Biomedical subjects
Publications and source records attributed to N I Khorseva.
Experiments on male outbred albino rats showed that benzodiazepine tranquilizers phenazepam and flunitrazepam in ultralow doses (10(-9)-10(-15) mol/kg) produced an anxiolytic effect in the conflict situation test. This effect was not accompanied by myorelaxing and sedative side effects typical of standard doses of tranquilizers.
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A retrospective analysis of weekly values of geomagnetic activity during embryonal development for healthy and mentally diseased people was performed. A statistically significant in the aa-index for mentally diseased people by 4.5-5.5 week of embryonic growth was revealed. This suggesting that the level of geomagnetic activity affects the laying and development of the central nervous system.
A method of classification of outbred albino rats by means of forced swimming in a tank filled with water and equipped by freely turning wheels was developed. Using this technique a population of albino rats can be divided into three groups: highly active (HA), low active (LA) animals, and rats with intermediate activity. HA animals exhibit stable behaviour in forced swimming and conflict situation paradigms. They are also more sensitive to a benzodiazepine anxiolytic phenazepam in conflict situation test. At the same time, LA rats decrease their activity and are less sensitive to phenazepam. Both groups (LA and HA) are not homogeneous: each of them includes animals demonstrating quite another type of behaviour compared with a majority of rats.