Differential action of decidual luteotropin on luteal and follicular production of testosterone and estradiol.

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：:The Pax6 transcription factor is crucial for pancreatic α-cells. Indeed, Pax6-deficient mouse models are characterized by markedly altered α-cell differentiation. Our objective was to investigate the role of Pax6 in glucagon secretion process. We used a Pax6-deficient model in rat primary enriched-α cells with specifi...

journal_title：Endocrinology

authors： Gosmain Y,Cheyssac C,Masson MH,Guérardel A,Poisson C,Philippe J

更新日期：2012-09-01 00:00:00

abstract：:Kisspeptin (encoded by the Kiss1 gene) is an important regulator of reproduction. In rodents, Kiss1 is expressed in two hypothalamic regions, the arcuate nucleus and anteroventral periventricular/ periventricular continuum, where it is regulated by sex steroids. However, the distribution, regulation, and functional si...

journal_title：Endocrinology

authors： Kim J,Semaan SJ,Clifton DK,Steiner RA,Dhamija S,Kauffman AS

更新日期：2011-05-01 00:00:00

abstract：:B-cell lymphoma 2 (BCL2) family kin (BFK) is a recently identified novel protein that is similar to proteins of the BCL2 family. In the present study, we discovered that the mouse Bfk transcript is expressed at the highest level in the epididymis. Two transcripts of 0.9 and 2.6 kb in size were identified, with alterna...

journal_title：Endocrinology

authors： Pujianto DA,Damdimopoulos AE,Sipilä P,Jalkanen J,Huhtaniemi I,Poutanen M

更新日期：2007-07-01 00:00:00

abstract：:We have designed a new experimental system based on in vitro reconstituted thyroid follicles (RTF) to study the relative implication of macropinocytosis and micropinocytosis processes in the internalization of thyroglobulin (Tg). Thyrocytes cultured in the presence of TSH reorganize in histiotypic and functional folli...

journal_title：Endocrinology

authors： Bernier-Valentin F,Kostrouch Z,Rabilloud R,Rousset B

更新日期：1991-10-01 00:00:00

abstract：:The electrophoretic distribution of the polypeptides synthesized by bovine granulosa cell cultures after metabolic labeling with [35S]methionine has been analyzed by double gel electrophoresis. The fluctuations of 35 polypeptides have been followed as a function of the size of the follicles from which cultures origina...

journal_title：Endocrinology

authors： Savion N,Gospodarowicz D

更新日期：1980-12-01 00:00:00

abstract：:The effects of estrogens, androgens, and glucocorticoids on bone resorption were compared in organ culture. At a concentration of 10(-5) M, corticosterone, testosterone, dihydrotestosterone, dehydroepiandosterone, estradiol, ethinyl estradiol and estrone did not inhibit the release of 45Ca from 19-day fetal rat long b...

journal_title：Endocrinology

authors： Caputo CB,Meadows D,Raisz LG

更新日期：1976-04-01 00:00:00

abstract：:We have characterized opioid binding sites in the Sertoli cells of adult and 18-day-old rat testes. Maximal specific etorphine binding was attained after 30 min at 4 C. The binding was reversible, with association and dissociation rate constants of 0.98 X 10(5) M-1 min-1 and 0.33 min-1, respectively. Scatchard analyse...

journal_title：Endocrinology

authors： Fabbri A,Tsai-Morris CH,Luna S,Fraioli F,Dufau ML

更新日期：1985-12-01 00:00:00

abstract：:Deciduomal reactions in response to artificial stimuli were induced on the tube-ligated uterine horns of unilateral pregnant hamsters. Serum progesterone levels were determined, and the changes of estrogen and progesterone receptors (ER and PR, respectively) were simultaneously studied in the deciduoma. After stimulat...

journal_title：Endocrinology

authors： Chen TJ,Hwang TC,Huang CC,Jow GM,Yu JY

更新日期：1989-07-01 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：:Exercise has a potent insulin-sensitivity enhancing effect on skeletal muscle, but the intracellular mechanisms that mediate this effect are not well understood. In muscle, Ras-related C3 botulinum toxin substrate 1 (Rac1) regulates both insulin- and contraction-stimulated glucose transport and is dysregulated in insu...

journal_title：Endocrinology

authors： Sylow L,Møller LL,D'Hulst G,Schjerling P,Jensen TE,Richter EA

更新日期：2016-08-01 00:00:00

abstract：:The androgen receptor (AR) in Sertoli cells mediates the actions of testosterone on spermatogenesis. However, the transcription factors responsible for AR gene regulation in Sertoli cells remain unknown. In this study, we determined that nuclear factor-kappaB (NF-kappaB) regulates transcription of AR in primary cultur...

journal_title：Endocrinology

authors： Zhang L,Charron M,Wright WW,Chatterjee B,Song CS,Roy AK,Brown TR

更新日期：2004-02-01 00:00:00

abstract：:In the present work we describe homologous desensitization of gonadotropin release from pituitary cells in response to short-term exposure to GnRH. Like the release process itself, desensitization requires receptor occupancy by an agonist. In contrast, however, inhibition of LH release by chelation of extracellular ca...

journal_title：Endocrinology

authors： Smith WA,Conn PM

更新日期：1983-01-01 00:00:00

abstract：:Levels of insulin-like growth factor-I (IGF-I), IGF-II, and IGF-binding proteins (IGFBPs) were studied in ovine follicular fluid and serum with a view to determining their respective endocrine and/or paracrine roles in ovarian folliculogenesis. Ovarian follicles of Ile-de-France ewes were dissected and measured indivi...

journal_title：Endocrinology

authors： Monget P,Monniaux D,Pisselet C,Durand P

更新日期：1993-04-01 00:00:00

abstract：:The proglucagon gene (glu) encodes the incretin hormone glucagon-like peptide-1 (GLP-1), produced in the intestinal endocrine L cells. We found previously that the bipartite transcription factor beta-catenin/T cell factor (cat/TCF), the major effector of the canonical Wnt signaling pathway, activates intestinal glu ex...

journal_title：Endocrinology

authors： Yi F,Sun J,Lim GE,Fantus IG,Brubaker PL,Jin T

更新日期：2008-05-01 00:00:00

abstract：:Hypothyroid animals secrete not only more TSH, but also qualitatively different TSH, with altered oligosaccharides. To explore the cellular mechanism of oligosaccharide modulation by thyroid status, 40 mice were treated without or with propylthiouracil (PTU), and pituitaries were removed after 1, 2, 3, 4, and 6 weeks....

journal_title：Endocrinology

authors： Helton TE,Magner JA

更新日期：1994-11-01 00:00:00

abstract：:LH receptor (LHR) expression in the ovary is regulated by the RNA binding protein, (LHR mRNA binding protein [LRBP]), which has been identified as being mevalonate kinase. This study examined the role of microRNA miR-122 in LRBP-mediated LHR mRNA expression. Real-time PCR analysis of ovaries from pregnant mare serum g...

journal_title：Endocrinology

authors： Menon B,Sinden J,Franzo-Romain M,Botta RB,Menon KM

更新日期：2013-12-01 00:00:00

abstract：:Carbohydrate metabolism in pregnancy reflects the balance between counterregulatory hormones, which induce insulin resistance, and lactogenic hormones, which stimulate beta-cell proliferation and insulin production. Here we explored the interactions of prolactin (PRL) and glucocorticoids in the regulation of beta-cell...

journal_title：Endocrinology

authors： Arumugam R,Horowitz E,Lu D,Collier JJ,Ronnebaum S,Fleenor D,Freemark M

更新日期：2008-11-01 00:00:00

abstract：:Melatonin receptors in lizard brain were identified and characterized using 125I-labeled melatonin ([125I]MEL) after solubilization with the detergent digitonin. Saturation studies of solubilized material revealed a high affinity binding site, with an apparent equilibrium dissociation constant of 181 +/- 45 pM. Bindin...

journal_title：Endocrinology

authors： Rivkees SA,Conron RW Jr,Reppert SM

更新日期：1990-09-01 00:00:00

abstract：:Ghrelin, a novel GH-releasing acylated peptide, was recently isolated from rat stomach. It stimulated the release of GH from the anterior pituitary through the GH secretagogue receptor (GHS-R). Ghrelin messenger RNA and the peptide are present in rat stomach, but its cellular source has yet to be determined. Using two...

journal_title：Endocrinology

authors： Date Y,Kojima M,Hosoda H,Sawaguchi A,Mondal MS,Suganuma T,Matsukura S,Kangawa K,Nakazato M

更新日期：2000-11-01 00:00:00

abstract：:UMR106-06 cells predominantly express the C1a isoform of the rat calcitonin (CT) receptor (CTR). We have compared the homologous regulation of the C1a CTR endogenously expressed in UMR106-06 cells with the cloned C1a CTR in transfected HEK 293 cells, in which expression is driven by a heterologous promoter. It was fou...

journal_title：Endocrinology

authors： Findlay DM,Houssami S,Christopoulos G,Sexton PM

更新日期：1996-11-01 00:00:00

abstract：:Functional disruption of either MC3R or MC4R results in obesity, implicating both in the control of energy homeostasis. The ligands for these receptors are derived from the prohormone proopiomelancortin (POMC), which is posttranslationally processed to produce a set of melanocortin peptides with a range of activities ...

journal_title：Endocrinology

authors： Tung YC,Piper SJ,Yeung D,O'Rahilly S,Coll AP

更新日期：2006-12-01 00:00:00

abstract：:The rapid and temporary suppression of reproductive behavior is often assumed to be an important feature of the adaptive acute stress response. However, how this suppression operates at the mechanistic level is poorly understood. The enzyme aromatase converts testosterone to estradiol in the brain to activate reproduc...

journal_title：Endocrinology

authors： Dickens MJ,Cornil CA,Balthazart J

更新日期：2011-11-01 00:00:00

abstract：:Repeated injections of recombinant human (rh) activin-A over a 2- to 3-day period are reportedly needed to stimulate the in vivo secretion of FSH. In this paper we present results showing that acute treatment with rh-activin-A caused marked and dose-dependent increases in plasma FSH, but not LH, levels in adult female...

journal_title：Endocrinology

authors： Rivier C,Vale W

更新日期：1991-11-01 00:00:00

abstract：:Polyadenylated RNA, extracted from rat hypothalami, cross-hybridized with a RNA probe complementary in sequence to rat PTH (rPTH) messenger RNA (mRNA). Amplification of complementary DNA (cDNA) by the polymerase chain reaction also demonstrated the presence of rPTH mRNA in the rat hypothalamus and parathyroid gland. r...

journal_title：Endocrinology

authors： Fraser RA,Kronenberg HM,Pang PK,Harvey S

更新日期：1990-11-01 00:00:00

abstract：:The present study was designed to characterize the interaction of calcium and PTH in the control of renin release in isolated rat kidneys perfused in a closed circuit at constant flow. Kidneys were rendered nonfiltering using low perfusion pressures (70 mm Hg) and a hyperoncotic perfusate (100 g/liter BSA). Under thes...

journal_title：Endocrinology

authors： Helwig JJ,Musso MJ,Judes C,Nickols GA

更新日期：1991-09-01 00:00:00

abstract：:A 50-70% depletion in the anterior pituitary concentration of PRL occurred within 5 min of electrical stimulation of a single abdominal mammary nerve of urethane-anesthetized lactating rats previously nonsuckled for 6-8 h. The stimulus parameters were: 1-msec pulses, 10-20/sec at 5-30 V applied 5 sec on and 10 sec off...

journal_title：Endocrinology

authors： Mena F,Pacheco P,Grosvenor CE

更新日期：1980-02-01 00:00:00

abstract：:Porcine serum contains five insulin-like growth factor-binding proteins (IGFBPs), whose regulation has been studied by ligand blotting. To more accurately quantify changes in two specific forms of IGFBP a heterologous RIA for porcine (p) IGFBP-2 was developed, and IGFBP-1 levels were analyzed by immunoblotting. By RIA...

journal_title：Endocrinology

authors： McCusker RH,Cohick WS,Busby WH,Clemmons DR

更新日期：1991-11-01 00:00:00

abstract：:In this study, site-directed mutagenesis and biochemical strategies have been used to establish whether disulfide bonding between extracellular Cys residues contributes to the structural integrity of the GnRH receptor (GnRH-R) and, if so, to delineate the nature of the bonding patterns involved. The majority of G prot...

journal_title：Endocrinology

authors： Cook JV,Eidne KA

更新日期：1997-07-01 00:00:00

abstract：:Reduced and S-carbamidomethylated human GH (RCAM-hGH) was digested with human plasmin, yielding a mixture of products. These were partially separated by chromatography on DEAE-cellulose, yielding three major fractions: Da and Db, which were equipotent with native hGH in the weight gain test; and Dc, which was about ha...

journal_title：Endocrinology

authors： Mills JB,Kostyo JL,Moseley MH,Reagan CR,Wilhelmi AE

更新日期：1978-05-01 00:00:00