Testosterone modulates oxytocin binding in the hypothalamus of castrated male rats.

abstract：:The functions of oxytocin in the female are thought to be confined to the processes of milk ejection and parturition. In this study the role of oxytocin in the body's response to stressful stimuli has been examined. Physical immobilization of rats and forced swimming caused large increases in the secretion of the horm...

journal_title：Neuroendocrinology

authors： Lang RE,Heil JW,Ganten D,Hermann K,Unger T,Rascher W

更新日期：1983-10-01 00:00:00

abstract：:Circadian rhythm of blood corticosterone in adrenalectomized rats with (AT rat) or without adrenal autotransplants was investigated. Blood samples were obtained individually at 4-hour intervals for a 24-hour period per week for 5-7 consecutive weeks by the tail tip incision method. Corticosterone responses of the auto...

journal_title：Neuroendocrinology

authors： Murakami N,Takahashi K

更新日期：1982-03-01 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

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：:The effect of in vivo corticosterone manipulation on binding sites for the excitatory neurotransmitter glutamate was determined using radioligand binding to rat brain cryostat sections and crude synaptic membranes. 3H-glutamate binding to regions of the dorsal hippocampal formation was significantly decreased in adren...

journal_title：Neuroendocrinology

authors： Halpain S,McEwen BS

更新日期：1988-09-01 00:00:00

abstract：:Histamine (HA) stimulates the release of the pro-opiomelanocortin (POMC)-derived peptides ACTH, beta-endorphin (beta-END), beta-lipotropin and alpha-melanocyte-stimulating hormone, and HA is involved in the mediation of the stress-induced release of these peptides. The effect of HA is indirect and may involve the hypo...

journal_title：Neuroendocrinology

authors： Kjaer A,Knigge U,Bach FW,Warberg J

更新日期：1992-09-01 00:00:00

abstract：:This study was carried out to clarify the central effects of neuropeptide Y (NPY) on gonadotropin and prolactin (PRL) release in the male rat and to evaluate the hypothesis that it may play a role in negative feedback regulation of gonadotropin secretion in the male. NPY (4 micrograms in 2 microliters 0.9% NaCl) or an...

journal_title：Neuroendocrinology

authors： Reznikov AG,McCann SM

更新日期：1993-06-01 00:00:00

abstract：:We report the development of a radioimmunoassay for prepro-TRH(160-169) (PS4), a thyrotropin-releasing hormone (TRH) enhancing peptide, and its use in characterizing the effect of electroconvulsive seizures on the levels of this peptide in various brain regions of male Wistar rats. We found that electroconvulsive seiz...

journal_title：Neuroendocrinology

authors： Pekary AE,Sattin A,Lloyd RL

更新日期：1997-05-01 00:00:00

abstract：:Anterior pituitaries from female Sprague-Dawley rats (160-200 g b.w) bearing electrolytic lesions of the median eminence were qualitatively and quantitatively investigated by electron microscopy and the findings compared with those from intact animals or sham-operated controls. This study was performed in basal condit...

journal_title：Neuroendocrinology

authors： Rossi GL,Probst D,Panerai AE,Cocchi D,Locatelli V,Müller EE

更新日期：1979-01-01 00:00:00

abstract：:We have used excitatory amino acids as tools to elucidate changes in hypothalamic function associated with lactation, focusing on the regulation of luteinizing hormone (LH) and prolactin secretion. In these studies, we have compared the responsiveness to NMA (N-methyl-D,L-aspartate), an agonist for the N-methyl-D-aspa...

journal_title：Neuroendocrinology

authors： Abbud R,Smith MS

更新日期：1993-10-01 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：CONTEXT:Early pubertal luteinizing hormone (LH), and by inference gonadotropin-releasing hormone (GnRH), pulse secretion is marked by high nocturnal but low daytime frequency; however, the underlying mechanisms remain unclear. Plasma concentrations of progesterone, the major regulator of GnRH frequency in women, increa...

journal_title：Neuroendocrinology

authors： Collins JS,Marshall JC,McCartney CR

更新日期：2012-01-01 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：:In all vertebrates, the regulations of growth and energy balance are complex phenomena which involve elaborate interactions between the brain and peripheral signals. Most vertebrates adopt and maintain a life style after birth, but lower vertebrates may have complex life histories involving metamorphoses, migrations a...

journal_title：Neuroendocrinology

authors： Rousseau K,Dufour S

更新日期：2007-01-01 00:00:00

abstract：:The parenchymal cells of the pars intermedia (PI) and corticotrophs of the pars distalis (PD) synthesize pro-opiomelanocortin (POMC), which, through posttranslational processing, gives rise to a group of structurally related peptides, including MSHs, ACTH, CLIP, LPHs and endorphins. We investigated the control of rele...

journal_title：Neuroendocrinology

authors： Kraicer J,Gajewski TC,Moor BC

更新日期：1985-11-01 00:00:00

abstract：:The ability of neuropeptides to act as precursors for smaller, biologically active fragments is discussed in terms of their biotransformation. This process may involve cleavage of the parent peptide by peptidase enzymes to produce shorter polypeptides with defined biological activity, though other enzymic processes su...

journal_title：Neuroendocrinology

authors： Griffths EC,McDermott JR

更新日期：1984-12-01 00:00:00

abstract：OBJECTIVE:Differences in the cardiovascular and hypothalamic-pituitary-adrenal (HPA) axis functions at high altitudes (HAs) between visitors to and natives of HA were examined. METHODS:The cardiovascular functions and peripheral oxygen saturation (SPO2) were monitored, and the cortisol awakening response (CAR) and nig...

journal_title：Neuroendocrinology

authors： Park JY,Hwang TK,Park HK,Ahn RS

更新日期：2014-01-01 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：:Studies were conducted to determine if the hypothermic effects of barbiturates were responsible for their ability to suppress luteinizing hormone (LH) secretion in rats following ovariectomy or treatment with gonadal steroids. In both ovariectomized rats and rats treated with estradiol and progesterone, pentobarbital ...

journal_title：Neuroendocrinology

authors： Simpkins JW,Katovich MJ

更新日期：1987-09-01 00:00:00

abstract：:Estrogens are crucial determinants in the regulation of anterior pituitary function and maintenance of tissue homeostasis. Estrogen actions in this gland are exerted through both classical and non-classical mechanisms of action. This review summarizes the expression of classical α- and β-estrogen receptors and variant...

journal_title：Neuroendocrinology

authors： Zárate S,Seilicovich A

更新日期：2010-01-01 00:00:00

abstract：:Neuronal nitric oxide synthase, e.g. NADPH diaphorase (NADPH-d), catalyzes formation of the free radical, nitric oxide (NO), and occurs within brain structures that have functional significance for energy fuel homeostasis. The following studies examined whether populations of NADPH-d-positive neurons in the hypothalam...

journal_title：Neuroendocrinology

authors： Briski KP,Sylvester PW

更新日期：1999-03-01 00:00:00

abstract：:The following fragments of LHRH were administered intraventricularly and tested for their ability to enhance sexual receptivity in ovariectomized, estrogen-primed female rats: LHRH1-6 NH2, Ac-LHRH5-10, des-Tyr5-LHRH and des-Gly10-LHRH. LHRH1-6 NH2 had no effect on sexual behavior compared to saline-infused controls. A...

journal_title：Neuroendocrinology

authors： Dudley CA,Vale W,Rivier J,Moss RL

更新日期：1983-06-01 00:00:00

abstract：:The injection of purified alpha-bungarotoxin (alpha-BTX), an antagonist of the muscle nicotinic cholinergic receptors, into the third ventricle (3rd V) of ovariectomized rats decreased the frequency of pulses of luteinizing hormone (LH) but had no significant effect on the amplitude or nadir of LH secretion. Approxima...

journal_title：Neuroendocrinology

authors： Kalash J,Romita V,Billiar RB

更新日期：1989-05-01 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：:The push-pull perfusion technique, in conjunction with specific radioimmunoassays, was used to monitor the release of both arginine vasopressin (AVP) and oxytocin (OXT) within distinct limbic brain areas of conscious female rats. In pregnant rats near term, the release of AVP was greater than that of virgin rats in bo...

journal_title：Neuroendocrinology

authors： Landgraf R,Neumann I,Pittman QJ

更新日期：1991-10-01 00:00:00

abstract：:Dehydration is a classic homeostatic stressor in rats that leads to a series of endocrine responses including stimulation of the hypothalamo-pituitary-adrenal (HPA) axis. During the last decade, it has been well established that perinatal food restriction is associated with the onset of diseases in adults. Our previou...

journal_title：Neuroendocrinology

authors： Sebaai N,Lesage J,Breton C,Vieau D,Deloof S

更新日期：2004-01-01 00:00:00

abstract：:The present study investigated the effects of short-term exposure to constant light, initiated at the time of ovariectomy, on the ability of estradiol (E2) treatment alone or in conjunction with progesterone (P) to induce afternoon surges of LH and prolactin (PRL). Adult Fischer 344 rats, which had been ovariectomized...

journal_title：Neuroendocrinology

authors： Sterner MR,Cohen IR

更新日期：1995-09-01 00:00:00

abstract：:Electrical stimulation in the subfornical organ (SFO) alters the excitability of antidromically identified paraventricular nucleus neurons. Extracellular recordings demonstrate that the dominant effect of single stimuli delivered to the SFO on neurohypophyseal oxytocin and vasopressin containing neurons is an increase...

journal_title：Neuroendocrinology

authors： Ferguson AV,Day TA,Renaud LP

更新日期：1984-11-01 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：:The present study was designed to investigate whether the vasoactive intestinal peptide (VIP) concentration in hypothalamic nuclei, dorsal raphe nucleus (DR) and pituitary lobes of lactating rats changes in physiological situations when prolactin (PRL) secretion is stimulated (suckling) or inhibited (pup separation). ...

journal_title：Neuroendocrinology

authors： Chiocchio SR,de las Nieves Parisi M,Vitale ML,Tramezzani JH

更新日期：1991-07-01 00:00:00