Inhibition of hypothalamic thyrotropin-releasing hormone messenger ribonucleic acid during food deprivation.

abstract：:Pancreatic beta-cells and HIT-T15 cells exhibit oscillations of cytosolic calcium ([Ca2+]i) that are dependent on glucose metabolism and appear to trigger pulsatile insulin secretion. Significantly, differences in the pattern of this [Ca2+]i oscillatory activity may have important implications for our understanding of...

journal_title：Endocrinology

authors： Leech CA,Holz GG 4th,Habener JF

更新日期：1994-07-01 00:00:00

abstract：:The two peptides pancreastatin and diazepam binding inhibitor (DBI) were recently demonstrated in pancreatic islets and were shown to inhibit insulin secretion in short term experiments. In the present study we investigated long term effects of pancreastatin and DBI on the DNA synthesis, polyamine content, and insulin...

journal_title：Endocrinology

authors： Sjöholm A,Funakoshi A,Efendić S,Ostenson CG,Hellerström C

更新日期：1991-06-01 00:00:00

abstract：:Previous studies have suggested that the ovary produces a factor that maintains the pituitary in a state of low LHRH responsiveness that must be overcome by the self-priming action of LHRH. To determine the role of inhibin in maintaining low LHRH responsiveness in pituitaries of diestrous female rats, endogenous inhib...

journal_title：Endocrinology

authors： Culler MD

更新日期：1992-03-01 00:00:00

abstract：:We recently reported that fetal sheep corticotrophs (ACTH-producing cells) at 108 +/- 5 d (days) of gestation are relatively more responsive to CRH than to AVP, whereas those at 139 +/- 0 d (term = 145 d) and in the adult are more responsive to AVP. To further characterize these developmental changes, we used immunocy...

journal_title：Endocrinology

authors： Perez FM,Schwartz J,Rose JC

更新日期：1997-03-01 00:00:00

abstract：:Homogenates from male ddy mouse sublingual glands were incubated with 100 nM [125I]rT3 in the presence of 2 mM dithiothreitol (DTT). Metabolites were analyzed by HPLC or Dowex-50 minicolumn assay. 3,3'-Diiodothyronine and I- were the only appreciable products. Iodide release from rT3 was compatible with the enzymatic ...

journal_title：Endocrinology

authors： Tanaka K,Imura H

更新日期：1993-03-01 00:00:00

abstract：:Female Wistar-Furth rats were implanted sc with GH3 rat pituitary tumor cells. Tumors were palpable by 4 weeks, and animals were killed periodically from 5-9 weeks. Tumor-bearing rats (n = 10) were heavier than their respective controls, reaching a weight of 372 +/- 3 by 9 weeks vs. 195 +/- 5 g in controls (mean +/- S...

journal_title：Endocrinology

authors： Yamashita S,Slanina S,Kado H,Melmed S

更新日期：1986-03-01 00:00:00

abstract：:In the course of previous studies using continuous monitoring of the electrophysiological correlates of GnRH pulse generator activity, characterized by episodic increases in hypothalamic multiunit electrical activity (MUA volley), it was noticed that the nocturnal slowing of pulse generator frequency was an acute phen...

journal_title：Endocrinology

authors： O'Byrne KT,Thalabard JC,Chiappini SE,Chen MD,Hotchkiss J,Knobil E

更新日期：1993-10-01 00:00:00

abstract：:To examine the role of androgen receptor (AR) in Sertoli cells (SC), we used a SC-specific AR knockout (S-AR-/y) mouse to further evaluate the chronological changes of seminiferous tubules and the molecular mechanisms of SC androgen/AR signals on spermatogenesis. Testes morphology began changing as early as postnatal ...

journal_title：Endocrinology

authors： Wang RS,Yeh S,Chen LM,Lin HY,Zhang C,Ni J,Wu CC,di Sant'Agnese PA,deMesy-Bentley KL,Tzeng CR,Chang C

更新日期：2006-12-01 00:00:00

abstract：:The effects of K+ depletion and ouabain (0.1, 0.5, and 1 mM) on glucagon and insulin release from the in vitro perfused rat pancreas were studied in the absence or presence of arginine (10 mM). In the absence of arginine, K+ depletion resulted in an inhibition of glucagon release, both at a low (2.8 mM) and a higher (...

journal_title：Endocrinology

authors： Leclercq-Meyer V,Marchand J,Malaisse WJ

更新日期：1983-07-01 00:00:00

abstract：:Recent evidence suggests that inflammation may be a common underlying cause of many obesity-associated conditions. To test whether obesity changes the response to inflammation, we investigated its effects on the acute phase of the inflammatory response to an endogenous pathogen, lipopolysaccharide (LPS). Diet-induced ...

journal_title：Endocrinology

authors： Pohl J,Woodside B,Luheshi GN

更新日期：2009-11-01 00:00:00

abstract：:Open pig thyroid follicles in which the apical surface of the follicle cells is in direct contact with the incubation medium were used to study the effect of stimulated exocytosis and stimulated H2O2 generation on the iodination of protein in the incubation medium. In previous studies on this system of follicles we ha...

journal_title：Endocrinology

authors： Björkman U,Ekholm R

更新日期：1988-02-01 00:00:00

abstract：:The steroid hormone 1 alpha,25-dihydroxyvitamin D3 [1,25-(OH)2D3] can elicit biological responses via a nongenomic pathway that involves rapid opening of the plasma membrane Ca2+ channels. There is also evidence that 1,25-(OH)2D3 influences insulin secretion in the pancreatic beta-cell, which is primarily mediated by ...

journal_title：Endocrinology

authors： Sergeev IN,Rhoten WB

更新日期：1995-07-01 00:00:00

abstract：:This study was designed to investigate the role of dopaminergic mechanisms in the control of aldosterone secretion. Six rhesus monkeys received metoclopramide (1.25 mg, iv), with 5% dextrose (vehicle) or with dopamine (4 micrograms/kg . min) infusions begun 60 min before the administration of the dopamine antagonists....

journal_title：Endocrinology

authors： Sowers JR,Berg G,Martin VS,Mayes DM

更新日期：1982-04-01 00:00:00

abstract：:We have previously reported that neurotensin (NT) is released from the small intestine and elevated in the hepatic-portal circulation in response to the perfusion of the small intestine with a micellar solution of oleic acid. In order to determine the minimum acyl chain length and whether the presence of a carboxylic ...

journal_title：Endocrinology

authors： Ferris CF,Armstrong MJ,George JK,Stevens CA,Carraway RE,Leeman SE

更新日期：1985-03-01 00:00:00

abstract：:Several studies have shown that insulin-like growth factor-binding proteins (IGF-BPs) modify IGF activity. To investigate their role in regulating growth, the number and size of IGF-BPs in porcine serum and the role of nutritional and endocrine factors in controlling their relative abundance were determined. IGF-BPs w...

journal_title：Endocrinology

authors： McCusker RH,Campion DR,Jones WK,Clemmons DR

更新日期：1989-07-01 00:00:00

abstract：:Aggression enables individuals to obtain and retain limited resources. Studies of the neuroendocrine regulation of aggression have focused on territorial and reproductive contexts. By contrast, little is understood concerning the neuroendocrine regulation of aggression over other resources, such as food. Here, we deve...

journal_title：Endocrinology

authors： Fokidis HB,Prior NH,Soma KK

更新日期：2013-11-01 00:00:00

abstract：:Arterial pressure (AP), heart rate (HR), and cardiovascular diseases, including ischemic heart attack and cerebrovascular accident, show diurnal variation. Evidence that circadian-related genes contribute to cardiovascular control has been accumulated. In this study, we measured the AP and HR of Clock mutant mice on t...

journal_title：Endocrinology

authors： Sei H,Oishi K,Chikahisa S,Kitaoka K,Takeda E,Ishida N

更新日期：2008-07-01 00:00:00

abstract：:Treatment of inflammation is often accomplished through the use of glucocorticoids. However, their use is limited by side effects. We have examined the activity of a novel glucocorticoid receptor ligand that binds the receptor efficiently and strongly represses inflammatory gene expression. This compound has potent an...

journal_title：Endocrinology

authors： López FJ,Ardecky RJ,Bebo B,Benbatoul K,De Grandpre L,Liu S,Leibowitz MD,Marschke K,Rosen J,Rungta D,Viveros HO,Yen WC,Zhi L,Negro-Vilar A,Miner JN

更新日期：2008-05-01 00:00:00

abstract：:17 beta-Estradiol (E2; 100 micrograms/kg X day) was infused iv for 6 days into three chronically catheterized ovine fetuses beginning at 105-106 days of gestation (term, 147 days) and into four younger fetuses for 3 days commencing at 87-92 days. Control studies were performed on three fetuses at each age. At 90 days,...

journal_title：Endocrinology

authors： Gluckman PD,Marti-Henneberg C,Kaplan SL,Grumbach MM

更新日期：1983-05-01 00:00:00

abstract：:At micromolar (pharmacological) concentrations, the action of tamoxifen on the proliferation of estrogen-dependent cells can be mediated not only by the estrogen receptor (ER), but also by other target molecules, such as protein kinase-C (PKC), which are easily inhibited by antiestrogens in cell-free experiments. By d...

journal_title：Endocrinology

authors： Astruc ME,Chabret C,Bali P,Gagne D,Pons M

更新日期：1995-03-01 00:00:00

abstract：:The effects of L-arginine and its derivatives NG-methyl-L-arginine (Meth-arg) and NG-nitro-L-arginine (Nit-arg) on the insulin release and glucose oxidation of isolated rat islets were investigated to evaluate possible influences of nitric oxide. Also, the insulin release and flow distribution within the perfused rat ...

journal_title：Endocrinology

authors： Jansson L,Sandler S

更新日期：1991-06-01 00:00:00

abstract：:L-Asparaginase (ASNase), a drug widely used in the treatment of acute lymphoblastic leukemia, has been reported to decrease serum T4-binding globulin (TBG) levels, while results of serum albumin determinations were conflicting. This effect in vivo has been attributed to depressed liver protein synthesis, but this hypo...

journal_title：Endocrinology

authors： Bartalena L,Martino E,Antonelli A,Pacchiarotti A,Robbins J,Pinchera A

更新日期：1986-09-01 00:00:00

abstract：:It has been reported that the endocannabinoid anandamide (AEA) exerts an adverse effect on human sperm motility, which has been ascribed to inhibition of mitochondrial activity. This seems to be at variance with evidence suggesting a major role of glycolysis in supplying ATP for sperm motility; furthermore, the role o...

journal_title：Endocrinology

authors： Barbonetti A,Vassallo MR,Fortunato D,Francavilla S,Maccarrone M,Francavilla F

更新日期：2010-12-01 00:00:00

abstract：:Although the interactions between sex steroids and GnRH have been extensively studied, little is known about the mechanism of estradiol (E2) effects on GnRH secretion. In the present study, we used retrochiasmatic hypothalamic explants of 50-d-old male rats, and we observed that E2 significantly increased the glutamat...

journal_title：Endocrinology

authors： Matagne V,Lebrethon MC,Gérard A,Bourguignon JP

更新日期：2005-05-01 00:00:00

abstract：:Activins stimulate FSH synthesis and secretion by pituitary gonadotrope cells. Activin A induction of porcine and murine FSHβ (Fshb) gene transcription in immortalized gonadotropes is dependent on homolog of Drosophila mothers against decapentaplegic (SMAD) proteins as well as the forkhead transcription factor L2 (FOX...

journal_title：Endocrinology

authors： Lamba P,Wang Y,Tran S,Ouspenskaia T,Libasci V,Hébert TE,Miller GJ,Bernard DJ

更新日期：2010-11-01 00:00:00

abstract：:Calcitonin is present in both the hypothalamus and pituitary of the rat, and normal rat anterior pituitary cells express calcitonin receptors. Calcitonin has been reported to inhibit or to stimulate PRL release from rat anterior pituitary cells. We have investigated the effects of salmon calcitonin on basal and stimul...

journal_title：Endocrinology

authors： Judd AM,Kubota T,Kuan SI,Jarvis WD,Spangelo BL,Macleod RM

更新日期：1990-07-01 00:00:00

abstract：:In animal models of inflammation, the pregnancy hormone relaxin was shown to reduce the recruitment of leukocytes, especially neutrophils, in inflamed tissues. The current study was designed to clarify whether relaxin could inhibit activation of isolated human neutrophils and, if so, whether the nitric oxide (NO) bios...

journal_title：Endocrinology

authors： Masini E,Nistri S,Vannacci A,Bani Sacchi T,Novelli A,Bani D

更新日期：2004-03-01 00:00:00

abstract：:The objective of this study was to assess estrogen-dependent cellular mechanisms that could contribute to the acid pH of the vaginal lumen. Cultures of normal human cervical-vaginal epithelial (hECE) cells and endocervical cells were grown on filters, and acidification of the extracellular solutions on the luminal (L-...

journal_title：Endocrinology

authors： Gorodeski GI,Hopfer U,Liu CC,Margles E

更新日期：2005-02-01 00:00:00

abstract：:Steady state levels of the mRNAs for alpha 1B, beta 1- and beta 2-adrenergic receptors (alpha 1BAR, beta 1AR, beta 2AR) were quantified by DNA excess solution hybridization assays in the heart, lungs, and liver of rats. Tissues for RNA extraction were obtained from euthyroid and thyroidectomized rats and from thyroide...

journal_title：Endocrinology

authors： Lazar-Wesley E,Hadcock JR,Malbon CC,Kunos G,Ishac EJ

更新日期：1991-08-01 00:00:00

abstract：:Reduced cellular immune responses and altered cytokine production by cells from mice exposed to thermal injury are minimized if dehydroepiandrosterone (DHEA) is administered after experimental burn injury in mice. An analysis of similar tests of immune function developed by mice given the antiglucocorticoid, 17 beta-h...

journal_title：Endocrinology

authors： Araneo B,Daynes R

更新日期：1995-02-01 00:00:00