Endotoxin inhibits the reproductive neuroendocrine axis while stimulating adrenal steroids: a simultaneous view from hypophyseal portal and peripheral blood.

abstract：:Aged (16-month-old) female rats (n = 8/treatment) were injected for 12 days with GH (100 micrograms/100 g x day), PTH (8 micrograms/100 g x day), GH plus PTH, or vehicle (V) in an experiment designed to determine the effects of these hormones on intestinal mineral absorption in senescent rats. PTH and GH increased fra...

journal_title：Endocrinology

authors： Fleet JC,Bruns ME,Hock JM,Wood RJ

更新日期：1994-04-01 00:00:00

abstract：:Decidualization, the process by which fibroblastic human endometrial stromal cells (HESC) differentiate into secretory decidual cells, is a critical event during the establishment of pregnancy. It is dependent on the steroid hormone progesterone acting through the nuclear progesterone receptor (PR). Previously, we ide...

journal_title：Endocrinology

authors： Neff AM,Yu J,Taylor RN,Bagchi IC,Bagchi MK

更新日期：2020-01-01 00:00:00

abstract：:An ovarian thecal/interstitial cell preparation was obtained by enzymatic digestion of immature rat ovaries depleted of granulosa cells. A component in thecal/interstitial cell-conditioned medium inhibited specific binding of [125I]iodo-epidermal growth factor ([125I]EGF) to its cell surface receptor, as determined wi...

journal_title：Endocrinology

authors： Skinner MK,Lobb D,Dorrington JH

更新日期：1987-11-01 00:00:00

abstract：:The mechanisms underlying the glucose dependence of arginine vasopressin (AVP)-stimulated insulin secretion were examined in a hamster insulin-secreting cell line (HIT cells). At 1.67 mM glucose, 100 nM AVP stimulated biphasic changes in free cytosolic Ca2+ ([Ca2+]i) and insulin secretion. The initial spike of [Ca2+]i...

journal_title：Endocrinology

authors： Lu M,Soltoff SP,Yaney GC,Boyd AE 3rd

更新日期：1993-05-01 00:00:00

abstract：:Binding of PTH to purified canine renal cortical membranes was investigated using biologically active radioiodinated bovine PTH-(1-84) [bPTH-(1-84)] as radioligand. PTH-(1-84) is thought to be the major circulating form of bioactive PTH, but oxidative inactivation upon iodination has prevented its use as a radioligand...

journal_title：Endocrinology

authors： Rizzoli RE,Murray TM,Marx SJ,Aurbach GD

更新日期：1983-04-01 00:00:00

abstract：:To explore the role of transforming growth factor-beta (TGF beta) isoforms and other growth-related genes during prostate morphogenesis in the mouse, we examined mRNA levels in fetal day 17 urogenital sinus, mesenchyme (UGM), and epithelium (UGE) as well as in the ventral, dorsal, and anterior lobes of the adult prost...

journal_title：Endocrinology

authors： Timme TL,Truong LD,Merz VW,Krebs T,Kadmon D,Flanders KC,Park SH,Thompson TC

更新日期：1994-03-01 00:00:00

abstract：:Glucose stimulation of pancreatic beta-cells triggers electrical activity (slow waves of membrane potential with superimposed spikes) that is best monitored with intracellular microelectrodes. Closure of ATP-sensitive K+ channels underlies the depolarization to the threshold potential and participates in the increase ...

journal_title：Endocrinology

authors： Henquin JC

更新日期：1998-03-01 00:00:00

abstract：:The calcium-dependent class of cell adhesion molecules known as cadherins mediate homotypic cell interactions in most epithelia. We have now investigated the expression and distribution of cadherins and cadherin-associated molecules in the developing and maturing rat testis. E-Cadherin was not detected in the seminife...

journal_title：Endocrinology

authors： Byers SW,Sujarit S,Jegou B,Butz S,Hoschutzky H,Herrenknecht K,MacCalman C,Blaschuk OW

更新日期：1994-02-01 00:00:00

abstract：:The purpose of this experiment was to determine whether surgical stress on the morning of proestrus would elicit an early release of gonadotropin from the pituitary. Animals exhibiting 5-day estrous cycles underwent bilateral sham-ovariectomy under ether anesthesia at 0800 h of proestrus. These animals had high levels...

journal_title：Endocrinology

authors： Nequin LG,Alvarez JA,Campbell CS

更新日期：1975-09-01 00:00:00

abstract：:As4.1 cells are derived from a renin-expressing kidney tumor induced by tissue-specific oncogene-mediated tumorigenesis in transgenic mice. These cells express high levels of renin messenger RNA (mRNA) and synthesize prorenin and renin; they were therefore used as a model to further investigate the molecular biology o...

journal_title：Endocrinology

authors： Thompson HA,Burson JM,Lang JA,Gross KW,Sigmund CD

更新日期：1995-07-01 00:00:00

abstract：:Female Chinese hamsters (n = 10) were immunized with Chinese hamster ovary (CHO) cells that expressed the human TSH receptor (TSHR) to generate a model of Graves' disease. TSHR-autoantibodies (TSHR-Ab) were determined by CHO-TSHR. Two hamsters with stimulating TSHR-Ab showed thyrocyte hypertrophy associated with a foc...

journal_title：Endocrinology

authors： Ando T,Imaizumi M,Graves P,Unger P,Davies TF

更新日期：2003-02-01 00:00:00

abstract：:Poor growth before birth is associated with impaired insulin sensitivity later in life, increasing the risk of type 2 diabetes. The tissue sites at which insulin resistance first develops after intrauterine growth restriction (IUGR), and its molecular basis, are unclear. We have therefore characterized the effects of ...

journal_title：Endocrinology

authors： De Blasio MJ,Gatford KL,Harland ML,Robinson JS,Owens JA

更新日期：2012-05-01 00:00:00

abstract：UNLABELLED:The long-acting glucagon-like peptide-1 receptor (GLP-1R) agonists, exendin-4 and liraglutide, suppress food intake and body weight. The mediating site(s) of action for the anorectic effects produced by peripheral administration of these GLP-1R agonists are not known. Experiments addressed whether food intak...

journal_title：Endocrinology

authors： Kanoski SE,Fortin SM,Arnold M,Grill HJ,Hayes MR

更新日期：2011-08-01 00:00:00

abstract：:Twelve weeks of high-fat diet feeding causes ghrelin resistance in arcuate neuropeptide Y (NPY)/agouti-related protein (AgRP) neurons. In the current study, we investigated whether diet-induced weight loss could restore NPY/AgRP neuronal responsiveness to ghrelin and whether ghrelin mediates rebound weight gain after ...

journal_title：Endocrinology

authors： Briggs DI,Lockie SH,Wu Q,Lemus MB,Stark R,Andrews ZB

更新日期：2013-02-01 00:00:00

abstract：:Early postnatal hyperalimentation has long-term implications for obesity and developing renal disease. Suppressor of cytokine signaling (SOCS) 3 inhibits phosphorylation of signal transducer and activator of transcription (STAT) 3 and ERK1/2 and thereby plays a pivotal role in mediating leptin resistance. In addition,...

journal_title：Endocrinology

authors： Alcazar MA,Boehler E,Rother E,Amann K,Vohlen C,von Hörsten S,Plank C,Dötsch J

更新日期：2012-03-01 00:00:00

abstract：:Renal prostaglandin E2 (PGE2) synthesis is enhanced by exogenous vasopressin (AVP). To determine whether the pressor or the antidiuretic activities of AVP are related to its effect on PGE2 synthesis, AVP and the nonpressor analog, 1-deamino-8-D-arginine vasopressin (dD'AVP), were administered to the isolated perfused ...

journal_title：Endocrinology

authors： Zipser RD,Myers SI,Needleman P

更新日期：1981-02-01 00:00:00

abstract：:The initiation of mammalian puberty requires an increase in pulsatile release of GnRH from the hypothalamus. This increase is brought about by coordinated changes in transsynaptic and glial-neuronal communication. As the neuronal and glial excitatory inputs to the GnRH neuronal network increase, the transsynaptic inhi...

journal_title：Endocrinology

authors： Ojeda SR,Lomniczi A,Mastronardi C,Heger S,Roth C,Parent AS,Matagne V,Mungenast AE

更新日期：2006-03-01 00:00:00

abstract：:A series of rat and mouse monoclonal antibodies to the human progesterone receptor (PR) has recently been produced. These antibodies were used for the immunocytochemical identification of PR in several mammalian species including humans. The specificity of the monoclonal antibodies for PR was confirmed by using compet...

journal_title：Endocrinology

authors： Press MF,Greene GL

更新日期：1988-03-01 00:00:00

abstract：:Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine that plays a pivotal role in several immunoinflammatory and autoimmune diseases. In this study we examined the role of MIF in the development of immunoinflammatory diabetes induced in susceptible strains of mice by multiple low doses of strepto...

journal_title：Endocrinology

authors： Cvetkovic I,Al-Abed Y,Miljkovic D,Maksimovic-Ivanic D,Roth J,Bacher M,Lan HY,Nicoletti F,Stosic-Grujicic S

更新日期：2005-07-01 00:00:00

abstract：:Prostaglandin E2 (PGE2) is specifically and reversibly bound by particulate fractions from adrenals from fetal calves and lambs. These binding sites appear to be located primarily in the adrenal medulla and have properties very similar to those which we have detected in adult human, bovine, and ovine adrenal medulla. ...

journal_title：Endocrinology

authors： Karaplis AC,Powell WS

更新日期：1981-12-01 00:00:00

abstract：:GnRH neurons are the central regulators of fertility, and their activity is modulated by steroid feedback. In women with hyperandrogenemic infertility and in animal models of these disorders, elevated androgen levels interfere with progesterone (P) negative feedback. Our previous work showed that steroids altered the ...

journal_title：Endocrinology

authors： Pielecka J,Quaynor SD,Moenter SM

更新日期：2006-03-01 00:00:00

abstract：:The effects of pentobarbital (Pnt) treatment on the progesterone (P)-induced afternoon increase in the medial basal hypothalamic (MBH) LHRH and serum LH and FSH levels in ovariectomized estradiol benzoate-primed rats were studied. Pnt injection before P blocked the afternoon rise in serum gonadotropins but failed to a...

journal_title：Endocrinology

authors： Kalra SP,Simpkins JW,Kalra PS

更新日期：1981-04-01 00:00:00

abstract：:To determine the relationship between the concentrations of serum T3 and hepatic nuclear T3 receptor in a reversible nonthyroidal disease, we studied these parameters in rats with streptozotocin-induced diabetes mellitus, control rats, and rats that were weight-matched to the diabetic rats by food restriction. Results...

journal_title：Endocrinology

authors： Las MS,Surks MI

更新日期：1981-10-01 00:00:00

abstract：:The experimental induction of puberty by GnRH administration to prepubertal lambs increases serum bioactive FSH (B-FSH) as measured in the rat Sertoli cell aromatase induction bioassay. Serum immunoreactive FSH (I-FSH) levels are unchanged. The increase in serum B-FSH is associated with an increase in the proportion o...

journal_title：Endocrinology

authors： Hassing JM,Kletter GB,I'Anson H,Wood RI,Beitins IZ,Foster DL,Padmanabhan V

更新日期：1993-04-01 00:00:00

abstract：:Recently, we have reported that retinoic acid (RA), similarly to retinol acetate, is able to reinitiate spermatogenesis in vitamin A-deficient rats. Here, we investigated the expression of RA receptors RAR alpha, RAR beta, RAR gamma, and retinoid X receptor RXR alpha by Northern blot analysis of poly(A)+ RNA of testes...

journal_title：Endocrinology

authors： van Pelt AM,van den Brink CE,de Rooij DG,van der Saag PT

更新日期：1992-07-01 00:00:00

abstract：:Cathepsin-D has been previously reported to cleave intact PTH into PTH-(1-34) and -(35-84) in membranous fractions of rat and bovine kidney. Whether PTH degradation occurs by intact kidney cells, however, has not been examined in detail. We have, therefore, examined this possibility using an opossum kidney (OK) cell l...

journal_title：Endocrinology

authors： Yamaguchi T,Fukase M,Nishikawa M,Fujimi T,Fujita T

更新日期：1988-12-01 00:00:00

abstract：:The microenvironment of placental mesenchymal stem cells (PMSCs) is dynamic throughout gestation and determines changes in cell fate. In vivo, PMSCs initially develop in low-oxygen tension and low IGF-I concentrations, and both increase gradually with gestation. The impact of varying concentrations of IGF-I and changi...

journal_title：Endocrinology

authors： Youssef A,Iosef C,Han VK

更新日期：2014-04-01 00:00:00

abstract：:Previously, a human CYP3A4-transgenic (Tg-CYP3A4) mouse line was reported to exhibit enhanced metabolism of midazolam by cytochrome P450 3A4 (CYP3A4) expressed in small intestine. Here we show that expression of CYP3A4 and murine cyp3a and cyp2b was both age and sex dependent. CYP3A4 was expressed in the livers of mal...

journal_title：Endocrinology

authors： Yu AM,Fukamachi K,Krausz KW,Cheung C,Gonzalez FJ

更新日期：2005-07-01 00:00:00

abstract：:The effect of [D-Trp6]LHRH, a potent agonist of LHRH, on pituitary-testicular responses was investigated in male rhesus monkeys. Acute administration of 5, 25, or 500 micrograms [D-Trp6]LHRH produced dose-related increases in serum testosterone and bioassayable LH levels. The administration of 500 micrograms [D-Trp6]L...

journal_title：Endocrinology

authors： Sundaram K,Connell KG,Bardin CW,Samojlik E,Schally AV

更新日期：1982-04-01 00:00:00

abstract：:Desensitization and internalization of G protein-coupled receptors can be mediated by phosphorylation within the C-terminal tail, facilitating beta-arrestin binding and targeting the receptor for internalization. Type II GnRH receptors (GnRH-Rs) show such regulation, but type I GnRH-Rs lack C-tails and are not rapidly...

journal_title：Endocrinology

authors： Caunt CJ,Hislop JN,Kelly E,Matharu AL,Green LD,Sedgley KR,Finch AR,McArdle CA

更新日期：2004-08-01 00:00:00