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8 results on '"Vartanian GA"'

1. [The neuromorphological basis of the therapeutic action of neurohumoral factors from the cerebrospinal fluid].

Author

Novikova TA, Obukhova GP, Ptitsina IB, and Vartanian GA

Subjects
Animals, Axonal Transport drug effects, Horseradish Peroxidase metabolism, Male, Motor Cortex drug effects, Motor Cortex injuries, Motor Cortex metabolism, Pyramidal Tracts drug effects, Pyramidal Tracts metabolism, Rats, Neurotransmitter Agents cerebrospinal fluid, Neurotransmitter Agents therapeutic use
Abstract

The influence of the donor's cerebrospinal fluid (CSF) on retrograde transport of horseradish peroxidase (HRP) from lumbar cord segments to neurons of the sensomotor cortex (SMC) in rats after the left SMC damage was studied. The CSF of convalescents (21 days after damage) and CSF of normal rats was shown to activate the transport of HRP to neurons of the SMC of undamaged hemisphere in the recipients (second day after damage).

Published
1993

2. [The prospects for using endogenous modulators of functions and processes].

Author

Vartanian GA and Korneva EA

Subjects
Animals, Bone Marrow physiology, Brain physiology, Conditioning, Classical physiology, Efficiency physiology, Emotions physiology, Homeostasis, Humans, Immune System physiology, Neuropeptides physiology, Spleen physiology, Stem Cells physiology, Stress, Psychological physiopathology, Neurotransmitter Agents physiology
Published
1986

3. [The humoral link in the mechanism of formation of conditioned food refusal in the edible snail].

Author

Stepanov II, Lokhov MI, Satarov AS, Kuntsevich SV, and Vartanian GA

Subjects
Animals, Avoidance Learning physiology, Electroshock, Food, Helix, Snails, Neurotransmitter Agents analysis, Conditioning, Classical physiology, Hemolymph analysis, Neurotransmitter Agents physiology
Abstract

Effect was studied of hemolymph of snails-donors with conditioned food refusal, on learning the same habit by snails-recipients. Facilitation was observed of the recipients' learning depending on the quantity of injected hemolymph and the type of conditioned stimulus. The hemolymph of pseudo-conditioned donors inhibited the learning of intact snails-recipients. The possibility is suggested of appearance in the hemolymph of conditioned snails of one or several chemical factors, capable to facilitate elaboration of the same conditioned reflex.

Published
1987

4. [Specific and nonspecific components in the neurohumoral link of the conditioned food-refusal reflex in the edible snail].

Author

Stepanov II, Lokhov MI, Satarov AS, Kuntsevich SV, and Vartanian GA

Subjects
Animals, Feeding Behavior physiology, Hemolymph physiology, Learning physiology, Methods, Seasons, Conditioning, Classical physiology, Helix, Snails physiology, Neurotransmitter Agents physiology
Abstract

On snails, the action was studied of hemolymph of donors with conditioned food refusal reflex on acquisition of the same habit by intact snails-recipients in case of coincidence or of difference of conditioned stimuli in donors and recipients. Specific component of the facilitating effect was distinctly manifest at selection of optimal doze of hemolymph and depended on the season. At non-optimal parameters of the experiment the specific component of the facilitating effect was masked by the non-specific one, or an inhibitory effect took place. The data obtained testify to multicomponent composition of the neurohumoral link in the mechanism of conditioned reflex formation.

Published
1987

5. [Neurochemical induction of the factor of postural asymmetry in the pituitary].

Author

Vartanian GA, Varlinskaia EI, Shul'gina IP, Shatik SV, and Tokarev AV

Subjects
Animals, Male, Neurotransmitter Agents cerebrospinal fluid, Neurotransmitter Agents isolation & purification, Pituitary Gland analysis, Rats, Brain Chemistry, Functional Laterality, Neurotransmitter Agents physiology, Pituitary Gland physiology, Posture
Published
1988

7. [Role of endogenous neurohumoral factors in mechanisms of the pathogenesis and compensation of unilateral movement disorders after serial removal of the motor neocortex].

Author

Danilovskiĭ MA, Dulinets VV, Belenkov NIu, and Vartanian GA

Subjects
Animals, Brain Injuries cerebrospinal fluid, Cats, Time Factors, Wounds, Penetrating cerebrospinal fluid, Adaptation, Physiological, Motor Cortex injuries, Neurotransmitter Agents cerebrospinal fluid
Abstract

The role of neurohumoral factors in the mechanisms of restoring the lost motor functions after two successive unilateral removals of the neocortex motor region, was studied. The dynamics of the restoring correlated with the posture asymmetry factor (PAF) activity in the CSF. PAF activity was reduced during the restoring by an inactivation factor (FI). Periods of restoration after the 2nd extirpation and inactivation of PAF were shorter than after the 1st one. The existence of the FI before the 2nd extirpation may account for this phenomenon.

Published
1987

8. [Endogenous neuropeptides as specific modulators of central nervous system functions].

Author

Vartanian GA, Klement'ev BI, and Petrov ES

Subjects
Animals, Cats, Conditioning, Classical physiology, Functional Laterality, Humans, Neurons physiology, Posture, Rats, Snails, Brain physiology, Nerve Tissue Proteins physiology, Neurotransmitter Agents physiology
Abstract

A peptide factor, responsible for a phenomenon of posture asymmetry and characterized by a high selectivity of action, was isolated from rat brain. Studies on the amino acid sequence in the peptide are carried out.

Published
1984

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