Hypophisis

The goal of this investigation was to study the effect of the electric-magnetic stimulation (EMS) on the activity of the HPA axis, which can change behavior activity. The experiments were conducted on mongrel, albino male rats, weighing 150- 200 g (n=14). Proceeding from the goals set, the experimental group (dexamethasone-treated-1mg/ per animal for 10 days) and the control group of rats were involved in the experiments. Each group was divided into subgroups. Some rats from the subgroup were given EMS. The Control group of rats received the same amount of saline...

In different types of functional disorders of the digestive system in adolescents were revealed the same changes of the hormonal state of hypophisial-gonad system. It indicates on dominative role of neuroendocrinal mechanisms in pathogenesis of these diseases.

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The level of oxytocinase in the pregnant woman's blood is a sensitive marker of the efficiency of the hypothalamus/hypophisis/suprarenal glands in mother and fetus, as well as the quantity of hormone production, also in placenta, which determines the duration of pregnancy and the course of labor. In the study, the level of oxytocinase was measured before the labour in 485 pregnant women at risk of premature labour. After the mean duration of pregnancy of 264 +/- 12 days, 353 infants were born fully mature (group I), and 132 with the lowered maturity of 6-9 Klimek points (group II)...

OBJECTIVES: The pioneering performance of gamma probe-assisted surgery (GPAS) for brain tumors, aiming not only an improvement of tumor detection, but mainly assurance of its complete removal and the study of the usual distribution of the 99mTc-MIBI in the brain SPECT of normal individuals. METHOD: Patient's informed consent and demonstration of the tumor by the preoperative MIBI SPECT were the inclusion criteria adopted for GPAS, which was performed in one patient with a right parietal lobe metastatic tumor...

Several data suggest that melatonin may influence avian reproduction by acting at the level of the hypothalamic-hypophisial-gonadal axis, and/or on neural circuits controlling reproductive behaviours. The action of melatonin is exerted through specific receptors whose distribution and pharmacological properties have been extensively investigated. This review will focus on the distribution, sexual dimorphism, and dependence upon the photoperiod of melatonin binding sites in avian species with a special emphasis on Japanese quail...

Anorexia nervosa (AN) is a chronic disease in which an enhanced GH response to GHRH, a paradoxic increase after TRH and LHRH, and low IGF1 levels may be present according to the patient's clinical state. It is well known that the GH hypersecretory state commonly found in the "acute phase" of AN is restored with weight gain. The new synthetic hexapeptide, Hexarelin (HEX), which is chemically similar to GH-releasing peptide 6, has recently been shown to possess a stronger GH-releasing activity than GHRH in humans and to share a synergistic effect with GHRH when administered intravenously...

At the moment it is assumed that each strongly aggressive pathogenic agent, such as bacteria, viruses, toins, trauma, burns, grave asphyxia, allergic agents, and so on, could trigger serious and uncontrollable inflammatory response. That is due to an excessive response of subject's immune system, through the dysregulation of pro-inflammatory cytokines release. The initial physiopathological event of inflammatory response consists in the production of "primary cytokines", TNF-alpha, IL-1 and IL-6 by macrophages...

These experiments were performed in order to further clarify the role played by hystamine in the control of hypothalamus-hypophisis-adrenal axis. To this aim we evaluated the effect of Dimaprit, a H2 agonist on plasma corticosterone levels. This drug was administered intraperitoneally or i.c.v. at the doses of 25, 50 and 100 mg/kg or 100 gamma/animal respectively. The administration i.p. at the dose of 100 mg/kg increased plasma-corticosterone levels whereas Dimaprit, injected intraventricularly did not modify plasma-corticosterone levels...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

No abstract text is available yet for this article.

No abstract text is available yet for this article.

In the present work, cytological changes produced in rats' pars distalis were studied by administration of anti-LH antibodies. The anti-LH sera was obtained by active immunization of adult rabbits using bovine LH hormone with Freund's complete adjuvant. Newborn albino Wistar male and female rats were daily and subcutaneously inoculated with 0.1 ml. to 0.8 ml of anti-LH sera from the first 24 hr. on during 5 weeks. For controls, a similar schedule of inoculations with normal rabbit serum was used. At weekly intervals during the treatment, 5 lots of rats were sacrificed and the rest after a recovery period of 95 days...