An ovarian role in prolonging and terminating the two surges of prolactin in pseudopregnant rats.

abstract：:Kisspeptins are new actors in the neuroendocrine regulation of reproduction. In vertebrates, the number of kiss genes varies from none to three. Zebrafish have two kiss genes, kiss1 and kiss2, and two kiss receptors (GPR54), kiss1r and kiss2r. To provide detailed information on the organization of the kiss systems in ...

journal_title：Endocrinology

authors： Servili A,Le Page Y,Leprince J,Caraty A,Escobar S,Parhar IS,Seong JY,Vaudry H,Kah O

更新日期：2011-04-01 00:00:00

abstract：:Bioactive peptides are usually synthesized as inactive precursor proteins that yield bioactive products only after specific biosynthetic processing events. Large dense core vesicles (LDCV) are usually the site of storage of mature peptides. Atrial myocyte LDCV are rather unique in their storage of intact prohormone, p...

journal_title：Endocrinology

authors： Marx R,Mains RE

更新日期：1997-12-01 00:00:00

abstract：:Chorionic gonadotropin (CG) is an early embryo-derived signal that is known to support the corpus luteum. An in vivo baboon model was used to study the direct actions of human CG (hCG) on the endometrium, during the periimplantation period. Endometrial gene expression was analyzed using microarrays. The endometrial bi...

journal_title：Endocrinology

authors： Sherwin JR,Sharkey AM,Cameo P,Mavrogianis PM,Catalano RD,Edassery S,Fazleabas AT

更新日期：2007-02-01 00:00:00

abstract：:Cultures of Sertoli cells were treated with freshly isolated, intact germ cells to determine if germ cells were capable of influencing Sertoli cell function. By using two-dimensional polyacrylamide gel electrophoresis and autoradiography, germ cells were found to increase several-fold the incorporation of [32P]orthoph...

journal_title：Endocrinology

authors： Ireland ME,Welsh MJ

更新日期：1987-04-01 00:00:00

abstract：:gamma-Aminobutyric acid (GABA) inhibits the embryonic migration of GnRH neurons and regulates hypothalamic GnRH release. A subset of GnRH neurons expresses GABA along their migratory route in the nasal compartment before entering the brain, suggesting that GABA produced by GnRH neurons may help regulate the migratory ...

journal_title：Endocrinology

authors： Heger S,Seney M,Bless E,Schwarting GA,Bilger M,Mungenast A,Ojeda SR,Tobet SA

更新日期：2003-06-01 00:00:00

abstract：:Peptidergic neurons synthesizing kisspeptin (KP) and neurokinin B (NKB) in the hypothalamic infundibular nucleus have been implicated in negative sex steroid feedback to GnRH neurons. In laboratory rodents, testosterone decreases KP and NKB expression in this region. In the present study, we addressed the hypothesis t...

journal_title：Endocrinology

authors： Molnár CS,Vida B,Sipos MT,Ciofi P,Borsay BÁ,Rácz K,Herczeg L,Bloom SR,Ghatei MA,Dhillo WS,Liposits Z,Hrabovszky E

更新日期：2012-11-01 00:00:00

abstract：:In cultured rat pituitary cells, increases in the cytosolic calcium concentration ([Ca2+]i) and LH release are induced by activation of GnRH receptors as well as by nonreceptor-mediated stimuli. Treatment of pituitary cells with the myosin light chain kinase (MLCK) inhibitor, wortmannin, attenuated GnRH-induced LH rel...

journal_title：Endocrinology

authors： Rao K,Paik WY,Zheng L,Jobin RM,Tomić M,Jiang H,Nakanishi S,Stojilkovic SS

更新日期：1997-04-01 00:00:00

abstract：:CRF activity of synthetic vasopressins and pitressin was studied in an in vitro system of cultured rat adenohypophyseal cells using direct measurement of ACTH by radioimmunoassay. Pitressin (posterior pituitary extract) induced a dose-related secretion of ACTH whereas synthetic arginine or lysine vasopressin were devo...

journal_title：Endocrinology

authors： Yasuda N,Greer MA

更新日期：1976-04-01 00:00:00

abstract：:The possible role of atrial natriuretic factor (ANF) in the regulation of adrenal sensitivity to angiotensin II (AII) was investigated in vivo and in vitro by analyzing the characteristics of the inhibitory effect of ANF on aldosterone production stimulated by AII and other stimuli. In isolated adrenal glomerulosa cel...

journal_title：Endocrinology

authors： Aguilera G

更新日期：1987-01-01 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：:To obtain large amounts of hTSH and to study the role of the N-linked oligosaccharides for its biological activity, hTSH was produced using recombinant baculovirus containing the human alpha-subunit and a hTSH beta-minigene, respectively, both under the control of the polyhedrin promoter. Expression in insect cells wa...

journal_title：Endocrinology

authors： Grossmann M,Wong R,Teh NG,Tropea JE,East-Palmer J,Weintraub BD,Szkudlinski MW

更新日期：1997-01-01 00:00:00

abstract：:A variety of chronic stress paradigms have been shown to increase basal activity in the hypothalamic-pituitary-adrenocortical axis, resulting in hypercorticoidism. Despite this, chronically stressed rats typically exhibit facilitated ACTH responses to acute novel stress, suggesting that the activity of some central ne...

journal_title：Endocrinology

authors： Scribner KA,Akana SF,Walker CD,Dallman MF

更新日期：1993-12-01 00:00:00

abstract：:Maternal nutrient restriction at specific stages of gestation has differential effects on fetal development such that the offspring are programmed to be at increased risk of adult disease. We investigated the effect of gestational age and maternal nutrition on the maternal plasma concentration of leptin and cortisol t...

journal_title：Endocrinology

authors： Bispham J,Gopalakrishnan GS,Dandrea J,Wilson V,Budge H,Keisler DH,Broughton Pipkin F,Stephenson T,Symonds ME

更新日期：2003-08-01 00:00:00

abstract：:Decidual/trophoblast PRL-related protein (d/tPRP) is a member of the PRL gene family and is dually expressed in uterine and placental tissues in a highly coordinated pattern during pregnancy. In the present study, we describe the isolation and characterization of the d/tPRP gene. A lambda DASH II Wistar-Kyoto rat geno...

journal_title：Endocrinology

authors： Orwig KE,Dai G,Rasmussen CA,Soares MJ

更新日期：1997-06-01 00:00:00

abstract：:Ovary-specific acidic protein (OSAP) is a novel molecule discovered from a genomic project designed to identify ovary-selective genes in mice. Whereas public databases suggest extraovarian expression of OSAP, its tissue distribution has not yet been well documented. Thus, the expression profile of mouse and human OSAP...

journal_title：Endocrinology

authors： Matsumoto T,Minegishi K,Ishimoto H,Tanaka M,Hennebold JD,Teranishi T,Hattori Y,Furuya M,Higuchi T,Asai S,Kim SH,Miyakoshi K,Yoshimura Y

更新日期：2009-07-01 00:00:00

abstract：:GH receptor (GHR) mediates the anabolic and metabolic effects of GH. We previously characterized a monoclonal antibody (anti-GHR(ext-mAb)) that reacts with subdomain 2 of the rabbit GHR extracellular domain (ECD) and is a conformation-specific inhibitor of GH signaling in cells bearing rabbit or human GHR. Notably, th...

journal_title：Endocrinology

authors： Jiang J,Wan Y,Wang X,Xu J,Harris JM,Lobie PE,Zhang Y,Zinn KR,Waters MJ,Frank SJ

更新日期：2011-12-01 00:00:00

abstract：:Genetically obese Zucker rats, like obese humans, have normal or elevated circulating insulin-like growth factor-I (IGF-I) levels in the presence of low GH secretion. Hyperinsulinemia, increased energy status, or other nutritional factors associated with obesity could be responsible for these findings directly by incr...

journal_title：Endocrinology

authors： Melián E,Velasco B,Barrios R,Sanchez-Franco F

更新日期：1997-03-01 00:00:00

abstract：:131I therapy is a widely accepted treatment for differentiated thyroid cancers which can accumulate iodide. We evaluated the efficiency of 131I therapy against tumors which are transfected with the Na+/I- symporter (NIS) gene. We transfected the rat NIS cDNA expression vector into malignantly transformed rat thyroid c...

journal_title：Endocrinology

authors： Shimura H,Haraguchi K,Miyazaki A,Endo T,Onaya T

更新日期：1997-10-01 00:00:00

abstract：:Although reovirus infection may lead to changes in endocrine function in vivo, little is known about the precise interaction of reovirus with endocrine cells. In this study we have examined the effects of reovirus infection on two types of endocrine cells, GH4C1 cells and RINm5F cells. Both type 1 reovirus and type 3 ...

journal_title：Endocrinology

authors： Maratos-Flier E,Goodman MJ,Fields BN,Kahn CR

更新日期：1985-06-01 00:00:00

abstract：:Estrogen regulates the function, growth, and proliferation of lactotropes in the pituitary. We report here that low-density lipoprotein (LDL) receptor (LDLR) gene expression and LDL uptake are strongly up-regulated by estrogen in pituitary somatolactotropic GH(3) cells. The uptake of LDL was significantly inhibited by...

journal_title：Endocrinology

authors： Smith PM,Cowan A,White BA

更新日期：2004-07-01 00:00:00

abstract：:IGF-I mediates growth-promoting actions of GH. In the present study we investigated whether the somatostatin analog octreotide blunts the stimulatory effects of GH and/or IGF-I on bone growth in hypophysectomized rats infused for 6 d with vehicle, GH, or IGF-I. We found that octreotide significantly suppressed the GH-...

journal_title：Endocrinology

authors： Zapf J,Gosteli-Peter M,Weckbecker G,Hunziker EB,Reinecke M

更新日期：2002-08-01 00:00:00

abstract：:Molecular mechanisms underlying unloading-induced reduction of bone formation have not yet been fully understood. In vitro, Runx2 has been suggested to be involved in mechanical signaling in osteoblasts. However, the roles of Runx2 in vivo during the bone response to mechanical stimuli have not yet been known. The pur...

journal_title：Endocrinology

authors： Salingcarnboriboon R,Tsuji K,Komori T,Nakashima K,Ezura Y,Noda M

更新日期：2006-05-01 00:00:00

abstract：:An estrogen-binding macromolecule was identified in cytosolic fractions prepared from fetal rat lung tissue. This component sedimented at 4.5S on sucrose gradients and was heat labile and proteinaceous in nature. This estrogen-binding protein bound 17 beta-estradiol (Ka = 10(8) M-1) and estrone but had little or no af...

journal_title：Endocrinology

authors： Mendelson CR,Brown PK,MacDonald PC,Johnston JM

更新日期：1981-07-01 00:00:00

abstract：:To study conversion of 3,5,3'-triiodothyroinine (T3) and 3,3',5'-triiodothyronine (rT3) to 3,3'-diiodothyronine (T2) in vitro, T3 or rT3 was incubated at pH 7.35 with homogenates of several rat tissues (liver, kidney, muscle, heart, ling, spleen, intestines, and brain) for 15 min at 37 C. The T2 generated during incub...

journal_title：Endocrinology

authors： Chopra IJ,Wu SY,Nakamura Y,Solomon DH

更新日期：1978-04-01 00:00:00

abstract：:Bovine TSH (bTSH) was subjected to reverse phase HPLC using a Synchropak RP-P C18 column. Elution was with a linear gradient of 0-50% 1-propranol in 0.1% trifluoroacetic acid. Individual fractions were assayed for TSH bioactivity by the cultured thyroid cell cAMP response assay. Optimum separation of biologically acti...

journal_title：Endocrinology

authors： Rapoport B,Seto P

更新日期：1985-04-01 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：: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：: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：:The binding properties of the gamma-emitting 125I-labeled 11 beta-methoxy analog of 16 alpha-iodoestradiol, 11 beta-methoxy-16 alpha-iodoestradiol (MIE2), were characterized for its use in vivo as a ligand for the measurement and localization of estrogen-binding sites. In binding displacement studies, MIE2 bound to ra...

journal_title：Endocrinology

authors： Brown TJ,MacLusky NJ,Toran-Allerand CD,Zielinski JE,Hochberg RB

更新日期：1989-05-01 00:00:00

abstract：:PTH-related protein (PTHrP) is the principle mediator of the syndrome of humoral hypercalcemia of malignancy and has potential paracrine actions on smooth muscle, epithelial cell growth, and placental calcium transport. The human PTHrP gene is complex: a combination of three promoters, one 5' alternative splicing even...

journal_title：Endocrinology

authors： Southby J,Murphy LM,Martin TJ,Gillespie MT

更新日期：1996-04-01 00:00:00