V I Rodina

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The levels of anxiety were determined in male Wistar rats using a complex multiparameter method for evaluating anxiety-phobic states in rats based on ranged scale. The effects of psychotropic drugs differed in rats with innate high and low levels of anxiety. Anxiolytics sodium valproate (200 mg/kg), phenazepam (0.05 mg/kg) and diazepam (0.1 and 0.6 mg/kg)(More)
Purified tetanus toxin (TT) (80-800 Dlm/mg protein) releases both endogenous and exogenous (14)C-norepinephrine from the isolated nerve endings (synaptosomes) of the rat brain. Within the investigated range of concentrations TT does not suppress norepinephrine release induced by different ways of depolarizing the synaptosomes in vitro.
In electrophysiological experiments in Wistar rats it was shown that preventive immunization of animals with bovine serum albumin conjugated with dopamine or 5-hydroxytryptamine or with bovine serum albumin alone partly protects against the development of experimental MPTP-induced depressive syndrome. Signs of depressive-like state such as decrease in(More)
Combined pain and depression status in rats was created by inducing experimental depressive syndrome (by subchronic injection of MPTP proneurotoxin) in animals with manifest and developing neurogenic pain syndrome induced by preliminary crossing of the sciatic nerve in the hind limb. The neurogenic pain syndrome augmented by some parameters the depressive(More)
Electric stimulation (EC) of a suspension of native synaptic membranes of rat brain cortex in the Krebs-Ringer-glucose medium revealed Ca-dependent inhibition of Na+, K+-ATPase and inhibition of transport Ca-activated, Mg-dependent ATPase. The effects observed are not induced by a change in the SH-groups of the membrane proteins and are removed by an(More)
Electrostimulation of suspension of the rat brain synaptosomes causes Ca(2)+-dependent endogenous norepinephrine release and at the same time Ca(2)-dependent increase of the mediator content in the synaptosomes. The activity of cAMP declines under the same conditions. Electrostimulation does not alter the ultrastructure of the synaptosomes but raises the(More)
Bilateral destruction of the Locus coeruleus in rats was carried out by means of 6-hydroxydopamine injections. Sham-operated animals served as control ones. Electrical activity was recorded in the region of the Locus coeruleus, the dorsal hippocampus, and in the caudatus-putamen complex. Beginning from the second week after surgery in experimental rats was(More)
A new multiparameter method for evaluating anxiety-phobic states in rats is elaborated. The method is based on the ranged scale consisting of parameters which characterize the species-specific rat response to the series of ethologically adequate test-stimuli inducing manifestation of the anxiety-phobic states. The method makes it possible to evaluate(More)
Modeling of neurogenic pain syndrome by sciatic nerve transection in rats with pronounced dopamine-deficiency-dependent 1-methyl-4-phenyl-1,2,3,6,-tetrahydropyridine-induced experimental depressive syndrome forms a stable state of combined pain and depression, which can be considered as a model of the pain-depressive syndrome. The neurogenic pain syndrome(More)
It was shown that purified tetanus toxin did not influence the activity of the Na, K-ATP-ase fractions of the synaptic membranes of the rat cerebral cortex, it had no effect on the inhibition of Na, K,-ATP-ase under electrical stimulation of the synaptic membrane suspension, or the GABA--3H binding by the synaptosomes in vitro. Tetanus toxin (400--4000 DLM)(More)