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Biomedical subjects

E V Luchitskiĭ

Publications and source records attributed to E V Luchitskiĭ.

At least 19 recordsLinked to original sources
PubMed1990

[Changes in the secretion of the hormones of the hypothalamo-hypophyseo-adrenal system in Itsenko-Cushing disease under the influence of insulin-induced hypoglycemia and thyroliberin].

The concentration of corticotropin and cortisol in the blood was determined 120 patients with Itsenko-Cushing radioimmunologically after insulin hypoglycemia, after administration of insulin and thyroliberin. It was established that healthy persons and patients with Itsenko-Cushing disease showed no differences in the effect of insulin and thyroliberin as compared with insulin hypoglycemia on the state of the pituitary-adrenal system.

Adolescent↗
PubMed1989

[The renin-angiotensin-aldosterone system in hypertension of hypothalamic origin].

The results of the study of angiotensin-II and aldosterone++ concentrations, renin activity in blood plasma, the response of adrenal cortex glomeruli and juxtaglomerular system to insulin hypoglycemia, metoclopramide++, furosemide and exercise were considered for 119 patients with neuroendocrine form of hypothalamus syndrome. It was found that hypothalamic regulation of renin-angiotensin-aldosterone++ system underwent changes. Hypersecretion+ of aldosterone++ is an important factor in pathogenesis of arterial hypertension in hypothalamic syndrome.

Adolescent↗
PubMed1989

[Hypophyseal and adrenal hormones and the immune reactivity of patients with Itsenko-Cushing disease after an adrenal autograft].

The authors employed for the first time the method of heterotopic autotransplantation of the adrenals on a vascular pedicle in patients with Itsenko-Cushing disease. It was established that heterotopic transplantation of the adrenals results early in a significant reduction of the level of cortical hormones and insignificant change as compared with initial state of the immune status. All terms were characterized by humoral and cellular immune deficit. Results indicate the expediency of using this method. Adrenal transplantation prevents the development of hypocorticism.

Adolescent↗
PubMed1986

[Effect of beta-endorphin on catecholamine levels in the rat hypothalamus and cerebral cortex].

The present paper deals with the effect of beta-endorphin on catecholamine content in the hypothalamus and cerebral cortex of male rats. beta-endorphin was found to decrease catecholamine content in the rat brain, with the degree of reduction depending on the brain topography and the time following the peptide administration. 5 min later no changes in catecholamine content were observed either in the hypothalamus or in the cerebral cortex. 20 min later beta-endorphin induced a statistically significant fall of catecholamine concentration in the hypothalamus. A tendency towards its decrease was also observed in the cerebral cortex. 60 min later beta-endorphin produced an insignificant decrease in catecholamine level in both brain areas under study. It may be therefore suggested that beta-endorphin-induced decrease of catecholamine content in the hypothalamus and cerebral cortex represents one of the mechanisms underlying beta-endorphin stimulating action on a number of trophic functions of the hypophysis.

Animals↗
PubMed1985

[Criteria for the selection of drugs for the pathogenetic treatment of Itsenko-Cushing disease].

The authors presented the results of a study of the level of corticotropin and cortisol in the blood at different time after a single intake of peritol or parlodel in 48 patients with Icenko-Cushing disease at the active stage. Corticotropin and cortisol concentrations were determined by radioimmunoassay with the help of standard kits. The study showed a different sensitivity of patients with Icenko-Cushing disease to peritol and parlodel. According to the expression of the reaction of the hypophyseal-adrenal system all the patients were divided into the following groups: with a noticeable reaction to one or both drugs, with a slightly noticeable decrease in the level of hormones or a paradoxical reaction to the drugs. A single test with inhibitors of hypophyseal corticotropic function provided an opportunity for an individual choice of an effective drug for pathogenetic treatment of patients with Icenko-Cushing disease. The optimum time for blood examination to determine the concentration of corticotropin was 1 and 2 hrs, the level of cortisol 2-4 hrs after the intake of peritol and parlodel.

Adrenocorticotropic Hormone↗
PubMed1984

[Dynamics of beta-lipotropin and beta-endorphin levels in Itsenko-Cushing disease patients being treated with the antiserotonin preparation cyproheptadine (peritol) and chloditan].

The authors provide the data on the changes in the blood content of opioid neuropeptides in patients with Icenko-Cushing's disease treated with an antiserotonin drug peritol. The high content of beta-endorphine and beta-lipotropin in the patients' blood was one of the factors determining activation of the hypothalamus-pituitary-adrenal system. The treatment of patients with Icenko-Cushing's disease by peritol led to a decrease in the blood content of beta-endorphine and beta-lipotropin, promoting a clinical and laboratory remission in 60% of patients. Some patients treated with peritol did not develop a clinical remission. This indicates the necessity of acting on the metabolism of other monoamines involved in the modulation of the action of neuropeptides on the hypothalamus-pituitary system.

Adolescent↗
PubMed1983

[Effect of beta-endorphin on endocrine function].

It has been disclosed that beta-endorphin exerts marked effect on the secretion of ACTH, prolactin, corticosterone, aldosterone and somatotrophin formation in the pituitary but does not produce any effect on blood thyrotropin. Maximal rise in the concentration of the hormones was seen at the 20th minute, despite the fact that an elevation in the content of some hormones was recorded at the 5th minute following intravenous injection of beta-endorphin. At the 60th minute after beta-endorphin injection the content of prolactin, corticosterone and aldosterone in the blood dropped to the control level, while ACTH content remained significantly higher than in intact animals. One of the possible mechanisms underlying the action of beta-endorphin on the secretion of the hormones indicated might be the changes in the ratio of brain monoamines (a decrease in dopamine).

Adrenocorticotropic Hormone↗
PubMed1982

[Mechanism of action of cyproheptadine (peritol) on the hypothalamo-pituitary-adrenal axis].

The present paper is concerned with the mechanism of action of the blocker of serotonin receptors, cyproheptadine (peritol) on the hypothalamohypophyseal-adrenal system activity. It has been established in male rats that the inhibitory, antiserotonin action of peritol on the indicated system activity depends on the rate and rhythmicity of the drug administration, and, to a less degree, on its dosage. Peritol exerts a specific antiserotonin action via the CNS and by acting on some regulatory mechanism in peripheral tissues (adenylate cyclase system, corticosterone secretion).

Adrenocorticotropic Hormone↗
PubMed1981

[Effect of peritol on the activity of the hypothalamo-hypophyseo-adrenal system].

A study was made of the activity of the hypothalamo-hypophyseo-adrenal system under the effect of peritol (ciprohepatadin), an antagonist of serotonin receptors. Experiments were carried ot on male rats in which the blood content of corticosterone, aldosterone and ACTH was determined 3, 6 hours and 14, 20 and 30 days after peritol administration (twice a day). Pronounced inhibitory effect on the hypothalamo-hypophyseo-adrenal system was found to be attainable on a more frequent exposure (every 3 hours) to peritol with a purpose of maintaining the optimal drug concentration in various body tissues. The latter circumstance gives rise to peritol effect which is realized through both the central mechanisms (ACTH content) and as a result of direct action on steroid output.

Adrenocorticotropic Hormone↗