... role in drug-induced anorexia caused by amphetamines. It is also the most sensitive site in the hypothalamic monoaminergic system that involves dopamine (DA) and epinephrine (EPI). DA antagonist, stereotaxically placed in this site, can stimulate feeding, and specific injections of DA or EPI can result...

... injection of the H 1 receptor antagonist ranitidine (1 × 10 –8 , 5 × 10 –8 mol) did not suppress the hyperglycemia induced by PGF 2 α. The concomitant injection of 5 × 10 –8 mol diphenhydramine or pyrilamine with 50 µg PGF 2 α significantly suppressed the increase in plasma epinephrine induced by PGF 2 α...

...Monika Ehrhart-Bornstein; Stefan R. Bornstein; Heike Güse-Behling; Hans G. Stromeyer; Torben N. Rasmussen; Werner A. Scherbaum; Guido Adler; Jens J. Holst The effects of epinephrine and of splanchnic nerve activation on adrenocortical androstenedione release were studied in intact isolated perfused...

...Seon H. Shin; Ruth E. Barton Prolactin release from primary cultured pituitary cells was investigated using a dynamic perifusion system. Although epinephrine (1 µmol/l) produced an elevation in the mean value of the prolactin concentration at the onset of the perifusion, the elevation...

...Susan L. Stoddard; Valerie K. Bergdall Seventy-five sites were electrically stimulated within the preoptic and hypothalamic areas of anesthetized cats (n = 16). Adrenolumbar venous blood flow, secretion of epinephrine and norepinephrine, heart rate and mean arterial blood pressure were measured...

... hyperglycemia associated with an increase of epinephrine and glucagon in anesthetized fed rats. To evaluate the relative contribution of these glucoregulatory hormones and the nervous system to the net hyperglycemic response, we unilaterally injected neostigmine (5 × 10 –8 mol) into the dorsal hippocampus...

... phenoxybenzamine in a medium containing 1 mmol/l epinephrine, the effect of the phenoxybenzamine was also eliminated, suggesting that a sufficient amount of D 2 receptor-epinephrine complex was formed to protect the receptor from inactivation. The hormone release in response to a secretagogue depends on its...

... ventricle of rats, and the concentrations of hepatic venous plasma glucose, immunoreactive glucagon, immunoreactive insulin, epinephrine, and norepinephrine, were measured. Four groups of animals were evaluated: (1) intact rats; (2) rats receiving an infusion of somatostatin with insulin via the femoral...

... to in the content or advertisements. Long-term potentiation Corticosterone Epinephrine Enkephalins Stress Hippocampus Adrenalectomy Demedullation Neuroendocrinology 1990;51:70-75 Effect of Adrenalectomy and Demedullation on the Stress-Induced Impairment of Long-Term Potentiation1 Tracey J. Shots...

... at non-β-receptors or other neuroactive substances colocalized in catecholaminergic nerve terminals. Stress Renin Corticosterone Paraventricular nucleus Norepinephrine Epinephrine β-Adrenoceptors 6-Hydroxydopamine Sotalol © 1990 S. Karger AG, Basel 1990 Copyright / Drug Dosage...

...Guido Pesce; Viviane Guillaume; Daniela Jezova; Maxime Faudon; Michel Grino; Charles Oliver This study was performed to determine if epinephrine (EPI) present in hypophysial portal blood has a peripheral or a central origin. Pituitary stalk and femoral arterial EPI plasma levels were simultaneously...

..., plasma concentrations of epinephrine (E) and norepinephrine (NE) were quantified following reverse-phase liquid chromatographic separation and amperometric detection. Ethanol induced maximal plasma ACTH levels within minutes, which declined toward basal levels by 60 min, whereas, plasma concentration...

.../kg/day with osmotic minipumps) markedly suppressed basal plasma corticotropin (ACTH) and corticosterone concentrations, indicating a suppression of the hypothalamo-pituitary-adrenocortical axis. Cortisol also decreased body weight, food intake, plasma norepinephrine (NE), and epinephrine (E) levels...

... were analyzed. A significant increase in plasma PRL levels was shown in grafted (22 ± 2 µg/1) when compared to control rats (6 ± 0.3 µg/1), together with a significant increase in plasma norepinephrine (NE) (4.2 ± 1.1 µg/1 vs. 1.7 ± 0.7 µg/1) and epinephrine (E) (2.9 ± 0.6 µg/1 vs. 1.6 ± 0.2 µg/1...

.... In intact or sham-operated rats, immobilization caused a prompt increase of circulating norepinephrine, epinephrine (EPI), corticosterone and of immunoreactive adrenocorticotropic hormone (ACTHi), α-melanocyte-stimulating hormone (α-MSHi) and β-endorphin (β-ENDi). Peak levels of pituitary hormones were...

..., hypothalamic concentrations of epinephrine (E) and norepinephrine (NE) were reduced by 46 and 84%, respectively. There was no significant change in content of immunoreactive corticotropin-releasing factor (CRF-41). The acetylcholine-stimulated release of CRF bioactivity from control hypothalami incubated...

...L. Cass Terry In the present investigation CNS epinephrine (EPI) biosynthesis was selectively interrupted with specific norepinephrine N-methyltransferase (NMT) inhibitors, SK&F 64139 (Smith, Kline & French Laboratories) and LY 78335 (Eli Lilly & Co. Research Laboratories), to determine...

... decapitated the following day and ova were counted. Epinephrine concentrations were determined by radioenzymatic assay in the mediobasal hypothaiamus (MBH) and the medial preoptic area (MPOA). All saline-treated controls and 10/14 of the drug-treated animals had ovulated, while epinephrine concentrations...

...Leon C. Terry; Ronald Craig Cysteamine (β-mercaptoethylamine, MEA) is a naturally occurring sulfhydryl compound that depletes pituitary PRL, causes a reduction in brain and gut somatostatin (SRIF), and suppresses norepinephrine (NE) and epinephrine (EPI) synthesis by inhibition of dopamine-β...

... and LHRH, norepinephrine, epinephrine and dopamine release were monitored. Naloxone concurrently released LHRH and the three catecholamines during the entire perifusion period. LHRH and catecholamine output returned to the control range within 30–45 min after cessation of naloxone infusion. These data show...