Vasopressin has a direct effect on prolactin release in male rats.

abstract：:Normal 4-day cyclic rats were sacrificed at 10 a.m. and 3 p.m. on proestrus or estrus and at 10 a.m. on metestrus. Noradrenaline (NA), dopamine (DA) and tryptophan (T) concentrations varied only slightly. Serotonin (5-HT) concentrations showed characteristic changing patterns in many hypothalamic, limbic and midbrain ...

journal_title：Neuroendocrinology

authors： Kueng W,Wirz-Justice A,Menzi R,Chappuis-Arndt E

更新日期：1976-01-01 00:00:00

abstract：:To study the role of the hypothalamus in the regulation of growth hormone (GH) synthesis, the rate of amino acid incorporation into GH in vitro was examined in rats with anterolateral deafferentation of the medial basal hypothalamus. Amino acid incorporation into GH (GH synthesis) decreased significantly 7 days after ...

journal_title：Neuroendocrinology

authors： Ieiri T,Ishikawa K,Suzuki M,Shimoda S

更新日期：1988-05-01 00:00:00

abstract：:The pressor effect of intravenous angiotensin II (AII) was compared in the unrestrained rat before and after electrolytic lesions of the subfornical organ (SFO), the circumventricular organ of the dorsal third cerebral ventricle. Abdominal aortic and venal caval catheters were used to measure arterial pressure and to ...

journal_title：Neuroendocrinology

authors： Mangiapane ML,Simpson JB

更新日期：1980-12-01 00:00:00

abstract：:Many aspects of reproductive neuroendocrine function and sexual behavior are responsive to both androgens and estrogens, suggesting that receptors for these steroid hormones may reside within single cells in brain regions that control reproductive function. We determined the distribution of estrogen receptor-containin...

journal_title：Neuroendocrinology

authors： Wood RI,Newman SW

更新日期：1995-11-01 00:00:00

abstract：:The differences in plasma prolactin concentration between normal and estradiol-implanted male rats were compared after treatment with 3 different stimulating agents of prolactin secretion [ether anesthesia, pimozide (a "specific' dopaminergic receptor blocking agent) and TRH] using conscious, free-moving rats implante...

journal_title：Neuroendocrinology

authors： Piercy M,Shin SH

更新日期：1980-10-01 00:00:00

abstract：:Chronic hyperprolactinemia in the rat is associated with suppression of plasma gonadotropin concentrations. The reduction of gonadotropins is considered to be due to either an inhibitory effect of prolactin (PRL) on pituitary gonadotropin secretion and/or suppression of hypothalamic gonadotropin-releasing hormone (GnR...

journal_title：Neuroendocrinology

authors： Calogero AE,Weber RF,D'Agata R

更新日期：1993-01-01 00:00:00

abstract：:The role of endogenous opiate peptides in the mesencephalic central gray (MCG) and their possible interactions with gonadotropin-releasing hormone (GnRH) in the regulation of lordosis behavior was assessed in ovariectomized, estrogen-treated and estrogen-progesterone-treated female rats. Lordosis behavior triggered by...

journal_title：Neuroendocrinology

authors： Sirinathsinghji DJ

更新日期：1984-09-01 00:00:00

abstract：:Pathologies involving the pituitary stalk (PS) are generally revealed by the presence of diabetes insipidus. The availability of MRI provides a major diagnostic contribution by enabling the visualization of the site of the culprit lesion, especially when it is small. However, when only an enlarged PS is found, the eti...

journal_title：Neuroendocrinology

authors： Hána V,Salenave S,Chanson P

更新日期：2020-01-01 00:00:00

abstract：:In the Siberian hamster the pituitary content of bioassayable MSH has been shown to be seasonally variable, being greater during the long days of spring and summer than during the short days of autumn and winter. Similar changes in the pituitary content of both bioassayable MSH and immunoreactive alpha MSH can be indu...

journal_title：Neuroendocrinology

authors： Logan A,Weatherhead B

更新日期：1980-05-01 00:00:00

abstract：:A prolactin (PRL) surge occurs in the female rat during proestrus in response to elevated estradiol levels. The elevated release of ovarian steroids on the day of proestrus is also associated with sexual receptivity. Mating triggers twice-daily PRL surges that supplant the proestrous PRL surge and are responsible for ...

journal_title：Neuroendocrinology

authors： Yang S,Lee Y,Voogt JL

更新日期：1999-04-01 00:00:00

abstract：:Intestinal gluconeogenesis is a recently described function in intestinal glucose metabolism. In particular, the intestine contributes around 20-25% of total endogenous glucose production during fasting. Intestinal gluconeogenesis appears to regulate energy homeostasis via a neurally mediated mechanism linking the ent...

journal_title：Neuroendocrinology

authors： Mithieux G

更新日期：2014-01-01 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 differential role of porcine follicular fluid (pFF) in regulating follicle-stimulating hormone (FSH) and luteinizing hormone (LH) release in vivo in situations of different gonadotropin releasing hormone (GnRH) backgrounds was studied. In experiment 1, 2-week ovariectomized rats injected intravenously with 4, 16 o...

journal_title：Neuroendocrinology

authors： Charlesworth MC,Grady RR,Shin L,Vale WW,Rivier C,Rivier J,Schwartz NB

更新日期：1984-03-01 00:00:00

abstract：BACKGROUND:Neuroendocrine tumors (NETs) are rare and characterized by a heterogeneous clinical course and an unmet need for better prognostic markers. Plasma cell-free DNA (cfDNA) has prognostic value in other malignancies but is not previously investigated in NETs. We studied cfDNA levels in patients with mainly low g...

journal_title：Neuroendocrinology

authors： Oversoe SK,Sorensen BS,Tabaksblat EM,Gronbaek H,Kelsen J

更新日期：2021-01-18 00:00:00

abstract：:The effects of ovariectomy on the ultrastructure of neurons within the SCH nuclei of the rabbit were investigated. All SCH neurons of the intact controls were similar in that they showed no morphological evidence of enhanced neurosecretory activity. In contrast, two distinct types of neurons were present within the SC...

journal_title：Neuroendocrinology

authors： Clattenburg RE,Montemurro DG,Bruni JE

更新日期：1975-01-01 00:00:00

abstract：:Following the procedure of Jeffcoate et al. [1974] we have successfully obtained a specific antiserum to LH-RH in rabbits, and are utilizing our antibody to study the synthesis of LH-RH by rat hypothalamic tissues in vitro. Our antibody, used at a dilution of 1:20,000, binds 37% of added 125I-labelled LH-RH, and cross...

journal_title：Neuroendocrinology

authors： Hall RW,Steinberger E

更新日期：1976-01-01 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

abstract：:Recordings were made of single unit activity through chronically implanted electrodes within the hypothalamic paraventricular nucleus of freely moving male rats also bearing chronically implanted stimulating electrodes in the preoptic area (POA) and indwelling jugular cannulae. High frequency electrical stimulation of...

journal_title：Neuroendocrinology

authors： Saphier D,Feldman S

更新日期：1986-01-01 00:00:00

abstract：:Structural and functional impairment of the skeletal system remains an important cause of morbidity and disability in patients with Cushing's syndrome (CS). Glucocorticoid (GC) excess inhibits bone formation and calcium absorption from the gut, increases bone resorption, and alters the secretion of gonadotropin and gr...

journal_title：Neuroendocrinology

authors： Kaltsas G,Makras P

更新日期：2010-01-01 00:00:00

abstract：:Progesterone is readily reduced in humans to its A-ring metabolites, allopregnanolone (3 alpha-hydroxy-5 alpha-pregnan-20-one) and pregnanolone (3 alpha-hydroxy-5 beta-pregnan-20-one). The latter have been reported to have anxiolytic, hypnotic and anesthetic actions when administered to laboratory animals and (or) hum...

journal_title：Neuroendocrinology

authors： Freeman EW,Purdy RH,Coutifaris C,Rickels K,Paul SM

更新日期：1993-10-01 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：:Plasma and hypothalamic LHRH was measured by specific radioimmuno-assay in intact and ovariectomized rats, and the values were correlated with peripheral plasma (PP) FSH and LH titers. At most stages of the estrous cycle, plasma LHRH was either undetectable or present at very minimal values. An increase in PP LHRH con...

journal_title：Neuroendocrinology

authors： Wheaton JE,McCann SM

更新日期：1976-01-01 00:00:00

abstract：:It has been well documented that interleukin-1beta (IL-1beta) is a major mediator for recruiting the hypothalamo-pituitary-adrenal (HPA) axis following infectious disease. The recent localization of IL-1beta receptors in neurons of the hippocampus provides further support for the role of IL-1beta as a neurotransmitter...

journal_title：Neuroendocrinology

authors： Mélik Parsadaniantz S,Daugé V,Roques BP,Kerdelhué B

更新日期：1999-02-01 00:00:00

abstract：:The in vitro release of LHRH from hypothalami of adult male rats (intact, 5-day castrates, 5-day castrates replaced with various doses of testosterone) was measured under basal conditions and after the addition of KCl, the opiate antagonist naloxone or the opiate agonist DAGO to the perifusion medium. Hypothalami from...

journal_title：Neuroendocrinology

authors： Nikolarakis KE,Pfeiffer DG,Almeida OF,Herz A

更新日期：1986-01-01 00:00:00

abstract：:An influence of thyroid status on the secretory activity of hypothalamic dopaminergic neurons was observed in adult rats and its involvement in the regulation of prolactin (PRL) secretion was examined. The secretory activity of the tuberoinfundibular dopaminergic (TIDA) neurons was evaluated by measurement of dopamine...

journal_title：Neuroendocrinology

authors： Reymond MJ,Benotto W,Lemarchand-Béraud T

更新日期：1987-06-01 00:00:00

abstract：:The study was designed to determine whether the ability of central oxytocin (OT) to stimulate gonadotropin-releasing hormone (GnRH) on the afternoon of proestrus (PE) in the cycling female rat is mediated at the level of GnRH terminals within the median eminence (ME), or at higher hypothalamic levels where GnRH cell b...

journal_title：Neuroendocrinology

authors： Selvage D,Johnston CA

更新日期：2001-08-01 00:00:00

abstract：:The exact physiological basis of acute growth hormone (GH) suppression by oral glucose is not fully understood. Glucose-mediated increase in hypothalamic somatostatin seems to be the most plausible explanation. Attempts to better understand its underlying mechanisms are compromised by species disparities in the respon...

journal_title：Neuroendocrinology

authors： Hage M,Kamenický P,Chanson P

更新日期：2019-01-01 00:00:00

abstract：:Hypophysectomized male rats with adenohypophyses grafted under the kidney capsule (HG rat) for 3 weeks with or without estradiol implantation, were used to examine prolactin (PRL) secretion independent of hypothalamic influence. Changes in the circulating PRL concentration were monitored by taking blood samples every ...

journal_title：Neuroendocrinology

authors： Shin SH,Reifel CW

更新日期：1981-03-01 00:00:00

abstract：BACKGROUND:Synaptic plasticity is the neuronal capacity to modify the function and structure of dendritic spines (DS) in response to neuromodulators. Sex steroids, particularly 17β-estradiol (E2) and progesterone (P4), are key regulators in the control of DS formation through multiprotein complexes including WAVE1 prot...

journal_title：Neuroendocrinology

authors： Uzair ID,Flamini MI,Sanchez AM

更新日期：2020-01-01 00:00:00

abstract：BACKGROUND:Kisspeptins are recognized as important stimulators of gonadotropin-releasing hormone (GnRH) and gonadotropin secretion. In sheep, the nonbreeding (anestrous) period is characterized by reduced Kiss1 mRNA expression in the hypothalamus. The aim of the present study was to determine whether the response to ki...

journal_title：Neuroendocrinology

authors： Smith JT,Saleh SN,Clarke IJ

更新日期：2009-01-01 00:00:00