Comparative aspects of GH and metabolic regulation in lower vertebrates.

abstract：BACKGROUND:The reviewing and assessment of epidemiological characteristics of neuroendocrine tumours (NETs) remains a challenge. Despite the fact that it is an uncommon family of neoplasms, several worldwide series have revealed an increasing incidence of this rare condition. However, the data are difficult to compare ...

journal_title：Neuroendocrinology

authors： Huguet I,Grossman AB,O'Toole D

更新日期：2017-01-01 00:00:00

abstract：:The effects of melatonin administration on thyroid physiology of female hamsters was investigated. A protocol of 25 micrograms given daily as subcutaneous injections late in the light period was found to inhibit blood levels of thyroxin (T4), triiodothyronine (T3) and thyrotropin (TSH). The free T4 index (FT4I) and th...

journal_title：Neuroendocrinology

authors： Vriend J,Richardson BA,Vaughan MK,Johnson LY,Reiter RJ

更新日期：1982-01-01 00:00:00

abstract：:The response of folliculo-stellate (FS) cells of the anterior pituitary to estrogen has been studied in two strains of rat which differ in estrogen responsiveness. Fischer 344 (F344) rats are highly estrogen-responsive in comparison to Sprague-Dawley (S-D) rats. Ovariectomized adults were implanted with silastic capsu...

journal_title：Neuroendocrinology

authors： Schechter J,Ahmad N,Weiner R

更新日期：1988-11-01 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：: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：:While interleukin-1 (IL-1), a monocyte-derived polypeptide, clearly stimulates the hypothalamo-pituitary-adrenal (HPA) axis, its precise site of action is controversial. In these studies, the possibility of a hypothalamic and/or a pituitary site of action was investigated in vitro, using incubated rat hypothalami and ...

journal_title：Neuroendocrinology

authors： Tsagarakis S,Gillies G,Rees LH,Besser M,Grossman A

更新日期：1989-01-01 00:00:00

abstract：:To gain further insight into the regulation of hypothalamic TRH by thyroid hormones, we measured TRH concentration in specific hypothalamic nuclei and preproTRH mRNA levels in the anterior hypothalamus. Adult male rats were decapitated 1, 7, 14 days after thyroidectomy. Micropunches by the method of Palkovitz from sev...

journal_title：Neuroendocrinology

authors： Yamada M,Satoh T,Monden T,Murakami M,Iriuchijima T,Wilber JF,Mori M

更新日期：1992-03-01 00:00:00

abstract：:Hypophysitis is a relatively rare disease that exerts a strong autoimmune component encompassing different etiologies. Immunomodulatory drugs, such as interferon-α, are known to rarely induce hypophysitis. In recent years, a large number of new biological and immunomodulatory agents have been introduced into clinical ...

journal_title：Neuroendocrinology

authors： Angelousi A,Chatzellis E,Kaltsas G

更新日期：2018-01-01 00:00:00

abstract：:Over the last 10 years, kisspeptins--peptide products of varying lengths encoded by the KISS1 gene--have been found to be key regulators of normal reproductive function throughout life in animals and humans. By activating the kisspeptin receptor [previously known as orphan G protein-coupled receptor 54 (GPR54)], they ...

journal_title：Neuroendocrinology

authors： Prague JK,Dhillo WS

更新日期：2015-01-01 00:00:00

abstract：:We have suggested that gamma-aminobutyric acid (GABA) in the hypothalamus plays a tonic inhibitory role in the control of the luteinizing hormone (LH) release in intact male rats. To assess whether feedback from the testis alters the inhibitory GABAergic tone in the medial preoptic area (MPO) of male rats, an in vivo ...

journal_title：Neuroendocrinology

authors： Tin-Tin-Win-Shwe,Mitsushima D,Kimura F

更新日期：2002-11-01 00:00:00

abstract：:In the paraventricular nucleus of normal or adrenalectomized colchicine-treated guinea pigs and rats, corticotropin-releasing factor (CRF), vasopressin (VP) and oxytocin (OX) immunoreactivities were compared. In the control animals, respective stainings for these three peptides are distinct. Adrenalectomy resulted in ...

journal_title：Neuroendocrinology

authors： Tramu G,Croix C,Pillez A

更新日期：1983-12-01 00:00:00

abstract：:Studies were undertaken to determine the effects of chronic stimulation of opiate receptors on the negative feedback effects of testosterone (T) on luteinizing hormone (LH) secretion in the male rat. In an initial study, castrated male rats received replacement levels of T (2 ng/ml) or chronic morphine (M) treatment f...

journal_title：Neuroendocrinology

authors： Gabriel SM,Simpkins JW,Kalra SP,Kalra PS

更新日期：1985-01-01 00:00:00

abstract：:The facilitation of sexual receptivity by oxytocin (OT) in female rats is related to the regulation of oxytocin receptors (OTR) by ovarian steroids in the ventromedial nuclei (VMN) of the hypothalamus. In a previous study, we have shown that estradiol benzoate (EB) causes a twofold increase in OTR binding in the VMN. ...

journal_title：Neuroendocrinology

authors： Coirini H,Johnson AE,Schumacher M,McEwen BS

更新日期：1992-03-01 00:00:00

abstract：INTRODUCTION:Small-intestinal neuroendocrine tumors (SI-NET) are situated preferentially within the ileum. The aim was to describe a potential difference in location between unifocal and multiple ileal-NET. METHODS:Between December 2010 and December 2019, all consecutive patients who underwent resection in our Europea...

journal_title：Neuroendocrinology

authors： Kalifi M,Walter T,Milot L,Hervieu V,Millot I,Gibert B,Roche C,Forestier J,Lombard-Bohas C,Pasquer A,Poncet G

更新日期：2020-09-30 00:00:00

abstract：:The regulation of prolactin secretion by tuberoinfundibular dopamine (DA) neurons appears to be altered in the aged rat: the concentration of prolactin in the serum increases and the activity of the tuberoinfundibular DA neurons decreases. In the young female rat a brief period of stress reduces the tuberoinfundibular...

journal_title：Neuroendocrinology

authors： Demarest KT,Moore KE,Riegle GD

更新日期：1987-05-01 00:00:00

abstract：:We have previously shown that the serotonergic regulation of renin secretion from the kidneys is mediated by a renin-releasing factor (RRF) that is present in both plasma and hypothalamus. The present studies were designed to determine the distribution of RRF in the brain and peripheral tissues and to test whether RRF...

journal_title：Neuroendocrinology

authors： Urban JH,Brownfield MS,Levine JE,Van de Kar LD

更新日期：1992-05-01 00:00:00

abstract：:The effect of estrogen on prolactin (PRL) synthesis at a single-cell level was studied by in situ hybridization and immunohistochemistry. Long-term estrogen treatment increased PRL-containing cells from 10-20% of total cell population to 80-90%, as revealed by immunohistochemistry. PRL mRNA containing cells also incre...

journal_title：Neuroendocrinology

authors： Yamamoto N,Seo H,Suganuma N,Matsui N,Nakane T,Kuwayama A,Kageyama N

更新日期：1986-01-01 00:00:00

abstract：:The neurohypophysial peptide hormone [Arg8]vasopressin (AVP) has well documented pressor effects in the periphery. These are mediated by vasopressin receptors (VPRs) of the V1a subtype, expressed by vascular smooth muscle cells, which induce vascular contraction when activated. AVP also has effects on the vasculature ...

journal_title：Neuroendocrinology

authors： Sermasi E,Howl J,Pyner S,Wheatley M,Coote JH

更新日期：1995-12-01 00:00:00

abstract：:We have examined the effect of electrical stimulation in the subfornical organ (SFO) on the activity of neurons in the medial septum and diagonal band of Broca (MS-DBB) which project to the median eminence in the rat. Previous studies have suggested that septal neurons with such projections are luteinizing hormone rel...

journal_title：Neuroendocrinology

authors： Donevan SD,Ferguson AV

更新日期：1988-07-01 00:00:00

abstract：:The neuroanatomical distribution and morphology of neurons that produce gonadotropin-releasing hormone (GnRH) in the brain of the postpubertal male Djungarian hamster was studied using light microscopic immunocytochemistry. Analysis of every section from the rostral olfactory tubercle to the medial basal hypothalamus ...

journal_title：Neuroendocrinology

authors： Yellon SM,Lehman MN,Newman SW

更新日期：1990-02-01 00:00:00

abstract：:We measured the concentration of oxytocin and vasopressin in microdissected areas of the hypothalamus and posterior pituitary in weanling and adult female rats. Oxytocin concentration was significantly less in adult rats as compared to weanling rats in the supraoptic nucleus, median eminence, and retrochiasmatic area ...

journal_title：Neuroendocrinology

authors： Jackson R,George JM

更新日期：1980-08-01 00:00:00

abstract：:Acetylcholinesterase (AChE) activity, and concentrations of monoamines, monoamine metabolites and oxytocin (OT) were measured in the cerebrospinal fluid (CSF) of sheep during late pregnancy, labour, parturition, vaginocervical stimulation, lamb separation and suckling. Concentrations of AChE, 4-hydroxy-3 methoxyphenyl...

journal_title：Neuroendocrinology

authors： Kendrick KM,Keverne EB,Baldwin BA,Sharman DF

更新日期：1986-01-01 00:00:00

abstract：:After the combined treatment with dexamethasone, morphine and pentobarbitone, the electrical stimulation in the rat tuber cinereum induces a rise in plasma corticosterone (CS) level, probably by direct stimulation of the corticoliberin-producing neural elements and the consecutive ACTH release. We have attempted to lo...

journal_title：Neuroendocrinology

authors： Makara GB,Stark E,Palkovits M

更新日期：1978-01-01 00:00:00

abstract：:Methanol extracts of rat plasma resulted in release of prolactin (PRL) from rat hemipituitaries in vitro with a linear log-dose relationship. This prolactin-releasing factor (PRF)-like activity was not altered in plasma from rats treated with bromocryptine or chlorpromazine despite significant suppression and stimulat...

journal_title：Neuroendocrinology

authors： Garthwaite TL,Hagen TC

更新日期：1979-01-01 00:00:00

abstract：:The effects of intracerebroventricularly (i.c.v.) injected interleukin-1 beta (IL-1 beta: 1, 2.5, 10, and 25 ng) were studied on plasma growth hormone (GH) and prolactin (PRL) concentrations in freely moving rats chronically implanted with i.c.v. cannulas and intracardial catheters. Significant changes in PRL secretio...

journal_title：Neuroendocrinology

authors： Payne LC,Obal F Jr,Opp MR,Krueger JM

更新日期：1992-07-01 00:00:00

abstract：:The present study investigates the role of melanotrope proopiomelanocortin-derived peptide in the interrenal stress response to different stressors in male gilthead sea bream, Sparus aurata. Plasma cortisol and acetyl salmon endorphin (acetyl s-EP), as well as pituitary acetyl s-EP contents, were measured during two s...

journal_title：Neuroendocrinology

authors： Mosconi G,Gallinelli A,Polzonetti-Magni AM,Facchinetti F

更新日期：1998-08-01 00:00:00

abstract：:Molecules of astrocyte origin influence gonadotropin-releasing hormone (GnRH) release and GnRH neuronal growth and differentiation. Furthermore, type 1 astrocytes express steroid receptors, presenting the possibility that steroid actions on GnRH neurons might occur via astrocytes. Utilizing GT1-7 cells, a GnRH-secreti...

journal_title：Neuroendocrinology

authors： Zwain IH,Arroyo A,Amato P,Yen SS

更新日期：2002-06-01 00:00:00

abstract：:Bromocriptine or other dopamine agonists are usually effective for the treatment of prolactin-secreting adenomas. Five to 18% of prolactinomas, however, do not respond to such therapy. We have shown previously that such resistance to bromocriptine correlates with reduced binding to the D2 receptor subtype of dopamine,...

journal_title：Neuroendocrinology

authors： Caccavelli L,Feron F,Morange I,Rouer E,Benarous R,Dewailly D,Jaquet P,Kordon C,Enjalbert A

更新日期：1994-09-01 00:00:00

abstract：:High affinity binding of 3H-flunitrazepam (FNZP) to crude membrane preparations of bovine pineal membranes was examined by a rapid filtration procedure through Whatman GFB paper. At 0 degrees C binding reached equilibrium in about 20 min. Scatchard analysis of data at equilibrium revealed a single population of bindin...

journal_title：Neuroendocrinology

authors： Lowenstein PR,Cardinali DP

更新日期：1983-08-01 00:00:00

abstract：:Sexual behavior and elevation of gonadal steroids were induced in both male and female New Zealand white rabbits following injection of synthetic beta (1-24) ACTH into the lateral cerebral ventricle. In blood assays collected by cardiac puncture, testosterone, progesterone and corticosterone were all increased above b...

journal_title：Neuroendocrinology

authors： Haun CK,Haltmeyer GC

更新日期：1975-01-01 00:00:00