Pharmacological correction of amnesticdisorders in mammalians(evolutionary aspects of investigation)

The present work is devoted to the study of the peptides bioregulators of new generation (Cortexin, Semax, Selank) in the compensation of the disturbed Higher Nervous Functions ih the ascending row of mammls (insectivores, rodents, primates). The new data have been established that at the early stage of mammals (in insectivores) Cortexin, Semax and Selank induced the more significant and long lasted effect on inherent forms of behaviour. Their effects on the compensation of the disturbed Higher Nervous Functions have nonspecific, facilatory short time lasted character. Contrary to insectivores, rodents have a clear tendency to compesation for Higher Nervous Function disturbances. At the Semax and Selank background, the delayed conditional reflexes were restored. It has been established that the cerebroprotective effects of Selank exerted more significant influences upon the brain function disturbances in neurotic rats. Contrary to the results found in lower mammals, the application of Cortexin, Semax and Selank to neurotic monkeys exerted differnt effects upon the Higher Nervous Functions disturbances. The compensatory effects of drugs are dose dependant in nature being more effective with intranasal administration and having different effects on the various types of neurosis. The long duration compensation of the mental disturbances (the EEG homeostatic parameters of memory processes) took place during the Selank (30 mkg/ kg) administration. The cerebroprotective effects of Semax are especially significant on the operative memory. Cortexin antiamnestic and cerebroprotective effects especially significant at the inhibitory type of neurosis. The data collected on the compensatory Cortexin, Semax and Selank influeces on the disturbed memory processes and cognitive deficit of monkey’s may serve as neurophysiological basis for the more intensive and specific role of these drugs in the neurological clibic.