Biomedical subjects

V N Sinitskiĭ

Publications and source records attributed to V N Sinitskiĭ.

At least 19 recordsLinked to original sources

PubMed1988

[Effect of various biologically active substances and hormonal preparations on the pathogenetic mechanisms of manic-depressive psychoses].

Combined investigation in patients with maniac-depressive psychosis revealed the close relation of depression to the direction in which changes of central and peripheral links of bodily neurohumoral system occur. With even some of the homeostatic functions normalized as a result of an adaptogenic effect of hormonal and biologically active drugs (triiodothyronine, thyrotropin, insulin, Sodium succinate, pituitrin (vasopressin), somatotropin, retabolil), the depressive affect weakened or disappeared. Combined therapy of depression is recommended comprising antidepressants and some hormonal drugs promoting the adaptation processes of the body.

Action Potentials↗

PubMed1987

[Role of peripheral viscero-autonomic and humoral shifts in the mechanisms of negative emotional states].

The results obtained in a study of 36 depressive patients and in experiments on 134 rats have shown that viscerovegetative and humoral changes developing in the body under the effect of negative emotional states influence significantly, through the feedback mechanism, the function of the central nervous system, as well as the duration and nature of the affect.

11-Hydroxycorticosteroids↗

PubMed1984

[Features of cerebral-somatic and metabolic shifts in older patients with depressive states].

The age-related features of the sympatheticoadrenal homeostatic system identified in healthy subjects affect the pathogenesis and the clinical picture of depressions in old age. Sympatheticotonia , the stimulation of catecholamine synthesis, particularly of noradrenaline synthesis, contribute to the development of anxiety and agitation states in manic-depressive patients. Patients with involutional depression are characterized by the heterogeneous pattern of the functional changes in the body. This feature differentiates the above disorder from manic-depressive psychosis. Despite the anxiety affect, the patients mostly exhibit the synchronous EEG and the absence of any changes in blood and urinary noradrenaline. The central and peripheral changes in atherosclerotic depression reflect the on-going pathological process.

Adult↗

PubMed1983

[Role of the age factor in the pathogenesis of manic-depressive psychosis].

It was established that young patients in the depressive phase of manic-depressive psychosis (MDP) display the homogeneity of functional changes at various levels of the body auto-regulation system. In advanced age (45-65 years), due to uneven involutional changes, the body exhibits an increase in the activity of the central and, particularly peripheral links of the sympathetico-adrenal homeostatic system, which explains a considerable elevation in the number of patients with pronounced anxious symptomatology and hypersympathicotonia at the periphery. High affective tension with agitation phenomena in patients with the disease onset in advanced age is maintained by fairly high blood levels of catecholamines (particularly noradrenaline) due to the stimulation of their synthesis.

Adrenal Medulla↗

PubMed1983

[Pathogenetic mechanisms of depressive states].

Data on the changes in the EEGs, the tone of the vegetative system and peripheral vessels, the metabolism of biogenic amines (catecholamines and serotonin), and adrenal function in patients with depressions of both endogenous and exogenous genesis were analyzed. Considerable changes in the somatic status of patients with manic-depressive psychosis during its remission and, particularly, during its preparoxysmal period were shown to be associated with the activity of the vagoinsular and sympatheticoadrenal homeostatic mechanisms through a positive feed-back system between them and the phasic vegetative shifts in viscero-endocrine changes. A recurrent psychotic attack develops in association with the sympathicotonic syndrome in various clinical forms; however, later on, it is marked by a homogeneous character of the cerebral and somatic changes in the patients. Some specific elements of the intercentral relationships in depression are demonstrated. In depressions of other origins, the central-peripheral regulatory relationships display a heterogeneous character. The role of involutional and menopausal changes in the pathogenesis of depressions in the advanced age is also analyzed.

Adult↗

PubMed1981

[Mechanisms of the central action of lithium].

Experiments in 486 white rats given different doses of lithium chloride into different brain structures and the abdominal cavity were examined for changes in bioelectrical brain activity, noradrenaline, adrenaline, serotonin blood content; the activity of total acetylcholinesterase. It was established that the most sensitive to lithium action is the structure of the limbic system and hypothalamus. In the mechanism of the central action of lithium of significant importance is the range of sensitivity to it of each brain structure. This sensitivity depends upon the administered dosage and chemoreactivity of the structural brain elements, conditioned by an involvement of different mediator processes, as well as by the character of intracentral interrelationships according to the principle of direct and inverse connections.

Acetylcholinesterase↗

PubMed1978

[Pathophysiologic mechanisms of depressive states of endogenous or exogenous origin].

A total of 117 patients with depression of a various genesis were studied. The patients with endogenous (circular) depression displayed a correlation between the EEG, vascular and vegetative tonus, catecholamine excretion (especially noradrenaline) and peculiarities of the clinical picture. In patients with somatogenic depression a correlation between the studied indices of a functional state of an organism is not present. Psychogenic depression is characterized by a domination of desynchronized activity of low volts in the EEG and the existence of expressed sympathicotony of the peripheral vegetative system, while statistically significant shifts of the vascular tonus and catecholamine excreation are absent.

Adult↗

PubMed1967