleep phases in vertebrates.