Analysis of intracentral brain relationships, cognitive and psychopathological processes in animals by means of pharmacological modulation is an optimal method of cognition, determining the possibilities of correlation with similar processes in humans. New methods and approaches to biomodulation of psychopathologies, based on the principles of pharmaco-EEG standardization using fast Fourier-transformed brain electrograms and elements of systemic behavior, allow to identify quantitative parameters of fundamental mechanisms of neuropsychoactive agents in the cat brain.

Liposomal forms of preparations containing biologically active substances extracted from renewable sources of raw materials of plant and animal origin are attracting considerable research and practical interest. Liposomal drugs are efficiently absorbed in the gastrointestinal tract, retaining their structure while passing through the liver and entering the target cell. This allows either smaller amounts of the active substance to be used without losing bioavailability or its effective concentration to be increased.Deer musk liposomes administered at doses equivalent to 300, 1500 and 3000 mg/person/day were found to exhibit an actoprotective effect, whose intensity at the minimum dose (300 mg) is comparable to that achieved at the maximum dose (3000 mg).A course daily transpalatal administration of musk deer liposomes for 14 days was established to statistically significantly improve the indices of physical endurance and working capacity of rats in forced swimming tests under load, kineso-hydrodynamic models of swimming and rotarod performance tests. The observed increase in indicators persisted for another seven days after the cessation of administration, which indicates pharmacological cumulation. The tested drug reduces locomotor and orienting-exploratory activity, at the same time as exhibiting no adverse effect on the psycho-emotional and intoxication status of animals. In addition, no local irritant action on the route of administration was noted. The drug is assigned to toxicity class VI (relatively harmless).

This article investigates changes in the cellular composition of bronchoalveolar lavage over time in the modeling of acute respiratory distress syndrome (ARDS) in mice, followed by a single administration of Leutragine. In intact animals, macrophages predominate in bronchoalveolar lavage, which is the physiological norm. When modeling ARDS, neutrophils increase. A single administration of Leutragine leads to a significant reduction in the number of neutrophils and a simultaneous increase in macrophages in 72 hours, thus bringing the cellular composition of lavage to normal.

A method for endotracheal administration was studied and optimized for the tasks of the Scientific Centre for Biomedical Technologies (SCBMT), Russia, on small and large laboratory animals. By means of intratracheal instillation of sensitizing substances, a biomodel of coronavirus pneumonia was created and tested in preclinical studies.

The selection of an adequate combination of drugs for anesthesia of female mice during surgical embryo transfer is an important part of the process, since insufficient depth of anesthesia or the influence of undesirable effects on the pregnant female and the embryo can lead to unsatisfactory results of the experiment. In our work, we use a combination of 2 drugs for anesthesia of an animal: Zoletil 100 and Meditin, as well as Antisedan immediately after transplantation for a faster recovery from anesthesia.