The aryl hydrocarbon receptor pathway and sexual differentiation of neuroendocrine functions.

abstract：:Hypothalamic enzymatic activities capable of degrading LHRH may play a physiological role in the neuroendocrine control of LHRH. There is increasing evidence, however, that these enzymes are not peptide specific. The present study in the ewe analyzed the possibility that the specificity of LHRH-degrading activity (LHR...

journal_title：Endocrinology

authors： Advis JP,Kuljis RO,Dey G

更新日期：1985-06-01 00:00:00

abstract：:In previous studies, we have shown that calcitonin gene-related peptide (CGRP) acutely inhibits 45Ca2+ uptake in osteoblastic UMR106 cells, and we have proposed that ATP-sensitive potassium (K(ATP)) channels are involved in mediating this action of CGRP. To directly test this proposed mechanism, we have now examined t...

journal_title：Endocrinology

authors： Kawase T,Burns DM

更新日期：1998-08-01 00:00:00

abstract：:In vivo and in vitro evidence indicates that FSH is a primary regulator of testicular inhibin production. However, recent reports suggest that LH may also promote inhibin secretion in vivo. To investigate whether LH regulates inhibin subunit messenger RNA (mRNA) expression as well, we examined the effects of hypophyse...

journal_title：Endocrinology

authors： Krummen LA,Morelos BS,Bhasin S

更新日期：1990-09-01 00:00:00

abstract：:Exposure to estrogen during the developmental period causes reproductive dysfunction in mammals, because the developing brain is highly sensitive to estrogens. In the present study, we report that long-term exposure to supraphysiological doses of estrogen during the neonatal critical period causes irreversible suppres...

journal_title：Endocrinology

authors： Minabe S,Ieda N,Watanabe Y,Inoue N,Uenoyama Y,Maeda KI,Tsukamura H

更新日期：2017-09-01 00:00:00

abstract：:As a metabolic sensor, the serine/threonine protein kinase AMP-activated protein kinase (AMPK) promotes the adaptation of cells to signals arising from nutrients, hormones, and growth factors. The ability of IGF-I to stimulate protein synthesis is suppressed by AMPK, therefore, these studies were undertaken to determi...

journal_title：Endocrinology

authors： Ning J,Xi G,Clemmons DR

更新日期：2011-08-01 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：:Oxytocin (OT) is released by the posterior pituitary during male orgasm and is supposed to participate in the ejaculatory process. We now report evidence demonstrating the presence of an OT receptor gene (real-time RT-PCR and Northern blot) and protein (immunohistochemistry, Western blot, and binding studies) expressi...

journal_title：Endocrinology

authors： Vignozzi L,Filippi S,Luconi M,Morelli A,Mancina R,Marini M,Vannelli GB,Granchi S,Orlando C,Gelmini S,Ledda F,Forti G,Maggi M

更新日期：2004-04-01 00:00:00

abstract：:A relationship between the actions of TSH and IGF-1 was first recognized several decades ago. The close physical and functional associations between their respective receptors (TSHR and IGF-1R) has been described more recently in thyroid epithelium and human orbital fibroblasts as has the noncanonical behavior of IGF-...

journal_title：Endocrinology

authors： Atkins SJ,Lentz SI,Fernando R,Smith TJ

更新日期：2015-12-01 00:00:00

abstract：:Our laboratory has previously reported that physiological levels of progestins stimulate growth of the human breast cancer cell line T47D. We have also determined that the antiprogestin RU486 inhibits this stimulation. Here we present the unexpected finding that RU486 alone also stimulates growth of these breast cance...

journal_title：Endocrinology

authors： Bowden RT,Hissom JR,Moore MR

更新日期：1989-05-01 00:00:00

abstract：:Apoptosis is the process of cellular self-destruction, and genes such as bcl-2 and bax are known to inhibit and promote apoptosis, respectively. In this study, we show that apoptosis can be induced in pancreatic beta-cell lines, and we investigate the apoptotic pathways through the bcl-2 and bax genes and intracellula...

journal_title：Endocrinology

authors： Mizuno N,Yoshitomi H,Ishida H,Kuromi H,Kawaki J,Seino Y,Seino S

更新日期：1998-03-01 00:00:00

abstract：:Dehydroepiandrosterone (DHEA) fed at 0.4% in the diet is known to exert strong antihyperglycemic effects in C57BL/KsJ genetically diabetic (db/db) mice. Three of the major metabolic products of DHEA; DHEA sulfate, alpha-hydroxyetiocholanolone (alpha-ET), and beta-hydroxyetiocholanolone (beta-ET) when fed at 0.1% in th...

journal_title：Endocrinology

authors： Coleman DL,Leiter EH,Applezweig N

更新日期：1984-07-01 00:00:00

abstract：:Changes in serum and pituitary LH and FSH concentrations have been measured in the newborn male rat before, during, and up to 24 h after birth. A sudden and transient increase of serum and pituitary gonadotropins is observed at birth, which is followed by a rapid increase of absolute and relative testicular weights be...

journal_title：Endocrinology

authors： Corbier P,Kerdelhue B,Picon R,Roffi J

更新日期：1978-12-01 00:00:00

abstract：:Properties of cyclic 3',5'-nucleotide phosphodiesterase in the 100,500 X g supernatant of the bovine thyroid were investigated. The enzyme activity was measured by a radioisotopic method using an anionic-exchange resin, and it was found that the activity was stimulated by Mg2+. Sephadex G-200 gel filtration separated ...

journal_title：Endocrinology

authors： Yagura T,Azuma Y,Akazawa Y,Nagata I,Uchino H

更新日期：1978-11-01 00:00:00

abstract：:The antiestrogen ICI 164,384 (ICI) binds the estrogen receptor (ER) with approximately 20% the affinity of estradiol, but without the partial agonistic effects caused by tamoxifen. Investigations into the mechanism of ICI action have used ER molecules expressed in vitro to examine the binding of ER to ICI and the capa...

journal_title：Endocrinology

authors： Gibson MK,Nemmers LA,Beckman WC Jr,Davis VL,Curtis SW,Korach KS

更新日期：1991-10-01 00:00:00

abstract：:Osteocalcin (OC), a bone specific protein expressed during differentiation and mineralization of the bone extracellular matrix, is down-regulated upon treatment with transforming growth factor (TGF)-beta 1. To address the potential role of OC gene expression in relation to TGF-beta 1 regulation of bone formation and r...

journal_title：Endocrinology

authors： Banerjee C,Stein JL,Van Wijnen AJ,Frenkel B,Lian JB,Stein GS

更新日期：1996-05-01 00:00:00

abstract：:Thyroid hormones are essential for normal development and metabolism. Their synthesis requires transport of iodide into thyroid follicles. The mechanisms involving the apical efflux of iodide into the follicular lumen are poorly elucidated. The discovery of mutations in the SLC26A4 gene in patients with Pendred syndro...

journal_title：Endocrinology

authors： Pesce L,Bizhanova A,Caraballo JC,Westphal W,Butti ML,Comellas A,Kopp P

更新日期：2012-01-01 00:00:00

abstract：:During the third week of postnatal life, dramatic ontogenic changes occur in the morphology and enzymology of the small intestine of the infant rat, enabling the animal to make the transition from milk to solid food. To investigate the roles of T4 and GH in regulation of these changes, infant rats were hypophysectomiz...

journal_title：Endocrinology

authors： Castillo RO,Glasscock GF,Noren KM,Reisenauer AM

更新日期：1991-09-01 00:00:00

abstract：:Tunicamycin, an inhibitor of glycosylation, was incubated with ovine thyroid cells in culture to determine the role of glycosylation in the subsequent processing of thyroglobulin to form thyroid hormone. After a 6-h preincubation with tunicamycin (1 microgram/ml), mannose incorporation into glycoproteins in the cell l...

journal_title：Endocrinology

authors： Eggo MC,Burrow GN

更新日期：1983-11-01 00:00:00

abstract：:Growth hormone-releasing factor-like immunoreactivity (GRF-LI) was detected in partially purified extracts of rat hypothalamus and duodenum with a highly specific RIA for rat GRF (rGRF). The concentration of rGRF-LI in the rat hypothalamus was 32.5 fmol/mg dry weight (455 fmol or 3.18 ng/region), while the rat duodenu...

journal_title：Endocrinology

authors： Bruhn TO,Mason RT,Vale WW

更新日期：1985-10-01 00:00:00

abstract：:Progesterone (P4) inhibits apoptosis of rat granulosa cells and spontaneously immortalized granulosa cells (SIGCs), which were derived from rat granulosa cells. Defining the mechanism through which P4 mediates its action has been difficult because these cells do not express the classic nuclear P4 receptor. Previous st...

journal_title：Endocrinology

authors： Peluso JJ,Pappalardo A,Fernandez G,Wu CA

更新日期：2004-06-01 00:00:00

abstract：:Isolated growth hormone deficiency type II (IGHD2) is mainly caused by heterozygous splice-site mutations in intron 3 of the GH1 gene. A dominant-negative effect of the mutant GH lacking exon 3 on wild-type GH secretion has been proposed; however, the molecular mechanisms involved are elusive. To uncover the molecular...

journal_title：Endocrinology

authors： Ariyasu D,Kubo E,Higa D,Shibata S,Takaoka Y,Sugimoto M,Imaizumi K,Hasegawa T,Araki K

更新日期：2019-11-01 00:00:00

abstract：:To determine if oxytocin (OT) is present in cynomolgus monkey corpus luteum, OT was measured by a specific and sensitive RIA in 13 corpora lutea, ovarian venous plasma on the ipsilateral side and peripheral venous plasma at different stages of the luteal phase. Serial dilution of acetic acid extract of the corpus lute...

journal_title：Endocrinology

authors： Khan-Dawood FS,Marut EL,Dawood MY

更新日期：1984-08-01 00:00:00

abstract：:The most significant increase in metabolic syndrome over the previous decade occurred in women of reproductive age, which is alarming given that metabolic syndrome is associated with reproductive problems including subfertility and early pregnancy loss. Individuals with metabolic syndrome often consume excess fructose...

journal_title：Endocrinology

authors： Saben JL,Asghar Z,Rhee JS,Drury A,Scheaffer S,Moley KH

更新日期：2016-02-01 00:00:00

abstract：:The master circadian clock located within the hypothalamic suprachiasmatic nucleus (SCN) is necessary for the circadian rhythm of glucocorticoid (GC) release. The pathways by which the SCN sustains rhythmic GC release remain unclear. We studied the circadian regulation of cortisol release in the behaviorally split gol...

journal_title：Endocrinology

authors： Lilley TR,Wotus C,Taylor D,Lee JM,de la Iglesia HO

更新日期：2012-02-01 00:00:00

abstract：:Androgen regulation of ornithine decarboxylase (ODC) and S-adenosylmethionine decarboxylase (AdoMetDC) activities and accumulation of the mRNAs encoding these two enzymes in rodent kidney and accessory sex organs were studied. The ODC mRNA concentration and enzyme activity were increased by androgens in kidney, prosta...

journal_title：Endocrinology

authors： Crozat A,Palvimo JJ,Julkunen M,Jänne OA

更新日期：1992-03-01 00:00:00

abstract：:The effect of fibroblast growth factor (FGF) on LH-stimulated testosterone production was investigated using primary cultures of rat testicular cells. Testicular cells obtained from neonatal rats (8-9 days of age) were maintained in culture for 3 days and then challenged with LH with or without basic FGF. After 3 addi...

journal_title：Endocrinology

authors： Fauser BC,Baird A,Hsueh AJ

更新日期：1988-12-01 00:00:00

abstract：:TGF-beta is a multifunctional factor involved in regulating a variety of cellular activities. In mammals, TGF-beta is known to regulate reproduction, including ovarian functions. The role of TGF-beta in lower vertebrates, such as fish, is poorly understood. To examine the role of TGF-beta in fish reproduction, cDNAs e...

journal_title：Endocrinology

authors： Kohli G,Hu S,Clelland E,Di Muccio T,Rothenstein J,Peng C

更新日期：2003-05-01 00:00:00

abstract：:Sclerostin (SOST), a member of the cystine-knot superfamily, is essential for proper skeletogenesis because a loss-of-function mutation in the SOST gene results in sclerosteosis featured with massive bone growth in humans. To understand the function of SOST in developmental skeletal tissue formation, we examined SOST ...

journal_title：Endocrinology

authors： Ohyama Y,Nifuji A,Maeda Y,Amagasa T,Noda M

更新日期：2004-10-01 00:00:00

abstract：:Male Wistar rats were treated with 50 mg 3,3',4,4'-tetrachlorobiphenyl (TCB)/kg BW or vehicle. After 4 days, the livers were isolated and perfused for 90 min with 2 nM [125I]T3 or 10 nM [125I]T4 in Krebs-Ringer medium containing 1% albumin. Deiodination and conjugation products and remaining substrates were determined...

journal_title：Endocrinology

authors： Beetstra JB,van Engelen JG,Karels P,van der Hoek HJ,de Jong M,Docter R,Krenning EP,Hennemann G,Brouwer A,Visser TJ

更新日期：1991-02-01 00:00:00

abstract：:A growing body of information now supports the existence of a complete intraovarian insulin-like growth Factor I (IGF-I) system replete with ligands, receptors, and binding protein(s). However, studies concerned with the regulation of ovarian IGF-I gene expression remain scarce. It was thus the objective of this commu...

journal_title：Endocrinology

authors： Botero LF,Roberts CT Jr,LeRoith D,Adashi EY,Hernandez ER

更新日期：1993-06-01 00:00:00