Kisspeptin in the Hypothalamus of 2 Rat Models of Polycystic Ovary Syndrome.

abstract：:We have previously reported that the acute injection of interleukin-1 beta (IL-1 beta) into the brain ventricles of intact female rats promptly decreases LHRH release and inhibits gene expression of this peptide in the medial preoptic area (MPOA). The present studies were therefore designed to determine whether contin...

journal_title：Endocrinology

authors： Rivest S,Lee S,Attardi B,Rivier C

更新日期：1993-12-01 00:00:00

abstract：:In mammals, skeletal muscle mass is negatively regulated by a muscle-derived growth/differentiating factor named myostatin (MSTN) that belongs to the transforming growth factor-beta superfamily. Although putative MSTN homologs have been identified from several vertebrates, nonmammalian orthologs remained poorly define...

journal_title：Endocrinology

authors： Rodgers BD,Weber GM,Sullivan CV,Levine MA

更新日期：2001-04-01 00:00:00

abstract：:Glucocorticoid hormones are involved in functional differentiation of GH-producing somatotrophs. Glucocorticoid treatment prematurely induces GH expression in mammals and birds in a process requiring protein synthesis and Rat sarcoma (Ras) signaling. The objective of this study was to investigate mechanisms through wh...

journal_title：Endocrinology

authors： Ellestad LE,Puckett SA,Porter TE

更新日期：2015-03-01 00:00:00

abstract：:The brain has traditionally been considered to be a target site of peripheral steroid hormones. By contrast, new findings over the past decade have shown that the brain itself also has the capability of forming steroids de novo, the so-called neurosteroids. De novo neurosteroidogenesis in the brain from cholesterol is...

journal_title：Endocrinology

authors： Tsutsui K

更新日期：2008-06-01 00:00:00

abstract：:The effects of pineal indole compounds on the response of the neonatal rat anterior pituitary gland to LH-releasing hormone (LHRH) were studied in organ culture. After 24 h of culture under control conditions, pituitary glands from 5-day-old female rats were routinely incubated for an additional 24 h with the test com...

journal_title：Endocrinology

authors： Martin JE,Engel JN,Klein DC

更新日期：1977-03-01 00:00:00

abstract：:We have recently disclosed sustained episodes of LH release (minisurges) during the afternoons of the juvenile-peripubertal transition period in the female rat. To determine if these LH minisurges are gonad independent, i.e. develop in the absence of the ovaries, animals were ovariectomized when neonates, and the mode...

journal_title：Endocrinology

authors： Urbanski HF,Ojeda SR

更新日期：1986-03-01 00:00:00

abstract：:A central feature of glucocorticoid (GC)-induced osteoporosis is decreased bone formation, secondary to decreased numbers of functional osteoblasts. We find that ERK activity is essential for serum-induced osteoblast proliferation in vitro because inhibition of MAPK/ERK kinase activity by U0126 completely abolished bo...

journal_title：Endocrinology

authors： Engelbrecht Y,de Wet H,Horsch K,Langeveldt CR,Hough FS,Hulley PA

更新日期：2003-02-01 00:00:00

abstract：:To find out whether the hippocampus is involved in central nervous system-mediated glucoregulation, we injected saline, neostigmine, dopamine, norepinephrine, bombesin, beta-endorphin, somatostatin, and prostaglandin F2 alpha into the dorsal hippocampus in anesthetized fed rats. After injection of dopamine, norepineph...

journal_title：Endocrinology

authors： Uemura K,Iguchi A,Yatomi A,Miura H,Honmura A,Yanase M,Sakamoto N

更新日期：1989-05-01 00:00:00

abstract：:Although the neurohypophyseal hormone oxytocin (OT) is best know for its role in reproduction, OT also stimulates natriuresis at physiological plasma levels. This effect is mediated via specific renal OT receptors (OTRs). In the present study, we have characterized rat renal OTR gene transcripts and assessed their reg...

journal_title：Endocrinology

authors： Breton C,Neculcea J,Zingg HH

更新日期：1996-07-01 00:00:00

abstract：:The present studies demonstrate that the murine adrenocortical tumor cell line Y-1 releases a digoxin-like immunoreactive material into both serum-supplemented nutrient medium and minimal Krebs-Ringer bicarbonate medium. Release of pregnenolone into minimal medium from these cells was consistently inhibited by additio...

journal_title：Endocrinology

authors： Doris PA,Kilgore MW,Durham D,Alberts D,Stocco DM

更新日期：1989-11-01 00:00:00

abstract：:To investigate the physiological role of GRF and somatostatin (SRIF) in GH secretion in adult male rats, we prepared in vitro models using the perifusion system of cultured rat anterior pituitary cells exposed to various combinations of human GRF-(1-44)NH2 (hGRF) and SRIF. We studied the following three models on GRF ...

journal_title：Endocrinology

authors： Sato M,Takahara J,Fujioka Y,Niimi M,Irino S

更新日期：1988-10-01 00:00:00

abstract：:Proinflammatory cytokines have been shown to influence the expression and function of the glucocorticoid receptor (GR). Specifically, several studies have found that cytokines induce a decrease in GR function, as evidenced by reduced sensitivity to glucocorticoid effects on functional end points. To investigate the po...

journal_title：Endocrinology

authors： Pariante CM,Pearce BD,Pisell TL,Sanchez CI,Po C,Su C,Miller AH

更新日期：1999-09-01 00:00:00

abstract：:IL-1, secreted by human embryos and trophoblast cells, is important for successful implantation and pregnancy. We previously reported that IL-1beta induced IL-8 production in human endometrial stromal cells (ESCs) and that induction was regulated by substances implicated in implantation. In the present study using hum...

journal_title：Endocrinology

authors： Hirota Y,Osuga Y,Hasegawa A,Kodama A,Tajima T,Hamasaki K,Koga K,Yoshino O,Hirata T,Harada M,Takemura Y,Yano T,Tsutsumi O,Taketani Y

更新日期：2009-01-01 00:00:00

abstract：:We recently found that plasma membrane phosphatidylinositol 4,5-bisphosphate (PIP(2))-regulated filamentous actin (F-actin) polymerization was diminished in hyperinsulinemic cell culture models of insulin resistance. Here we delineated whether increased glucose flux through the hexosamine biosynthesis pathway (HBP) ca...

journal_title：Endocrinology

authors： Bhonagiri P,Pattar GR,Horvath EM,Habegger KM,McCarthy AM,Elmendorf JS

更新日期：2009-04-01 00:00:00

abstract：:Aldo-keto-reductase 1B7/mouse vas deferens protein (AKR1B7/MVDP) is expressed in rodent steroidogenic glands and in the mouse vas deferens. In steroidogenic organs, AKR1B7/MVDP scavenges isocaproaldehyde produced from the cholesterol side-chain cleavage reaction. Akr1b7/mvdp is responsive to ACTH in adrenals and to an...

journal_title：Endocrinology

authors： Martinez A,Val P,Sahut-Barnola I,Aigueperse C,Veyssière G,Lefrançois-Martinez AM

更新日期：2003-05-01 00:00:00

abstract：:Angiotensin II is a potent octapeptide vasoconstrictor and regulator of cardiovascular and electrolyte homeostasis. Angiotensinogen, the protein precursor of angiotensin II, is synthesized by the liver and many other organs of the adult rat. To determine whether angiotensin may be present in early fetal development we...

journal_title：Endocrinology

authors： Lee HU,Campbell DJ,Habener JF

更新日期：1987-10-01 00:00:00

abstract：:The transcription factor Stat3 is activated through tyrosine phosphorylation by many cytokines and is a fundamental mediator of their signals. In the mammary gland, Stat3 activity increases sharply shortly after weaning, and involution is delayed in mice, that contain a mutant Stat3 lacking 33 amino acids including th...

journal_title：Endocrinology

authors： Humphreys RC,Bierie B,Zhao L,Raz R,Levy D,Hennighausen L

更新日期：2002-09-01 00:00:00

abstract：:Oral ketoconazole has been demonstrated to lower plasma testosterone in man. Measurement of blood precursors of testosterone suggest that ketoconazole may have its effect inhibiting the 17,20-desmolase enzyme within the testis. To substantiate this, a series of in vitro experiments was conducted using the rat testis t...

journal_title：Endocrinology

authors： Sikka SC,Swerdloff RS,Rajfer J

更新日期：1985-05-01 00:00:00

abstract：:Androgens and estrogens play major roles in cell differentiation, cell growth, and peptide secretion in steroid target tissues. In addition to the binding of these hormones to their receptors, formation and metabolism are important in the action of steroids. Metabolism of the potent steroid hormones includes glucuroni...

journal_title：Endocrinology

authors： Turgeon D,Carrier JS,Lévesque E,Hum DW,Bélanger A

更新日期：2001-02-01 00:00:00

abstract：:Early postnatal exposures to sex steroids have been well recognized to modulate predisposition to diseases of adulthood. There is a complex interplay between timing, duration and dose of endocrine exposures through environmental or dietary sources that may alter the sensitivity of target tissues to the exogenous stimu...

journal_title：Endocrinology

authors： Jang H,Bhasin S,Guarneri T,Serra C,Schneider M,Lee MJ,Guo W,Fried SK,Pencina K,Jasuja R

更新日期：2015-10-01 00:00:00

abstract：:Adiponectin (ApN) is an adipokine whose expression and plasma levels are inversely related to obesity and insulin-resistant states. Chronic repercussions of ApN treatment or overexpression on adiposity and body weight are still controversial. Here, we generated a transgenic (Tg) mouse model allowing persistent and mod...

journal_title：Endocrinology

authors： Bauche IB,El Mkadem SA,Pottier AM,Senou M,Many MC,Rezsohazy R,Penicaud L,Maeda N,Funahashi T,Brichard SM

更新日期：2007-04-01 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：:The scaffolding protein, protein targeting to glycogen (PTG), orchestrates the signaling of several metabolic enzymes involved in glycogen synthesis. However, little is known concerning the regulation of PTG itself. In this study, we have cloned and characterized the mouse promoter of PTG. We identified multiple FoxA2...

journal_title：Endocrinology

authors： Cheng A,Zhang M,Crosson SM,Bao ZQ,Saltiel AR

更新日期：2006-07-01 00:00:00

abstract：:To determine in neonates the effects of protein restriction on growth, serum IGF-I, and IGF-I gene expression, we adapted a technique for rearing neonatal rats (days 6-18 of life) artificially by continuous infusion of milk through a gastrostomy. The artificially reared (AR) animals were given isocaloric diets contain...

journal_title：Endocrinology

authors： Moats-Staats BM,Brady JL Jr,Underwood LE,D'Ercole AJ

更新日期：1989-11-01 00:00:00

abstract：:The placenta is the primary source of estrogens and progesterone during pregnancy. Because pregnant diabetic women are reported to have lower serum estrogen and higher progesterone levels than nondiabetic pregnant women, and placental insulin-like growth factor II (IGF-II) production may be elevated during diabetic pr...

journal_title：Endocrinology

authors： Nestler JE

更新日期：1990-11-01 00:00:00

abstract：:The effects of insulin on lipoprotein lipase (LPL) messenger RNA (mRNA) were studied in mammary glands from virgin and late-pregnant rats. Virgin and pregnant rats (at 17 days of gestation) were subjected to a continuous infusion (35 ml/day) with 50% glucose for 72 h to produce a prolonged hyperinsulinemic-euglycemic ...

journal_title：Endocrinology

authors： Ramos P,Martín-Hidalgo A,Herrera E

更新日期：1999-03-01 00:00:00

abstract：:Embryonic poly(A)-binding protein (EPAB) is the predominant poly(A)-binding protein in Xenopus, mouse, and human oocytes and early embryos before zygotic genome activation. EPAB is required for translational activation of maternally stored mRNAs in the oocyte and Epab(-/-) female mice are infertile due to impaired ooc...

journal_title：Endocrinology

authors： Yang CR,Lowther KM,Lalioti MD,Seli E

更新日期：2016-01-01 00:00:00

abstract：:Inflammation can interfere with endometrial receptivity. We examined how interleukin 1β (IL-1β) affects expression of the uterine gap junction protein connexin 43 (Cx43), which is known to be critical for embryonic implantation. We used an in vitro model of human endometrial stromal cells (ESCs), Western blotting, and...

journal_title：Endocrinology

authors： Yu J,Berga SL,Zou W,Yook DG,Pan JC,Andrade AA,Zhao L,Sidell N,Bagchi IC,Bagchi MK,Taylor RN

更新日期：2017-12-01 00:00:00

abstract：:Breast cancer incidence increases in women receiving combined estrogen and progesterone therapy. Breast tumors show increased expression of the glucose transporter GLUT1. We determined the effect of these hormones on GLUT1-4 expression and deoxyglucose transport in ZR-75-1 breast cancer cells. Immunoblotting, immunocy...

journal_title：Endocrinology

authors： Medina RA,Meneses AM,Vera JC,Guzman C,Nualart F,Astuya A,García MA,Kato S,Carvajal A,Pinto M,Owen GI

更新日期：2003-10-01 00:00:00

abstract：:We investigated whether genetic selection for growth influences pituitary GH secretion in two strains of rats, LL (large) and SS (small). Animals were bled every 15 min for 6 h via an indwelling atrial Silastic catheter, and GH levels were determined by RIA. LL and SS males displayed a low frequency, high amplitude ep...

journal_title：Endocrinology

authors： O'Sullivan D,Millard WJ,Badger TM,Martin JB,Martin RJ

更新日期：1986-11-01 00:00:00