Photoperiodic effects in the Djungarian hamster. Rate of testicular regression and extension of pineal melatonin pattern depend on the way of change from long to short photoperiods.

abstract：:In addition to the magnocellular hypothalamic nuclei, arginine vasopressin (AVP)-containing neurons have also been identified in limbic structures, including the hippocampus and amygdala. In the present study, we compared the qualitative properties of the in vitro release of AVP from the dissected hypothalamus with th...

journal_title：Neuroendocrinology

authors： Raber J,Pich EM,Koob GF,Bloom FE

更新日期：1994-03-01 00:00:00

abstract：:Measurements of electrical activity and intracellular Ca(2+) levels were performed in perforated-patch clamped GH(3) cells to determine the contribution of large-conductance calcium-activated K(+) (BK) channels to action potential repolarization and size of the associated Ca(2+) oscillations. By examining the dependen...

journal_title：Neuroendocrinology

authors： Miranda P,de la Peña P,Gómez-Varela D,Barros F

更新日期：2003-03-01 00:00:00

abstract：:Vasoactive intestinal peptide (VIP), a prolactin (PRL)-releasing factor, has been shown to be synthesized within the anterior pituitary. To test the hypothesis that estrogens increase PRL secretion, at least in part, by stimulating VIP secretion, the concentrations of VIP, peptide histidine isoleucine (PHI) and prepro...

journal_title：Neuroendocrinology

authors： Lam KS,Srivastava G,Lechan RM,Lee T,Reichlin S

更新日期：1990-11-01 00:00:00

abstract：:Tissue-specific stem cells are uncovered in a growing number of organs by their molecular expression profile and their potential for self-renewal, multipotent differentiation and tissue regeneration. Whether the pituitary gland also contains a pool of versatile 'master' cells that drive homeostatic, plastic and regene...

journal_title：Neuroendocrinology

authors： Vankelecom H

更新日期：2007-01-01 00:00:00

abstract：:Acute immobilization stress results in changes in the concentration of both dopamine and noradrenaline in specific forebrain limbic system areas, whereas the adrenaline levels remain unchanged. Changes in dopamine concentrations are more restricted than those in noradrenaline concentrations. Dopamine levels are increa...

journal_title：Neuroendocrinology

authors： Saavedra JM

更新日期：1982-11-01 00:00:00

abstract：:The volume of the sexually dimorphic nucleus in the preoptic area (SDN-POA) of the rat brain is severalfold larger in adult male rats than in adult females. This sex difference in brain structure was previously shown to develop under the influence of androgenic and estrogenic hormones during the perinatal period. We t...

journal_title：Neuroendocrinology

authors： Döhler KD,Coquelin A,Davis F,Hines M,Shryne JE,Sickmöller PM,Jarzab B,Gorski RA

更新日期：1986-01-01 00:00:00

abstract：INTRODUCTION:Several studies have suggested that diet, especially one enriched in microbiota-fermented fibers or fat, regulates behavior. The underlying mechanisms are currently unknown. We previously reported that certain macronutrients (fermentable fiber and protein) regulate energy homeostasis via the activation of ...

journal_title：Neuroendocrinology

authors： Sinet F,Soty M,Zemdegs J,Guiard B,Estrada J,Malleret G,Silva M,Mithieux G,Gautier-Stein A

更新日期：2021-01-11 00:00:00

abstract：:Serotonin and dopamine neurons have been shown to exert a stimulatory and inhibitory control, respectively, over pituitary release of beta-endorphin-like immunoreactivity (beta-END-LI). In the present study we sought to determine whether an interaction exists between these two reciprocal mechanisms regulating beta-END...

journal_title：Neuroendocrinology

authors： Sapun-Malcolm D,Farah JM Jr,Mueller GP

更新日期：1986-01-01 00:00:00

abstract：:The arcuate nucleus-median eminence complex (AM) undergoes major structural and functional changes during normal puberty or if exposed to a pulse of estradiol in the prepuberal period. Those changes are expressed by increased synaptogenesis and by a drastic alteration in the feedback control of anterior pituitary glan...

journal_title：Neuroendocrinology

authors： Rodriguez-Sierra JF,Heydorn WE,Creed GJ,Jacobowitz DM

更新日期：1987-06-01 00:00:00

abstract：:In vivo and in vitro methods have been used to compare the effects of opioid receptor blockade on the functional activity of the hypothalamo-pituitary-gonadal axis in adult (200 g) and sexually immature (50 g) male rats. In the adult, a single injection of the mu-receptor antagonist, naloxone (500 micrograms/100 g bod...

journal_title：Neuroendocrinology

authors： Leposavic G,Cover PO,Buckingham JC

更新日期：1991-06-01 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：: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：:A consistent group of gonadotropin-releasing hormone (GnRH) cell bodies occurs in the ventral hypothalamic tract at the infundibular lip (IL), just below the arcuate nucleus (ARC), at the site of the so-called GnRH 'pulse generator'. Immunocytochemical studies were performed to examine contacts between these GnRH neur...

journal_title：Neuroendocrinology

authors： Thind KK,Goldsmith PC

更新日期：1988-03-01 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 obese gene (OB) product, leptin, has been shown to exert control on metabolic processes such as food intake and body weight homeostasis, possibly through a neuropeptide Y (NPY) neurotransmission. More recently, leptin has been shown to control several neuroendocrine axes, modulating pituitary hormone secretions in...

journal_title：Neuroendocrinology

authors： Vuagnat BA,Pierroz DD,Lalaoui M,Englaro P,Pralong FP,Blum WF,Aubert ML

更新日期：1998-05-01 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：:Previous work has demonstrated that N-methyl-D-aspartate (NMDA) is capable of stimulating luteinizing hormone release in a variety of species. Interestingly, the ability of NMDA to stimulate luteinizing hormone release is significantly compromised in castrated male and female rats as compared to intact animals. The pu...

journal_title：Neuroendocrinology

authors： Brann DW,Zamorano PL,Chorich LP,Mahesh VB

更新日期：1993-12-01 00:00:00

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：:Experiments were carried out to increase the endogenous levels of TRH in brain and spinal cord. After 7 days of continuous oral ingestion of TRH analogs (D-pGlu-Leu-ProNH2, pGlu-Leu-Pro, pGlu-Pro-ProNH2, or pGlu-Leu-pyrrolidide), spinal cord and brain levels of TRH were elevated, whereas the content of TRH metabolite,...

journal_title：Neuroendocrinology

authors： Prasad C,Eloby-Childress S,Iriuchijima T,Wilber JF,Szirtes T,Kisfaludy L

更新日期：1989-02-01 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：:Characteristic increases in neuronal activity coincident with the pulsatile release of luteinizing hormone from the pituitary gland have been recorded from electrodes chronically implanted in the medial basal hypothalamus of the rhesus monkey. This electrophysiologic manifestation of the hypothalamic 'pulse generator'...

journal_title：Neuroendocrinology

authors： Wilson RC,Kesner JS,Kaufman JM,Uemura T,Akema T,Knobil E

更新日期：1984-09-01 00:00:00

abstract：:The acute effects of hypothalamic electrical stimulation on the secretion of FSH and LH have been examined in anestrous and estrous ferrets. Basal levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were higher in the anestrous than in the estrous animals; the anestrous animals showed a more mark...

journal_title：Neuroendocrinology

authors： Donovan BT,ter Haar MB

更新日期：1977-01-01 00:00:00

abstract：:Introduction Dysregulation of the mTORC1-dependent pathways in pancreatic neuroendocrine neoplasms (PanNENs) underlies the introduction of the mTORC1 inhibitor everolimus as treatment of advanced progressive PanNENs. Although everolimus significantly increases progression free survival, most patients acquire secondary...

journal_title：Neuroendocrinology

authors： Terracciano F,Capone A,Montori A,Rinzivillo M,Partelli S,Panzuto F,Pilozzi E,Arcidiacono PG,Sette C,Capurso G

更新日期：2020-07-02 00:00:00

abstract：:Previous studies have shown that the stimulation of LH release by the opiate receptor blocker, naloxone, can be prevented by catecholamine synthesis inhibitors, suggesting opiate regulation of catecholamine release. The present study tested whether an opiate agonist and antagonist would affect the depletion of hypotha...

journal_title：Neuroendocrinology

authors： Adler BA,Crowley WR

更新日期：1984-03-01 00:00:00

abstract：:Light deprivation by blinding or exposure to short photoperiod results in depressed prolactin (PRL) cell activity and gonadal regression in the male Syrian hamster after at least 42-56 days of treatment, and both of these events can be prevented if pineal removal accompanies light deprivation. In the present study, we...

journal_title：Neuroendocrinology

authors： Massa JS,Blask DE

更新日期：1989-11-01 00:00:00

abstract：:The effect of angiotensin II (AII) on plasma prolactin (PRL) concentrations was evaluated in ovariectomized rhesus monkeys which had been conditioned to chair restraining. Intracerebro-ventricular (i.v.t.) microinjections of AII increased PRL plasma levels in a dose-dependent manner. PRL values peaked at 10 min after ...

journal_title：Neuroendocrinology

authors： Dufy-Barbe L,Rodriguez F,Arsaut J,Verrier D,Vincent JD

更新日期：1982-10-01 00:00:00

abstract：:The c-fos protein is rapidly induced in hypothalamic magnocellular nuclei following hemorrhage. We used specific antibodies directed against c-fos and either vasopressin (AVP) or oxytocin (OT) neurophysin to investigate c-fos activation in individual AVP and OT neurons. AVP and OT neurons expressed c-fos in response t...

journal_title：Neuroendocrinology

authors： Roberts MM,Robinson AG,Fitzsimmons MD,Grant F,Lee WS,Hoffman GE

更新日期：1993-03-01 00:00:00

abstract：:The effect of glucocorticoids on corticotropin-releasing factor (CRF) gene expression was studied by combination of in situ hybridization histochemistry and steroid implantation. Dexamethasone micropellets, implanted around the hypothalamic paraventricular nucleus (PVN), caused total inhibition of the hybridizable CRF...

journal_title：Neuroendocrinology

authors： Kovács KJ,Mezey E

更新日期：1987-10-01 00:00:00

abstract：:We determined the effect of 17 beta-estradiol (E2) on synthesis and release of luteinizing hormone (LH) induced by drugs which activate intracellular signal transduction mechanisms in rat anterior pituitary cells. Cells were pretreated with E2 (6 x 10(-10) M) or diluent for 24 h, then washed and incubated for 4 h with...

journal_title：Neuroendocrinology

authors： Liu TC,Jackson GL

更新日期：1990-06-01 00:00:00

abstract：:We have attempted to elucidate the effect of glucose concentrations on the release of thyrotropin-releasing hormone (TRH), a brain neuropeptide possessing glucoregulatory function, from rat hypothalamic slices in vitro. Rat hypothalamic slices were preincubated for 60 min at 37 degrees C in Krebs-Ringer bicarbonate (K...

journal_title：Neuroendocrinology

authors： Yamaguchi M,Iriuchijima T,Michimata T,Mori M

更新日期：1991-04-01 00:00:00