Transcriptional regulation of osteocalcin production by transforming growth factor-beta in rat osteoblast-like cells.

abstract：:Glial cell line-derived neurotrophic factor (GDNF) is expressed in many neuronal and non-neuronal tissues during development as well as in adult animals. GDNF signaling is mediated through a two-component system consisting of the so called GDNF receptor-alfa (GFRalpha1) which binds to GDNF. Thereafter this complex bin...

journal_title：Endocrinology

authors： Urbano AG,Suárez-Peñaranda JM,Diéguez C,Alvarez CV

更新日期：2000-05-01 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：:The purpose of these studies was to determine whether changes in FSH receptors correlated with FSH-induced attenuation of FSH-responsive adenylyl cyclase in immature porcine granulosa cells. Cells were incubated with FSH (1-1000 ng/ml) for up to 24 h, treated with acidified medium (pH 3.5) to remove FSH bound to cells...

journal_title：Endocrinology

authors： Ford KA,LaBarbera AR

更新日期：1988-11-01 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：:Maternal and fetal metabolism of vitamin D was examined in term pregnant rabbits fed a normal diet and in those supplemented with a large amount of vitamin D3. Term pregnant rabbits (27--30 days of gestation) fed the normal diet showed lower levels of plasma calcium, 25-hydroxyvitamin D3 (250HD3), and 24,25-dihydroxyv...

journal_title：Endocrinology

authors： Kubota M,Ohno J,Shiina Y,Suda T

更新日期：1982-06-01 00:00:00

abstract：:The ability of cells to directly respond to glucocorticoids and aldosterone is a function of GR and MR expression, and coexpression of 11beta-hydroxysteroid dehydrogenases (11betaHSDs), which convert glucocorticoids and their 11-ketometabolites into either receptor inactive or active derivatives. The aim of the presen...

journal_title：Endocrinology

authors： Sheppard KE,Autelitano DJ

更新日期：2002-01-01 00:00:00

abstract：:Chronically elevated fatty acids contribute to insulin resistance through poorly defined mechanisms. Endoplasmic reticulum (ER) stress and the subsequent unfolded protein response (UPR) have been implicated in lipid-induced insulin resistance. However, the UPR is also a fundamental mechanism required for cell adaptati...

journal_title：Endocrinology

authors： Achard CS,Laybutt DR

更新日期：2012-05-01 00:00:00

abstract：:Equine CG (eCG) both radioiodinated and unlabeled, was injected iv into male rats, and the disappearance of the hormone from the circulation was studied. The uptake and inactivation of the hormone by various tissues was also examined. The disappearance curve of eCG consisted of two exponential components with apparent...

journal_title：Endocrinology

authors： Aggarwal BB,Papkoff H

更新日期：1981-10-01 00:00:00

abstract：:Acute nephrectomy seriously impairs hypovolemic adrenal epinephrine (E) release in the anesthetized dog. That systemically delivered angiotensin II totally restores E release to acutely anephric dogs is equally clear, but the dose-response relationship of this angiotensin II effect is not known. Adrenal secretion rate...

journal_title：Endocrinology

authors： Badder EM,Duarte B,Seaton JF,Hamaji M,Harrison TS

更新日期：1985-11-01 00:00:00

abstract：:Light and electron microscopic triple immunostaining was performed on coronal vibratome sections prepared from the hypothalamus of ovariectomized (OVX) and OVX plus estrogen-treated African green monkeys (Cercopithecus aethiops). Immunoreactivity for progesterone receptors (PRs) and neuropeptide-Y (NPY) was visualized...

journal_title：Endocrinology

authors： Horvath TL,Shanabrough M,Naftolin F,Leranth C

更新日期：1993-07-01 00:00:00

abstract：:As a model of the changes in peripheral iodothyronine metabolism that occur during ontogeny, we have studied the metabolism of 125I-labeled T4 and several of its partially deiodinated derivatives by the liver of the chick embryo. Homogenates of livers obtained from chicks varying in embryonic age from 8 days to the ti...

journal_title：Endocrinology

authors： Borges M,LaBourene J,Ingbar SH

更新日期：1980-12-01 00:00:00

abstract：:A clonal cell line (44-2C) which synthesizes and secretes somatostatin, neurotensin, calcitonin (CT), and CT gene-related peptide and transiently expresses c-fos was used to characterize the mechanism of action of basic fibroblast growth factor (bFGF). bFGF had two modes of action: 1) short term incubation of 44-2C ce...

journal_title：Endocrinology

authors： Zeytin FN,Rusk SF,Raymond V,Mandell AJ

更新日期：1988-03-01 00:00:00

abstract：:To ascertain whether changes in the pattern of GnRH release from the hypothalmus occur during the 4-day rat estrous cycle, the pattern of LH release was characterized on each day of the estrous cycle, and the results were interpreted in light of the changes in pituitary responsiveness to GnRH previously described by t...

journal_title：Endocrinology

authors： Fox SR,Smith MS

更新日期：1985-04-01 00:00:00

abstract：:This study determined whether a rise in tonic secretion of LH occurred before long day-induced precocious puberty of the female ferret. Twenty immature females were assigned to 1 of 2 photoperiods at 15 weeks of age. Ten ferrets were placed in a long day, stimulatory photoperiod (16 h of light, 8 h of darkness) to ind...

journal_title：Endocrinology

authors： Ryan KD,Robinson SL

更新日期：1985-05-01 00:00:00

abstract：:Ghrelin is more effective than GHRH in stimulating GH release in normal adult humans and monkeys in vivo. This robust effect of ghrelin has been largely attributed to regulation of hypothalamic input, whereas the direct effect of ghrelin on pituitary GH release has been minimized by the observation that ghrelin has on...

journal_title：Endocrinology

authors： Kineman RD,Luque RM

更新日期：2007-09-01 00:00:00

abstract：:In previous studies we demonstrated a much greater rate of glucose cycling (glucose-->glucose-6-P-->glucose) in islets from ob/ob mice than from lean litter mates. Cycling was further augmented by dexamethasone treatment. To determine whether these findings could be accounted for by increased islet glucose-6-phosphata...

journal_title：Endocrinology

authors： Khan A,Hong-Lie C,Landau BR

更新日期：1995-05-01 00:00:00

abstract：:The effect of a potent agonistic LHRH analog D-Trp-6-LHRH on the hyperprolactinemia induced by haloperidol was tested in intact and ovariectomized female rats. The administration of D-Trp-6-LHRH at two dose levels (5 and 50 micrograms/day) for 20 days blocked the increase in serum PRL induced by haloperidol in intact ...

journal_title：Endocrinology

authors： Debeljuk L,Torres-Alemán I,Schally AV

更新日期：1985-06-01 00:00:00

abstract：:Oxytocin (OT) receptors (OTRs) mediate reproductive functions, including the initiation of labor and milk ejection. OTR messenger RNA levels are highly regulated, reaching the greatest concentration in the uterus at the end of gestation, and in the mammary gland during lactation. Factors directly effecting changes in ...

journal_title：Endocrinology

authors： Hoare S,Copland JA,Wood TG,Jeng YJ,Izban MG,Soloff MS

更新日期：1999-05-01 00:00:00

abstract：:During the preovulatory and estradiol-progesterone-induced GnRH-LH surge, a subpopulation of GnRH neurons transiently expresses the transcription factor c-fos, which is a useful marker of cell activation. To further characterize this subpopulation of GnRH neurons, multiple immunohistochemical procedures were applied t...

journal_title：Endocrinology

authors： Eyigor O,Jennes L

更新日期：2000-02-01 00:00:00

abstract：:Corticotropin-releasing factor receptor type 2beta, expressed in the rodent cardiovascular system, is a member of the G protein-coupled receptor family. This receptor is coupled positively to adenylate cyclase and is bound preferentially by the urocortin (Ucn)-related peptides (Uncs): Ucn, Ucn II, and Ucn III. In the ...

journal_title：Endocrinology

authors： Kageyama K,Suda T

更新日期：2003-06-01 00:00:00

abstract：:To determine the relative role of the androgenic and/or estrogenic components of the action of dehydroepiandrosterone (DHEA) on the histomorphology and structure of the rat mammary gland, ovariectomized (OVX) female animals received DHEA administered alone or in combination with the pure antiandrogen flutamide or the ...

journal_title：Endocrinology

authors： Sourla A,Martel C,Labrie C,Labrie F

更新日期：1998-02-01 00:00:00

abstract：:Regulation of the number of pituitary vasopressin (VP) receptors plays an important role in controlling pituitary responsiveness during alterations of the hypothalamic pituitary adrenal axis. The mechanisms regulating these VP receptors were studied by analysis of the effects of adrenalectomy and glucocorticoid admini...

journal_title：Endocrinology

authors： Rabadan-Diehl C,Makara G,Kiss A,Lolait S,Zelena D,Ochedalski T,Aguilera G

更新日期：1997-12-01 00:00:00

abstract：:Studies show that a subset of transgender men desire children; however, there is a paucity of literature on the effect of gender-affirming testosterone therapy on reproductive function. In this manuscript, we will review the process of gender-affirming hormone therapy for transgender men and what is known about ovaria...

journal_title：Endocrinology

authors： Moravek MB,Kinnear HM,George J,Batchelor J,Shikanov A,Padmanabhan V,Randolph JF

更新日期：2020-03-01 00:00:00

abstract：:GH-releasing factor (GRF) is a hypothalamic peptide that stimulates the secretion of pituitary GH. The possibility of feedback effects of GRF within the central nervous system was studied in conscious freely moving male rats with indwelling iv and intracerebroventricular (icv) cannulae. Animals were injected icv or iv...

journal_title：Endocrinology

authors： Katakami H,Arimura A,Frohman LA

更新日期：1986-05-01 00:00:00

abstract：:In the corpus luteum, prostaglandin F2 alpha (PGF2 alpha) appears to be a physiological agent with both antisteroidogenic and luteolytic actions. It is hypothesized that the antisteroidogenic action of PGF2 alpha acts through altered transport of cholesterol to the mitochondrial cytochrome P450 side-chain cleavage enz...

journal_title：Endocrinology

authors： McLean MP,Billheimer JT,Warden KJ,Irby RB

更新日期：1995-11-01 00:00:00

abstract：:After reproductive senescence or gonadectomy, changes occur in neural gene expression, ultimately altering brain function. The endocrine mechanisms underlying these changes in gene expression beyond immediate hormone loss are poorly understood. To investigate this, we measured changes in gene expression the dorsal str...

journal_title：Endocrinology

authors： Meitzen J,Perry AN,Westenbroek C,Hedges VL,Becker JB,Mermelstein PG

更新日期：2013-05-01 00:00:00

abstract：:The aim of this study was to characterize the dynamics and functional relevance of interleukin-1 beta (IL-1 beta)-induced nitric oxide production in isolated pancreatic islets. Thus, islets were isolated from adult rats, precultured for 3-5 days in medium RPMI-1640 plus 10% fetal calf serum, and then exposed to IL-1 b...

journal_title：Endocrinology

authors： Welsh N,Eizirik DL,Bendtzen K,Sandler S

更新日期：1991-12-01 00:00:00

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：:The effect of TSH stimulation on cellular (c)-myc mRNA content in cultured thyroid cells was examined by Northern blot analysis. Polyadenylated mRNA was prepared from quiescent FRTL-5 rat thyroid cells and from cells stimulated by TSH for 8 h. A major 2.1 kilobase (kb) transcript was enhanced 5.5-fold by TSH. (Bu)2cAM...

journal_title：Endocrinology

authors： Dere WH,Hirayu H,Rapoport B

更新日期：1985-11-01 00:00:00

abstract：:Rat pituitary cells express messenger RNA for the activin-binding protein, follistatin (FS), and rat and bovine pituitary cell cultures secrete FS into the medium. In the present study, a previously validated, heterologous RIA for ovine FS was employed to investigate FS synthesis, secretion, and regulation in cultures...

journal_title：Endocrinology

authors： Farnworth PG,Thean E,Robertson DM,Schwartz J

更新日期：1995-10-01 00:00:00