.... Methods: Male Wistar rats were exposed to a cold environment (4°C) or TRH retrodialysis in the PVN for 2 h. We compared the effects of cold exposure and TRH administration in the PVN on plasma glucose, corticosterone, and thyroid hormone concentrations, body temperature, locomotor activity, as well...

...Jakob Dal; Edward O. List; Jens Otto L. Jørgensen; Darlene E. Berryman Patients with active acromegaly are frequently insulin resistant, glucose intolerant, and at risk for developing overt type 2 diabetes. At the same time, these patients have a relatively lean phenotype associated...

.... The aim of the present study was to determine whether there are any alterations in glucose, glycogen, glucose transporters, insulin, insulin receptors or corticosterone concentrations in the hippocampus and frontal cortex in a prenatal stress rat model of depression. Methods: Male rats whose mothers had...

...Suvi T. Ruohonen; Saku Ruohonen; Ralf Gilsbach; Eriika Savontaus; Mika Scheinin; Lutz Hein Background and Aims: Insulin secretion is controlled by pancreatic α 2A -adrenoceptors. Mice lacking α 2A -adrenoceptors (α 2A AR –/– mice) show hyperinsulinaemia, reduced blood glucose levels and improved...

.... We first examined whether orexin A inhibited pulsatile LH secretion when food was available ad libitumduring blood sampling. Next, we investigated the effect of intravenous administration of glucose (400 mg/kg) or lactic acid (negative control; 400 mg/kg) on orexin A-induced inhibition of pulsatile...

... min) after drug administration and assayed for insulin, glucagon and glucose levels. The 5-HTIA receptor agonist 8-OH-DPAT produced a statistically significant decrease in plasma insulin levels and an increase in glucose, whereas glucagon levels were unaffected. The only effect observed after...

... and endocrine responses to 15,25, and 50 ng intracerebroventricular (i.e.v.) recombinant IL-1β in awake, freely moving rats over a 6-hour period. The rate and duration of elevation of temperature and plasma corticosterone and glucose were dose-dependent and did not return to control levels until 6 or more hours...

.... Corticotropin-releasing hormone Obesity Food deprivation Zucker rats c- fos Bed nucleus of the stria terminalis Paraventricular nucleus Ventromedial nucleus Glucose [fteU D ^ -endocrinology Pituitary Adrenal Axis Neurocndocrinology 1997;66:327-340 Received: April 7,1997 Accepted after revision: July...

... -methyl-L-arginine (L-NMA), an inhibitor of NO synthase, into the third cerebral ventricle of unanesthetized, unrestrained rats and determined the plasma level of glucose. This intracerebroventricular (i.e.v.) injection of the drug increased the plasma level of glucose dose-dependently, whereas...

..., instructions or products referred to in the content or advertisements. Ipsapirone 5-HT1a receptors Thyrotropin Cold stress Corticosterone Glucose Original Paper Neuroendocrinoiogy 1993 ;57:640~647 Pierre Broqua Dominique Laude Marie-Thérèse Bluet-Pajoth Bernard Schmidtc Véronique Baudrie...

... administration of glucose, fatty acids or amino acids and central injection of γ-globulin from antiserum to human neuropeptide Y (NPY) on the GH secretory pattern were examined in 72 h food-deprived rats. Rats were provided with chronic indwelling right atrial cannula and serial blood specimens were withdrawn...

... in the following groups of rats: intact rats with bilateral adrenalectomy to eliminate the action of epinephrine, and rats receiving a constant infusion of somatostatin and insulin to prevent the glucagon response and to maintain the basal insulin level. Hepatic venous plasma levels of glucose, immunoreactive...

... with normal saline, glucose or fructose. Insulin-induced hypoglycemia produced significant plasma AVP and OT increments in the control test. The infusion of fructose was unable to change the posterior pituitary hormonal responses to hypoglycemia. In contrast, AVP and OT responses during ITT were completely...

... investigated the effect of glucose concentrations, in the presence and absence of insulin, on LHRH release from perifused hypothalamic fragments from female adult ovariectomized rats. Glucose and insulin were added to the perifusion medium (Earle’s, pH 7.4, gassed with 95% O 2 /5% CO 2 , flow rate 50 µl/min...

...Geneviève Renier; Omar Serri The aim of this study was to verify whether prolonged exposure of cultured rat anterior pituitary cells to high glucose can alter growth hormone (GH) release and responsiveness to secretagogues. Therefore, we cultured anterior pituitary cells obtained from normal male...

... adrenal catecholamine release. Then, the aim of this study was to investigate whether brain 5-HT, by means of these receptors, mediates insulin-induced adrenal catecholamine release. For that purpose, both plasma epinephrine (Epi), norepinephrine (NE) and glucose levels were measured in conscious rats...

...Victor M. Arce; Silvano G. Cella; Vittorio Locatelli; Eugenio E. Müller The effect of caloric restriction (CR) on the growth hormone (GH) response to compounds reportedly capable of acting via somatostatinergic influences, i.e. cholinergic agonist or antagonist drug, glucose or thyrotropin...

...Masafumi Yamaguchi; Tokuji Iriuchijima; Toshio Michimata; Masatomo Mori We have attempted to elucidate the effect of glucose concentrations on the release of thyrotropin-releasing hormone (TRH), a brain neuropeptide possessing glucoregulatory function, from rat hypothalamic slices in vitro. Rat...

... effect on the liver and of certain hormones to the hyperglycemia induced by administration of thyrotropin-releasing hormone (TRH). The findings were compared with those of a previous investigation using neostigmine or 2-deoxy-D-glucose. In the present study TRH was injected into the third cerebral...

...Myriam Baes; Wylie W. Vale The glucose-dependent secretion of the neuropeptides, growth hormone-releasing factor (GRF) and somatostatin (SRIF), by hypothalamic fragments was studied in vitro using a superfusion system. After equilibration of mediobasal hypothalami in HEPES-buffered Krebs-Ringer...