Regulation of prolactin secretion by dopamine at the level of the hypothalamus in the turkey.

abstract：:Met-enkephalin concentrations in the anterior pituitary gland were shown to decline dramatically within the first 24 h after reserpine treatment, with effects apparent as early as 6 h. This was followed by subsequent repletion and late augmentation of Met-enkephalin levels 3 weeks following reserpine. Treatment with t...

journal_title：Neuroendocrinology

authors： George SR,Kertesz M

更新日期：1988-02-01 00:00:00

abstract：:The release of the decapeptide gonadotropin-releasing hormone (GnRH) from neuroterminals in the median eminence varies depending upon the stage of development, time of day, reproductive season, and day of the ovarian cycle. With respect to the biosynthetic events responsible for such alterations in GnRH release, we ha...

journal_title：Neuroendocrinology

authors： Gore AC

更新日期：1998-10-01 00:00:00

abstract：:Activin A immunoreactivity has been localized within the nucleus tractus solitarius and its projections into regions of the hypothalamus such as the paraventricular nucleus. However, the function of activin within the central nervous system is unclear. Because these regions of the brain are involved in the regulation ...

journal_title：Neuroendocrinology

authors： Schwall RH,Jakeman LB,Altar CA

更新日期：1993-03-01 00:00:00

abstract：:In order to search for candidate genes related to pituitary adenoma aggressiveness, the present investigation was intended to compare the mRNA expression profile from a pool of four nonfunctional pituitary adenomas (NFPA) with a spinal cord metastasis of a nonfunctional pituitary carcinoma (MNFPC). The metallothionein...

journal_title：Neuroendocrinology

authors： Giorgi RR,Correa-Giannella ML,Casarini AP,Machado MC,Bronstein MD,Cescato VA,Giannella-Neto D

更新日期：2005-01-01 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：:Infusion of 2 nmol atrial natriuretic factor (ANF) into the third cerebroventricle of conscious, orchidectomized male rats results in a significant inhibition of prolactin (PRL) secretion. This effect is prevented by prior treatment with the dopamine receptor antagonist, domperidone. Furthermore, domperidone reverses ...

journal_title：Neuroendocrinology

authors： Samson WK,Bianchi R,Mogg R

更新日期：1988-03-01 00:00:00

abstract：:Using specific antibodies to corticotrophin-releasing factor (CRF) and arginine vasopressin (AVP) we have immunocytochemically located cells and fibres containing these peptides in sheep fetuses. CRF neurones were first detected, in low frequency, in the paraventricular nuclei of fetuses of 90 days of gestation (term ...

journal_title：Neuroendocrinology

authors： Levidiotis M,Oldfield B,Wintour EM

更新日期：1987-11-01 00:00:00

abstract：:The effects of hepatic vagotomy upon the circadian rhythm of lipogenesis and body fat store levels were tested in seasonally obese Syrian hamsters. Lipogenesis was studied 8 weeks after surgery by measuring the incorporation of label into epididymal and retroperitoneal fat pad lipid in animals killed 30 min after intr...

journal_title：Neuroendocrinology

authors： Martin DD,Cincotta AH,Meier AH

更新日期：1990-07-01 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：:Vasopressin-containing neurosecretory cells are partly regulated by GABAergic neurons present both at the hypothalamic and the pituitary level. In the present work, we compared GABA effects on vasopressin release from posterior pituitaries of Sprague-Dawley (SPD), Wistar (W), Wistar-Kyoto (WKY) and spontaneously hyper...

journal_title：Neuroendocrinology

authors： Magnusson AM,Meyerson BJ

更新日期：1993-11-01 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：:The rise in the concentration of LH in the serum that takes place in ovariectomized, estrogen-primed rats exposed to the odors from a cage with bedding soiled by a male rat was completely prevented by bilateral lesions destroying the ventral premammillary (PMv) nuclei. These results suggest that the pheromonal stimuli...

journal_title：Neuroendocrinology

authors： Beltramino C,Taleisnik S

更新日期：1985-08-01 00:00:00

abstract：:Cell-intact patch-clamp recording was used to determine the electrophysiological responses of sheep anterior pituitary gonadotropes to stimulation with gonadotropin-releasing hormone (GnRH). Cells were identified prior to recording by reverse haemolytic plaque assay (RHPA), or using morphological criteria in preparati...

journal_title：Neuroendocrinology

authors： Heyward PM,Chen C,Clarke IJ

更新日期：1993-12-01 00:00:00

abstract：:The purpose of these studies was to determine the temporal requirements and time of day required for progesterone (P4) to amplify versus extinguish LH surges. The experimental animal model used in these studies was the 7-day ovariectomized rat (day 0) treated continuously with estradiol (E2) for 2-4 days (days 2, 3 or...

journal_title：Neuroendocrinology

authors： Barraclough CA,Camp P,Weiland N,Akabori A

更新日期：1986-01-01 00:00:00

abstract：:Allopregnanolone is a neuroactive steroid present in the brain, but also measurable in systemic circulation. It exhibits anxiolytic and anticonvulsant effects and is able to produce hyperphagia. Since eating behavior disturbances and increased peripheral basal sympathetic activity have been reported in obese subjects,...

journal_title：Neuroendocrinology

authors： Menozzi R,Florio P,Bondi M,Luisi S,Cobellis L,Genazzani AR,Del Rio G,Petraglia F

更新日期：2002-02-01 00:00:00

abstract：:The neurotransmitter and andrenoceptors involved in the inhibition of luteinizing hormone (LH) release induced by stimulating the locus ceruleus nucleus (LC) have been characterized in ovariectomized, estrogen-primed rats in which the release of LH was triggered by electrical stimulation of the medial preoptic area. B...

journal_title：Neuroendocrinology

authors： Dotti C,Taleisnik S

更新日期：1984-01-01 00:00:00

abstract：:In the present study we utilized the 7315a PRL- and ACTH-secreting tumor to induce a hyperprolactinemic (HP) state sufficient to profoundly suppress the postcastration LH rise in female rats. Tumor-induced prolactin levels which ranged 2,000-3,000 ng/ml substantially reduced the LH rise in both ovariectomized (OVX) an...

journal_title：Neuroendocrinology

authors： Shu C,Selmanoff M

更新日期：1991-09-01 00:00:00

abstract：:In the present article we report that in vivo LHRH output as measured at the anterior pituitary following castration significantly increased, due to larger and more frequent LHRH signals arriving to this gland. This contrasts with the decreased amplitude and overall mean LHRH release of castrate males bearing a push-p...

journal_title：Neuroendocrinology

authors： Dluzen DE,Ramirez VD

更新日期：1987-04-01 00:00:00

abstract：:It is not known where melatonin acts to influence the neuroendocrine axis of seasonally breeding mammals. However, since the pars tuberalis (PT) contains the highest density of melatonin receptors, this adenohypophyseal subdivision is a potential target. Gonadotropes are the only immunocytochemically detectable adenoh...

journal_title：Neuroendocrinology

authors： Skinner DC,Robinson JE

更新日期：1997-10-01 00:00:00

abstract：:In situ hybridization was used to examine the effects of amygdala kindling on the expression of mRNAs for mineralocorticoid receptors (MR) and glucocorticoid receptors (GR) in the rat hippocampus. Kindling increased MR mRNA levels in the dentate gyrus of the hippocampus 4 h after the last seizure, and these levels rem...

journal_title：Neuroendocrinology

authors： Clark M,Smith MA,Weiss SR,Post RM

更新日期：1994-05-01 00:00:00

abstract：:Endocrine pancreatic tumours (EPTs) are uncommon, with a major challenge to alert physicians to their recognition and requirements of treatment. Functioning EPTs cause well-known clinical syndromes of hormone excess. Insulinomas, gastrinomas and glucagonomas are most common; vipomas and somatostatinomas are rare. EPTs...

journal_title：Neuroendocrinology

authors： Akerström G,Hellman P,Hessman O,Osmak L

更新日期：2004-01-01 00:00:00

abstract：:In previous studies, we have shown that male Wistar rats exposed to a single inescapable stressor session (15 min restraint) exhibited 24 h later an anxiogenic-like behavior in the elevated plus-maze (EPM), which was reversed by inhibition of corticosterone (CS) synthesis with metyrapone (75 mg/kg i.p.) 3 h before str...

journal_title：Neuroendocrinology

authors： Calvo N,Volosin M

更新日期：2001-04-01 00:00:00

abstract：:In the Djungarian hamster Phodopus sungorus, the daily temporal pattern of synthesis and release of pineal hormone melatonin, mainly the length of the period of elevated melatonin levels, may be involved in transferring the information on day length to the neuroendocrine-gonadal axis. The present study investigated th...

journal_title：Neuroendocrinology

authors： Illnerová H,Hoffmann K,Vanĕcek J

更新日期：1984-03-01 00:00:00

abstract：:Previous studies indicate that 7 days after testicular administration of naloxone, serum testosterone (T) concentration and basal T secretion in vitro decrease significantly. In neonatal rats, short-term (2 h) intratesticular treatment with 0.3 micrograms (D-Met2-Pro5)-enkephalinamide suppresses steroidogenesis. In th...

journal_title：Neuroendocrinology

authors： Gerendai I,Nemeskéri A,Csernus V

更新日期：1992-09-01 00:00:00

abstract：:Infusion of the three human prepro-VIP derived peptides [vasoactive intestinal peptide (VIP), peptide histidine methionine (PHM) and the newly discovered peptide histidine valine (PHV-42)] at a constant nominal rate of 5 pmol/kg/min in 6 healthy volunteers for 60 min resulted in plateau plasma levels of 56,475 and 1,0...

journal_title：Neuroendocrinology

authors： Yiangou Y,Gill JS,Chrysanthou BJ,Burrin J,Bloom SR

更新日期：1988-12-01 00:00:00

abstract：:In these three experiments, we investigated the effect of adrenalectomy and adrenal demedullation on the stress-induced impairment of long-term potentiation (LTP) in the rat hippocampal slice. In the first, adrenalectomy alone resulted in a significant reduction in LTP, while exposure to stress resulted in a further r...

journal_title：Neuroendocrinology

authors： Shors TJ,Levine S,Thompson RF

更新日期：1990-01-01 00:00:00

abstract：:In pituitary cells, c-fos transcription induced by releasing hormones and growth factors results from enhanced initiation of transcription, and sustained elongation of transcripts beyond the first intron. We studied the regulatory role of the first intron of the mouse c-fos gene for the control of its transcription in...

journal_title：Neuroendocrinology

authors： van Haasteren G,Li S,Ryser S,Schlegel W

更新日期：2000-12-01 00:00:00

abstract：:The developmental pattern of hypophyseal luteinizing hormone (LH) during fetal and early postnatal life, and the capacity of fetal and early postnatal pituitaries to synthesize, release and store LH in the absence of any hypothalamic influence were investigated. Pituitary radioimmunoassayable LH was detectable by feta...

journal_title：Neuroendocrinology

authors： Nemeskéri A,Kurcz M,Halász B

更新日期：1984-05-01 00:00:00

abstract：:The expression of the alpha-subunit of the glycoprotein hormones was studied in the developing rat pituitary by in situ hybridization and immunocytochemical techniques. The alpha-subunit mRNA labelling was detected in Rathke's pouch at 12 days' gestation (E12); at E13, it was exclusively concentrated in the pars tuber...

journal_title：Neuroendocrinology

authors： Stoeckel ME,Hindelang C,Klein MJ,Poissonnier M,Félix JM

更新日期：1993-12-01 00:00:00

abstract：:The release of endogenous noradrenaline in the anterior hypothalamus was studied with microdialysis perfusion in freely moving rats that were subjected to immobilization stress. Experiments were carried out in sham-adrenalectomized and adrenalectomized rats that were first given drinking water containing corticosteron...

journal_title：Neuroendocrinology

authors： Vetrugno GC,Lachuer J,Perego C,Miranda E,De Simoni MG,Tappaz M

更新日期：1993-05-01 00:00:00