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Lipid peroxidation processes were studied in the striatum during stress in conditions of prior administration of cortisol. Three doses of cortisol (25 mg/kg, daily) had no significant effect on the levels of lipid peroxidation products six days after injections ended. However, lipid peroxidation responses to stress during this period in animals given… (More)
We studied whether intranasal treatment with HSP70 can be used for the correction of maladaptive behavior in rats after unavoidable stress. After 3 intranasal injection of HSP70 in a dose of 3.25 microg we observed normalization of adaptive behavior after unavoidable stress and improvement of physiological reserves of the organism.
Lipid peroxidation in the rat striatum under stress after cortisole injection was investigated. Three days cortisole injections (25 mg/kg every day) do not affect the level of lipid peroxidation products 6 days after termination of the hormone injection. However, in these periods, cortisole injected rats had a more significant response of lipid peroxidation… (More)
The processes of free-radical oxidation of proteins and lipids and superoxide dismutase activity were studied in neurons and neuroglia of the cerebral cortex in rats during ontogenesis and after prenatal stress. Regardless of age, normal animals were found to have higher levels of free-radical lipid and protein oxidation in neurons than in glia. This same… (More)
Effect of central M-cholinolytic amizyle on incorporation of 2-14C-acetate in phospholipids of big hemispheres, cortex of big hemispheres, cerebellum and stem was studied. In administration of amizyle the most distinct alterations were observed in cortex of big hemispheres and cerebellum. In cortex of big hemispheres the specific activity of inosine… (More)
Responses to a 5-min anoxia were studied in cats with different taste sensitivity for phenilthiocarbamide (PTC). The sensitive animals were more resistant against hypoxia. The difference in the cats seems to be determined by the condition of the cAMP system involved in adaptive responses.
Within 15 min after addition of picrotoxin to incubation medium, a reduction of the phosphatidylethanolamine methylation occurred. The reduction seems to be related to opening of ion channels since during this period of the picrotoxin action the maximal membrane depolarisation takes place.
In the model with a choice of reinforcements of different value animals were able to "impulsive" and "self-controlled" behavior with an equal probability. Five adult cats were tested. A local application of agonists of 5-HT(1A) and 5-HT(2A/C) receptors (8-OH-DPAT, DOI) in the frontal cortex have resulted in a significant decrease of the "impulsive"… (More)
A study was made of the effect of bath-applied hydrocortisone (10(-4) M) on excitatory transmission of the lateral olfactory tract (LOT) - superficial pyramidal cell synapse of the rat olfactory cortex slice. Population EPSP and IPSP were depressed for 6-12 min., then they were increased (60 min.) by hydrocortisone. Recovery of evoked potentials was long… (More)
Differences in the intensity of serum protein peroxidation were detected in pregnant rats with high and low peripheral nervous system excitability threshold in stress. Stress induced shifts in serum protein peroxidation, but these changes were opposite in rats of the two studied strains.