Rat ovarian insulin-like growth factor II gene expression is theca-interstitial cell-exclusive: hormonal regulation and receptor distribution.

abstract：:Transforming growth factor-beta1 (TGF-beta1) is a multifunctional cytokine that is thought to play a major role in the regulation of growth and differentiation of thyroid cells. However, little is known of its detailed mechanisms of action in thyrocytes. We have therefore studied the molecular mechanisms of TGF-beta1 ...

journal_title：Endocrinology

authors： Kang HC,Ohmori M,Harii N,Endo T,Onaya T

更新日期：2001-01-01 00:00:00

abstract：:Insulin-like growth factor (IGF)-1, IGF binding protein (IGFBP)-2, and IGFBP-3 are expressed in the rat brain in regions of neuronal loss by 3 days after hypoxic- ischemic (HI) brain injury and IGF-2 somewhat later. Central administration of rh-IGF-1 after HI injury reduces neuronal loss in vivo. To clarify the mode o...

journal_title：Endocrinology

authors： Guan J,Williams CE,Skinner SJ,Mallard EC,Gluckman PD

更新日期：1996-03-01 00:00:00

abstract：:Previously, a human CYP3A4-transgenic (Tg-CYP3A4) mouse line was reported to exhibit enhanced metabolism of midazolam by cytochrome P450 3A4 (CYP3A4) expressed in small intestine. Here we show that expression of CYP3A4 and murine cyp3a and cyp2b was both age and sex dependent. CYP3A4 was expressed in the livers of mal...

journal_title：Endocrinology

authors： Yu AM,Fukamachi K,Krausz KW,Cheung C,Gonzalez FJ

更新日期：2005-07-01 00:00:00

abstract：:Cultured astroglial cells were found to contain a type II 5'-deiodinase (5'D) activity which was increased by 10(-3) M (Bu)2cAMP but not by 2 X 10(-3) M n-butyrate. 8-Bromo-cAMP (8-Br-cAMP) (10(-3) M) also increased this enzyme activity. Cycloheximide (2 micrograms/ml) inhibited the 8-Br-cAMP effect on 5'D activity. F...

journal_title：Endocrinology

authors： Courtin F,Chantoux F,Pierre M,Francon J

更新日期：1988-09-01 00:00:00

abstract：:Previous descriptions of pulsatile LH release in immature female rats have been mostly inaccurate because of infrequent blood sampling, discontinuous and unbalanced blood replacement procedures, and possibly because of the use of a heterologous RIA. The present study was undertaken to circumvent these problems and to ...

journal_title：Endocrinology

authors： Urbanski HF,Ojeda SR

更新日期：1985-08-01 00:00:00

abstract：:Tear fluid is known to contain many different hormones with relevance for ocular surface homeostasis. We studied the presence and functional role of insulin-like factor 3 (INSL3) and its cognate receptor RXFP2 (relaxin/insulin-like family peptide receptor 2) at the ocular surface and in tears. Expression of human INSL...

journal_title：Endocrinology

authors： Hampel U,Klonisch T,Sel S,Schulze U,Garreis F,Seitmann H,Zouboulis CC,Paulsen FP

更新日期：2013-06-01 00:00:00

abstract：:The roles of alpha- and beta-subunits of human TSH (hTSH) were studied by investigating the inhibitory effects of monoclonal antibodies on the biological activity of hTSH. Four monoclonal antibodies directed toward different epitopes on the beta-subunit (hTSH beta) inhibited completely the receptor binding of hTSH to ...

journal_title：Endocrinology

authors： Endo Y,Tetsumoto T,Nagasaki H,Kashiwai T,Tamaki H,Amino N,Miyai K

更新日期：1990-07-01 00:00:00

abstract：:A [3H]colchicine-binding assay was employed for estimating the relative amounts of soluble and polymerized tubulin present in an individual anterior pituitary lobe. Colchicine binding to these two tubulin pools was time dependent and dose responsive. Scatchard analysis of the binding revealed that [3H]colchicine bound...

journal_title：Endocrinology

authors： Ravindra R,Grosvenor CE

更新日期：1988-01-01 00:00:00

abstract：:We have previously documented that raloxifene enhances the mechanical properties of dog vertebrae independent of changes in bone mass, suggesting a positive effect of raloxifene on material-level mechanical properties. The goal of this study was to determine the separate effects of raloxifene on the material-level mec...

journal_title：Endocrinology

authors： Allen MR,Hogan HA,Hobbs WA,Koivuniemi AS,Koivuniemi MC,Burr DB

更新日期：2007-08-01 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：:The structural elements of 19-norprogestogens which may be essential for binding to progesterone and estradiol-17beta(E2) receptors were investigated in the rabbit uterine cytosol. The kinetic study showed that 19-nor-progestogens are competitive inhibitors of progesterone-receptor (8S) binding and E2-receptor binding...

journal_title：Endocrinology

authors： Tamaya T,Nioka S,Furuta N,Shimura T,Takano N

更新日期：1977-06-01 00:00:00

abstract：:Exposure of adipocytes to glucocorticoid hormones in vitro causes inhibition of glucose transport and metabolsim. Maximal inhibition of glucose oxidations is reduced from 42-50 to 22-25 to 5-8% in young, mature, and senescent rat adipocytes, respectively. Percent values also reflect absolute reductions since basal lev...

journal_title：Endocrinology

authors： Roth GS,Livingston JN

更新日期：1976-09-01 00:00:00

abstract：:A method to prepare suspension cultures of highly viable pinealocytes is described. Pineal glands of neonatal or adult rats can be used; the best yield is obtained from neonatal glands. Morphological examination of the cells indicates that they have a normal, healthy appearance and retain some structures typical of ne...

journal_title：Endocrinology

authors： Buda M,Klein DC

更新日期：1978-10-01 00:00:00

abstract：:The antitumor properties of antibodies to the beta-subunit of hCG (hCG beta) coupled to tetanus toxoid (tt) were studied in hamsters implanted with the BeWo strain of human choriocarcinoma. After active immunization with hCG beta-tt mixed in complete Freund's adjuvant, hamsters synthesized large quantities of antibodi...

journal_title：Endocrinology

authors： Knecht M

更新日期：1980-01-01 00:00:00

abstract：:GnRH neurons were harvested from adult male rats in order to determine if LH or FSH directly altered the modalities of GnRH release and/or cellular GnRH content. Cultures received vehicle, 25 ng/ml LH, 125 ng/ml LH, 25 ng/ml FSH, or 125 ng/ml FSH, and media samples were collected before treatment, during the treatment...

journal_title：Endocrinology

authors： Melrose PA

更新日期：1987-07-01 00:00:00

abstract：:We have investigated the effects of veratridine, a Na+ channel activator, and ouabain, an inhibitor of Na+-K+-ATPase, on short term (1-h) PRL release from primary cultures of rat anterior pituitary cells and from the rat anterior pituitary cell line GH4C1 in culture. Both compounds should increase intracellular Na+. V...

journal_title：Endocrinology

authors： Scammell JG,Dannies PS

更新日期：1983-10-01 00:00:00

abstract：:The short loop feedback effect of PRL was studied in young (4-5 months of age) and old (24-26 months of age) ovariectomized rats after a single iv injection of bovine PRL (bPRL, 500 micrograms/100 g BW) or BSA (500 micrograms/100 g BW). Blood samples were collected via intraatrial cannula every 20 min for assay of PRL...

journal_title：Endocrinology

authors： Sarkar DK,Miki N,Meites J

更新日期：1983-10-01 00:00:00

abstract：:To assess the effect of breast feeding on circulating thyroid hormone levels in the suckling neonate, we examined serum concentrations of T4, T3, and rT3 by RIA in 12- and 15-day-old rat pups fasted for 3 or 6 h before, at, and hourly for 3 or 4 h after suckling. In both age groups, serum T4 levels decreased significa...

journal_title：Endocrinology

authors： Oberkotter LV

更新日期：1988-07-01 00:00:00

abstract：:The hypothalamic peptide, pituitary adenylate cyclase-activating polypeptide (PACAP), can efficiently increase cAMP levels in pituitary cells and release a number of pituitary hormones, suggesting an important physiological role for this peptide in pituitary function. Exposure of GH3 rat pituitary cells to PACAP resul...

journal_title：Endocrinology

authors： Coleman DT,Chen X,Sassaroli M,Bancroft C

更新日期：1996-04-01 00:00:00

abstract：:PRL and placental lactogen (PL) play key roles in maintaining the rodent corpus luteum through pregnancy. Suppressors of cytokine signaling (SOCS) have been shown to decrease cell sensitivity to cytokines, including PRL, and so here we have addressed the issue of whether luteolysis induced by prostaglandin F(2alpha) (...

journal_title：Endocrinology

authors： Curlewis JD,Tam SP,Lau P,Kusters DH,Barclay JL,Anderson ST,Waters MJ

更新日期：2002-10-01 00:00:00

abstract：:Human pituitary prolactin (hPRL) contains a single major component. Upon iodination by a lactoperoxidase procedure approximately 50% of this component remains ulaltered in molecular size and net charge by the criteria of quantitative polyacrylamide gel electrophoresis (PAGE). Aminiotic fluid hPRL contains two componen...

journal_title：Endocrinology

authors： Rogol AD,Chrambach A

更新日期：1975-08-01 00:00:00

abstract：:Parathyroid tissue from patients with hyperparathyroidism (HPT) exhibited reduced immunohistochemical reactivity with monoclonal antiparathyroid antibodies, previously shown to stain intensely the surface of normal human parathyroid cells and to interfere with a receptor mechanism of these cells which is involved in t...

journal_title：Endocrinology

authors： Juhlin C,Klareskog L,Nygren P,Ljunghall S,Gylfe E,Rastad J,Akerström G

更新日期：1988-06-01 00:00:00

abstract：:The aim of this study was to identify and characterize binding sites for inhibin in primary cultures of ovine anterior pituitary cells. Recombinant human 31-kDa inhibin A was iodinated by an optimized lactoperoxidase procedure. Fractionation of the labeled protein by gel filtration chromatography on Sephadex G-100 in ...

journal_title：Endocrinology

authors： Hertan R,Farnworth PG,Fitzsimmons KL,Robertson DM

更新日期：1999-01-01 00:00:00

abstract：:Selenoproteins contain the essential trace element selenium whose deficiency leads to major disorders including cancer, male reproductive system failure, or autoimmune thyroid disease. Up to now, 25 selenoprotein-encoding genes were identified in mammals, but the spatiotemporal distribution, regulation, and function o...

journal_title：Endocrinology

authors： Tanguy Y,Falluel-Morel A,Arthaud S,Boukhzar L,Manecka DL,Chagraoui A,Prevost G,Elias S,Dorval-Coiffec I,Lesage J,Vieau D,Lihrmann I,Jégou B,Anouar Y

更新日期：2011-11-01 00:00:00

abstract：:Pulsatile release of GnRH-1 is critical to stimulate gonadotropes of the anterior pituitary. This secretory pattern seems to be inherent to GnRH-1 neurons, however, the mechanisms underlying such episodical release remain unknown. In monkey nasal explants, the GnRH-1 population exhibits synchronized calcium events wit...

journal_title：Endocrinology

authors： Constantin S,Caraty A,Wray S,Duittoz AH

更新日期：2009-07-01 00:00:00

abstract：:Isolated bone cells are often described according to the presence of PTH- and calcitonin (CT)-sensitive adenylate cyclase activities. Osteoblasts are thought to be cells with PTH-sensitive adenylate cyclase but without CT response, and osteoclasts are thought to be CT-sensitive cells. We have studied the adenylate cyc...

journal_title：Endocrinology

authors： Gutierrez GE,Mundy GR,Katz MS

更新日期：1984-12-01 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

abstract：:The antiapoptotic molecule Fas-associated death domain-like IL-1beta-converting enzyme inhibitory protein (FLIP) inhibits Fas-mediated apoptosis by blocking activation of caspase-8. We previously showed that expression of transgenic FLIP on thyroid epithelial cells (TECs) of DBA/1 and CBA/J mice promoted earlier resol...

journal_title：Endocrinology

authors： Fang Y,Braley-Mullen H

更新日期：2008-07-01 00:00:00

abstract：:Estradiol (E(2)) rapidly and strongly induces vascular endothelial growth factor (VEGF) transcription in uterine endometrial epithelial cells in vivo. We have shown that this is mediated by both the estrogen receptor-alpha and hypoxia-inducible factor (HIF)-1alpha. By contrast, E(2) induces little or no VEGF expressio...

journal_title：Endocrinology

authors： Molitoris KH,Kazi AA,Koos RD

更新日期：2009-12-01 00:00:00

abstract：:Hypoxia-inducible factor-1 (HIF-1) is a decisive element for the transcriptional regulation of many genes expressed in hypoxic conditions. In vascular smooth muscle cells, the vasoactive hormone angiotensin II (Ang II) is a very potent inducer and activator of HIF-1. As opposed to hypoxia, which induces HIF-1alpha by ...

journal_title：Endocrinology

authors： Lauzier MC,Pagé EL,Michaud MD,Richard DE

更新日期：2007-08-01 00:00:00