Release of pro-opiomelanocortin-derived peptides from the pars intermedia and pars distalis of the rat pituitary: effect of corticotrophin-releasing factor and somatostatin.

abstract：INTRODUCTION:An increasing number of middle-aged men are being screened for low testosterone levels and the number of prescriptions for various forms of testosterone replacement therapy (TRT) has increased dramatically over the last 10 years. However, the safety of TRT has come into question with some studies suggestin...

journal_title：Neuroendocrinology

authors： Smith C,Contreras-Garza J,Cunningham RL,Wong JM,Vann PH,Metzger D,Kasanga E,Oppong-Gyebi A,Sumien N,Schreihofer DA

更新日期：2020-01-01 00:00:00

abstract：:Changes in antidiuretic substance (i.e., vasopressin) release from the cut pituitary stalk and the intact pituitary gland were observed during electrical stimulation of amygdala medial nucleus. Electrical pulses of 4 or 36 cycles per second (cps) were used and in both cases the same energy (about 2.160 nanowatt second...

journal_title：Neuroendocrinology

authors： Tomas T

更新日期：1975-01-01 00:00:00

abstract：:The effect of altering gamma-aminobutyric acid (GABA) activity on growth hormone (GH) secretion of freely moving chronically cannulated male rats was studied. Systemic injection of the GABA agonist muscimol (2 mg/kg i.v.) inhibited the anticipated secretory episode. Increasing brain GABA levels by gamma-acetylenic-GAB...

journal_title：Neuroendocrinology

authors： Fiók J,Acs Z,Makara GB,Erdö SL

更新日期：1984-12-01 00:00:00

abstract：:The mammalian pineal gland appears to be a major endocrine component in the regulation of photoperiodic responses. The circadian pattern of secretion of the pineal hormone, melatonin, is regulated by the nervous system. Changes in photoperiod, acting via the nervous system, alter the temporal pattern of melatonin secr...

journal_title：Neuroendocrinology

authors： Goldman BD,Darrow JM

更新日期：1983-11-01 00:00:00

abstract：:There is extensive evidence that serotonin (5-HT) is implicated in the neuroendocrine control regulating the secretion of several anterior pituitary hormones. It has also been reported that the posterior pituitary is necessary for prolactin (PRL) response to 5-HT as well as to suckling, in which 5-HT implication has b...

journal_title：Neuroendocrinology

authors： Balsa JA,Sánchez-Franco F,Pazos F,Lara JI,Lorenzo MJ,Maldonado G,Cacicedo L

更新日期：1998-11-01 00:00:00

abstract：:Oxytocin receptors are regulated during parturition and lactation. Gonadal steroids are thought to be key players in this regulation. It is not well documented how oxytocin receptor gene expression is regulated in the CNS. In this study we analyzed potential estrogen effects on the oxytocin receptor mRNA levels in som...

journal_title：Neuroendocrinology

authors： Quiñones-Jenab V,Jenab S,Ogawa S,Adan RA,Burbach JP,Pfaff DW

更新日期：1997-01-01 00:00:00

abstract：:Brain sexual differentiation is mediated through testosterone, which acts during the perinatal period in the form of both 5alpha-dihydrotestosterone and estradiol. In order to gain insight into the molecular mechanisms involved, we studied induction of c-fos, an index of functional neuronal activation, in the 2-day-ol...

journal_title：Neuroendocrinology

authors： Giannakopoulou M,Bozas E,Philippidis H,Stylianopoulou F

更新日期：2001-06-01 00:00:00

abstract：:Adrenocorticotropic hormone (ACTH) is the major regulator of adrenocortical steroidogenesis in mammals. By comparing the sensitivity to ACTH of isolated adrenocortical cells from two sources of the same strain (Sprague-Dawley, SD) of outbred rats, we have identified a source of rat with low sensitivity to ACTH in vitr...

journal_title：Neuroendocrinology

authors： Matthys L,Castello R,Zilz A,Widmaier EP

更新日期：1998-06-01 00:00:00

abstract：:Interleukin-1 (IL-1) and glucocorticoid hormones represent two key mediators involved in the modulation of the neuroimmunoendocrine response to stress. IL-1 is a potent activator of the hypothalamic-pituitary-adrenal (HPA) axis in rodents. In the immune system, glucocorticoids modulate IL-1 production and a number of ...

journal_title：Neuroendocrinology

authors： Betancur C,Lledo A,Borrell J,Guaza C

更新日期：1994-02-01 00:00:00

abstract：:Gastric carcinoids are rare neuroendocrine tumors, usually classified as type I, if associated with atrophic body gastritis; type II, if associated with Zollinger-Ellison syndrome and multiple endocrine neoplasia type I, and type III, in the absence of any gastric pathology (sporadic tumors). The pathological features...

journal_title：Neuroendocrinology

authors： Delle Fave G,Capurso G,Annibale B,Panzuto F

更新日期：2004-01-01 00:00:00

abstract：:The effects of adrenalectomy (ADX) and dexamethasone (DEX) treatment on brain dopamine (DA) receptors of ovariectomized (OVX) rats were investigated by autoradiography using binding of the D1 and D2 antagonists ligands [3H]SCH 23390 and [3H]spiperone, respectively. Fourteen days after ADX, D1 receptors decreased in th...

journal_title：Neuroendocrinology

authors： Biron D,Dauphin C,Di Paolo T

更新日期：1992-04-01 00:00:00

abstract：:The polyphenol curcumin (diferuloylmethane) is the active componenet of the spice plant Curcuma longa and has been shown to exert multiple actions on mammalian cells. We have studied its effect on folliculostellate (FS) TtT/GF mouse pituitary cells, representative of a multifunctional, endocrine inactive cell type of ...

journal_title：Neuroendocrinology

authors： Schaaf C,Shan B,Onofri C,Stalla GK,Arzt E,Schilling T,Perone MJ,Renner U

更新日期：2010-01-01 00:00:00

abstract：:Glass microknife lesions and immunocytochemistry were used to evaluate luteinizing hormone-releasing hormone (LH-RH)- and somatostatin (SS)-immunoreactive pathways from the preoptic region to the rat median eminence. Cuts were so placed that axons of more caudally located neurons in the periventricular hypothalamic ar...

journal_title：Neuroendocrinology

authors： Jew JY,Léránth C,Arimura A,Palkovits M

更新日期：1984-03-01 00:00:00

abstract：:We have previously reported that the somatotropin regulatory peptides, growth hormone-releasing hormone (GRF) and somatostatin (SS) increase feeding when applied centrally in low picomole-range doses. The similarity between the dose-response characteristics and photoperiod sensitivities of these two peptide's feeding ...

journal_title：Neuroendocrinology

authors： Feifel D,Vaccarino FJ,Rivier J,Vale WW

更新日期：1993-01-01 00:00:00

abstract：:The mu-opioid receptor (OR) is involved in several aspects of female reproductive neuroendocrinology, such as the control of gonadotropin release and the display of lordosis behavior. Even though the neuroendocrine events modulated by mu-ORs are steroid hormone-dependent, few studies have shown how steroid hormones su...

journal_title：Neuroendocrinology

authors： Acosta-Martinez M,Etgen AM

更新日期：2002-10-01 00:00:00

abstract：:[125I]-neuropeptide Y receptors were characterized in the rat pituitary gland using quantitative autoradiography. Scatchard analysis of saturation isotherms showed high affinity (Kd 8.5 x 10(-11) M) and single class of binding sites (Bmax 0.22 pmol/mg of protein) in the posterior lobe of the pituitary gland, with no s...

journal_title：Neuroendocrinology

authors： Torda T,Saavedra JM

更新日期：1990-10-01 00:00:00

abstract：:The role of beta-endorphin in the stimulation of growth hormone secretion elicited by administration of clonidine (Clon), an alpha2-adrenergic agonist, was investigated in awake, freely moving male rats. Animals were infused slowly with either 1 ml of normal rabbit serum (NRS), beta-endorphin antiserum (beta-end-AS) o...

journal_title：Neuroendocrinology

authors： Bruhn TO,Tresco PA,Mueller GP,Jackson IM

更新日期：1989-10-01 00:00:00

abstract：:The incidence of obesity is rapidly escalating and has reached epidemic proportions. In all species, including rodents, humans, and sheep, there is large variation in the degree of weight gain across individuals in response to an obesogenic environment. This individual variation is, at least in part, determined by inn...

journal_title：Neuroendocrinology

authors： Henry BA

更新日期：2017-01-01 00:00:00

abstract：:This study was designed to investigate the effects of penfluridol, a potent neuroleptic calmodulin inhibitor, on basal and secretagogue-stimulated secretion of thyroid-stimulating hormone (TSH), growth hormone (GH), and luteinizing hormone (LH). The drug had no effect on basal TSH or LH release, but decreased GH relea...

journal_title：Neuroendocrinology

authors： Schettini G,Judd AM,MacLeod RM

更新日期：1983-09-01 00:00:00

abstract：:The A1 and A2 brainstem noradrenergic cell groups project to the hypothalamic paraventricular nucleus (PVN), which is involved in integrating the stress response. Bi-directional communication between the brain and immune system is well established, with both neuroendocrine and immune responses being activated by lipop...

journal_title：Neuroendocrinology

authors： Condé GL,Renshaw D,Zubelewicz B,Lightman SL,Harbuz MS

更新日期：1999-09-01 00:00:00

abstract：:Prolactin (PRL) secretion in the female rat is regulated by an endogenous stimulatory rhythm (ESR), which is normally under the tonic inhibition of dopamine (DA). The ESR consists of a nocturnal (N) component which peaks at approximately 03.00 h, and a diurnal (D) component which peaks at approximately 17.00 h. This E...

journal_title：Neuroendocrinology

authors： Arey BJ,Kanyicska B,Freeman ME

更新日期：1991-01-01 00:00:00

abstract：:Although glutamate is the predominant excitatory amino acid in the vertebrate central nervous system (CNS) where it affects a variety of physiological processes and pathophysiological states, the role that glutamate receptors may play outside the CNS has not been clearly established. In the present study, the effects ...

journal_title：Neuroendocrinology

authors： Giovannucci DR,Stuenkel EL

更新日期：1995-08-01 00:00:00

abstract：BACKGROUND/AIMS:Estrogen receptor-alpha (ER alpha) splice variants are important for understanding estrogen effects on the brain and estrogen therapy pitfalls. We addressed the question whether a novel ER alpha splice variant TADDI is expressed at the protein level in the human brain and whether it changes in relation ...

journal_title：Neuroendocrinology

authors： Ishunina TA,Swaab DF

更新日期：2009-01-01 00:00:00

abstract：:Galanin-like peptide (GALP) is a 60-amino-acid peptide with structural similarities to galanin and a high affinity for galanin receptors. GALP is expressed by a discrete population of neurons in the arcuate nucleus (ARC) and median eminence of the hypothalamus of several species, including the rat. GALP neurons expres...

journal_title：Neuroendocrinology

authors： Shen J,Gundlach AL

更新日期：2004-01-01 00:00:00

abstract：:Circadian rhythms occur in hypothalamic serotonin content in the turkey. Inhibition of serotonin (5-HT) synthesis by parachlorophenylalanine (PCPA) blocks circadian variation in hypothalamic serotonin levels suggesting that the major cause of diurnal fluctuations is differing rates of synthesis of the amine. PCPA trea...

journal_title：Neuroendocrinology

authors： Martin JT,El Halawani M,Phillips RE

更新日期：1982-03-01 00:00:00

abstract：:Ciliary neurotropic factor (CNTF) is a neuroregulatory cytokine belonging to the interleukin-6 type cytokine superfamily. Although a few studies have reported a facilitatory action of CNTF on the reproductive axis in rodents, information along this line is still very limited. In this study, we examined a possible role...

journal_title：Neuroendocrinology

authors： Watanobe H,Habu S

更新日期：2001-11-01 00:00:00

abstract：:Knowledge of specific neurotransmitters as well as the pathways and mechanisms regulating appetite in ruminants that continually graze, such as sheep, is incomplete. Although fundamentally agouti-related protein (AGRP) has a similar function across species to increase food intake, the regulation of AGRP may vary acros...

journal_title：Neuroendocrinology

authors： Wagner CG,McMahon CD,Marks DL,Daniel JA,Steele B,Sartin JL

更新日期：2004-01-01 00:00:00

abstract：:The accuracy and reproducibility of the World Health Organization (WHO) 2015 classification of bronchopulmonary neuroendocrine neoplasms (BP-NENs) is disputed. The aim of this study is to classify and grade BP-NENs using the WHO 2019 classification of digestive system NENs (DiS-NEN-WHO 2019), and to analyze its accura...

journal_title：Neuroendocrinology

authors： Oka N,Kasajima A,Konukiewitz B,Sakurada A,Okada Y,Kameya T,Weichert W,Ishikawa Y,Suzuki H,Sasano H,Klöppel G

更新日期：2020-01-01 00:00:00

abstract：:Growth hormone-releasing hormone (GHRH) stimulates GH secretion in man and the hormonal response is specific. The attenuation of GH response to bolus GHRH after prior exposure of GHRH of up to 24 h was not demonstrated in normal or GH-deficient subjects after more prolonged exposure. This suggests that the partial los...

journal_title：Neuroendocrinology

authors： Low LC

更新日期：1991-01-01 00:00:00

abstract：:Neurons synthesizing growth hormone releasing factor were detected by immunocytochemistry with specific antiserum against synthetic rat hypothalamic growth hormone releasing factor. Growth hormone releasing factor immunoreactive neurons which also showed tyrosine hydroxylase immunoreactivity were located in the ventro...

journal_title：Neuroendocrinology

authors： Okamura H,Murakami S,Chihara K,Nagatsu I,Ibata Y

更新日期：1985-08-01 00:00:00