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V N Kazakov

Publications and source records attributed to V N Kazakov.

78 records · Page 5Linked to original sources
PubMedDate not supplied

[Effect of hippocampal stimulation on the feeding behavior of cats].

Influence of electrical stimulation (100 cps., 1.0 ms) of medial parts of dorsal and ventral hippocampus (field CA1), and the lateral parts of dorsal and posterior hippocampus (field CA3) on general behaviour, elaboration of instrumental and manifestation of delayed reactions was studied in chronic experiments on cats. Stimulation of medial parts of dorsal and ventral hippocampus elicited a reaction of orienting reflex type to natural stimuli. Stimulation of lateral parts of dorsal and posterior hippocampus evoked arrest reactions. Medial and lateral parts of hippocampus produced different influences on elaboration of conditioned reflexes. In the first case elaboration was possible, but developed slower, while in the second case the ability to learn during stimulation was completely lost due to development of arrest reaction. Stimulation of different parts of the hippocampus disturbed delayed reactions, reducing the number of correct responses.

Animals↗
PubMedDate not supplied

[The dynamic surface tension of the blood and urine in chronic glomerulonephritis].

Dynamic surface-tension (S-T) was investigated of blood and urine of healthy individuals and patients with chronic glomerulonephritis by the proposed method of maximum pressure in a bubble with the aid of the computer-assisted device tensometer MPT-1 (Lauda, Germany). Patterns of changes in dynamic and static S-T were found out as were those of the slope of the curve in patients with mesangioproliferative and mesangiocapillary variants of the condition, in nephrotic syndrome and chronic renal insufficiency. Correlation type comparison was performed of physical-and-chemical properties of biological fluids to parameters characterizing protein and fat exchange. Relationship between dynamic S-T and biochemical composition of blood and urine was revealed. Diagnostic value of results of the studies made is discussed.

Adolescent↗
PubMedDate not supplied

[Dynamic interphase tensiometry of the cerebrospinal fluid and blood serum in nervous system tumors].

Dynamic superficial tension (ST) of spinal fluid (SF) and blood serum in patients with CNS tumors was investigated. The maximum bubble tension was measured by a MPT2 computer tensiometer (LAUDA). There were decreases in ST of blood serum at t = 1 and t-->infinity, increases in ST at t = 0.01 and decreases in the angle on SF tensiograms. The parameters of interphasic tensiometry of the biological fluids depend on content of biologically active substances severity of the neurological symptomatology and duration of disease. Successive surgical treatment is followed by normalization of SF and blood serum ST.

Adolescent↗