Human chorionic gonadotropin induces nestin expression in endothelial cells of the ovary via vascular endothelial growth factor signaling.

abstract：:To test the hypothesis that angiotensin (Ang) II induces profibrotic gene expression through endogenous aldosterone, we measured the effect of 4 h infusion (600 ng/kg x min) of Ang II on tissue mRNA expression of plasminogen activator inhibitor 1 (PAI-1), preproendothelin-1 (ppET-1), TGF-beta, and osteopontin in wild-...

journal_title：Endocrinology

authors： Luther JM,Wang Z,Ma J,Makhanova N,Kim HS,Brown NJ

更新日期：2009-05-01 00:00:00

abstract：:Continuously superfused rat anterior pituitary cells were used to study the effects of prostaglandins (PGs) and a thromboxane (TX) on the secretion of TSH. Indomethacin, a blocker of PG synthetase, inhibited the amount of TSH secreted in response to TRH. This reduction in TRH responsiveness was overcome by administrat...

journal_title：Endocrinology

authors： Wright KC,Hedge GA

更新日期：1981-08-01 00:00:00

abstract：:Kisspeptin, encoded by the Kiss1 gene, binds to a specific G protein-coupled receptor (kisspeptin1 receptor) to regulate the central reproductive axis. Kisspeptin has also been reported to be expressed in peripheral tissues, including the testes. However, factors regulating testicular kisspeptin and its role in reprod...

journal_title：Endocrinology

authors： Salehi S,Adeshina I,Chen H,Zirkin BR,Hussain MA,Wondisford F,Wolfe A,Radovick S

更新日期：2015-04-01 00:00:00

abstract：:Women with polycystic ovary syndrome (PCOS) and hyperandrogenism have altered hormone levels and suffer from ovarian dysfunction leading to subfertility. We have attempted to generate a model of hyperandrogenism by feeding mice chow supplemented with dehydroepiandrosterone (DHEA), an androgen precursor that is often e...

journal_title：Endocrinology

authors： Jimenez PT,Frolova AI,Chi MM,Grindler NM,Willcockson AR,Reynolds KA,Zhao Q,Moley KH

更新日期：2013-12-01 00:00:00

abstract：:Recombinant interleukin-1 alpha and -beta (Il-1 alpha and -beta) have been evaluated for their abilities to stimulate ACTH and catecholamine secretion in the intact adult male rat. Additionally, the role of adrenergic-dependent pathways in mediating Il-1-induced ACTH release has been assessed. The iv or intracerebrove...

journal_title：Endocrinology

authors： Rivier C,Vale W,Brown M

更新日期：1989-12-01 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：:The ability of FSH to stimulate the activity of ornithine decarboxylase (ODC) in the ovary of the immature rat and cycling hamster has been examined using specific antisera to gonadotropins. The stimulatory effect of FSH on ODC activity in the ovary of the immature rat was abolished when LH antiserum was administered ...

journal_title：Endocrinology

authors： Sheela Rani CS,Moudgal NR

更新日期：1979-05-01 00:00:00

abstract：:Corticosteroids stimulate and insulin inhibits energy acquisition (food intake); conversely, corticosteroids inhibit and insulin stimulates energy storage (body weight gain). Thus, together these hormones mediate long-term energy balance. This study tested whether the stimulatory action of corticosteroids on food inta...

journal_title：Endocrinology

authors： Santana P,Akana SF,Hanson ES,Strack AM,Sebastian RJ,Dallman MF

更新日期：1995-05-01 00:00:00

abstract：:The serum pharmacokinetics of recombinant human inhibin A (rh-inhibin A) and rh-activin A were examined in immature female Sprague Dawley-derived rats after iv and sc injection of the drugs. After iv administration of rh-inhibin A (120 micrograms/kg), the serum concentrations were described by a biexponential equation...

journal_title：Endocrinology

authors： Woodruff TK,Krummen LA,Chen S,DeGuzman G,Lyon R,Baly DL,Allison DE,Garg S,Wong WL,Hebert N

更新日期：1993-02-01 00:00:00

abstract：:The population of LHRH neurons was examined in young and middle-aged female rats at two different time points associated with the LH surge on proestrus. More immunopositive LHRH neurons were detected in the brains of young but not middle-aged females killed on the evening of proestrus (1830-2030 h) compared with those...

journal_title：Endocrinology

authors： Rubin BS,King JC

更新日期：1994-01-01 00:00:00

abstract：:cAMP has been shown to mediate the response of the parathyroid gland to a number of agonists and appears to take part in the regulation of this gland by divalent cations as well. We have studied the effects of the concentrations of free magnesium (Mg+2) and ionic calcium (Ca+2) on the kinetic properties of normal porc...

journal_title：Endocrinology

authors： Oldham SB,Rude RK,Molloy CT,Lipson LG

更新日期：1984-11-01 00:00:00

abstract：:Estrogen has wide-ranging and complex effects on the reproductive axis, which are often difficult to interpret from in vivo studies. Estrogen negatively regulates tonic GnRH synthesis and also plays a pivotal role in the positive regulation of GnRH necessary for the preovulatory surge. To dissect the mechanisms by whi...

journal_title：Endocrinology

authors： Roy D,Angelini NL,Belsham DD

更新日期：1999-11-01 00:00:00

abstract：:Five studies are reported which were designed to define the effects of an estrogen and a progestogen, alone and in combination, on tissue concentrations (heart, kidney, and liver) of two trace metals (zinc, copper) and four bulk cations (sodium, potassium, calcium, magnesium). Male rats received Premarin (0.08 mg) and...

journal_title：Endocrinology

authors： Yunice AA,Lindeman RD

更新日期：1975-11-01 00:00:00

abstract：:We demonstrated previously that glucocorticoids differentially affect the levels of the two pituitary gonadotropins, LH and FSH, both in vivo and in vitro. In vivo, the effect of glucocorticoids is GnRH independent, indicating a direct action on the gonadotrope, and it leads to selective up-regulation of the pituitary...

journal_title：Endocrinology

authors： Kilen SM,Szabo M,Strasser GA,McAndrews JM,Ringstrom SJ,Schwartz NB

更新日期：1996-09-01 00:00:00

abstract：:Topiramate (TPM) treatment has been shown to reduce adiposity in humans and rodents. The reduction in adiposity is related to decreased food intake and increased energy expenditure. However, the molecular mechanisms through which TPM induces weight loss are contradictory and remain to be clarified. Whether TPM treatme...

journal_title：Endocrinology

authors： Caricilli AM,Penteado E,de Abreu LL,Quaresma PG,Santos AC,Guadagnini D,Razolli D,Mittestainer FC,Carvalheira JB,Velloso LA,Saad MJ,Prada PO

更新日期：2012-09-01 00:00:00

abstract：:Little is known about the mechanisms of action of polypeptide hormones on chromatin structure and nuclear function. We have employed micrococcal nuclease to examine the effect of TSH on the accessibility of DNA in thyroid nuclei. Brief digestion of nuclear suspensions with 0.05-0.2 U/ml micrococcal nuclease at 26-28 C...

journal_title：Endocrinology

authors： Abe Y,Cooper E,Spaulding SW

更新日期：1982-06-01 00:00:00

abstract：:To assess the consequences of prolonged exposure to elevated levels of LH/human chorionic gonadotropin (hCG) in the female, we developed a transgenic (TG) mouse model (hCGbeta+) that overexpresses the hCGbeta-subunit cDNA. Because of the promoter used, ubiquitin C, the transgene is expressed in multiple tissues, inclu...

journal_title：Endocrinology

authors： Rulli SB,Kuorelahti A,Karaer O,Pelliniemi LJ,Poutanen M,Huhtaniemi I

更新日期：2002-10-01 00:00:00

abstract：:Local release of TGF-beta during times of high bone turnover leads to elevated levels within the bone microenvironment, and we have shown that TGF-beta suppresses osteoclast apoptosis. Therefore, understanding the influences of TGF-beta on bone resorbing osteoclasts is critical to the design of therapies to reduce exc...

journal_title：Endocrinology

authors： Ruan M,Pederson L,Bradley EW,Bamberger AM,Oursler MJ

更新日期：2010-04-01 00:00:00

abstract：:In the present study we examined the mechanisms involved in the activation of the hypothalamo-pituitary-adrenal (HPA) axis after administration of the glucose analog 2-deoxyglucose (2-DG), which inhibits intracellular glucose use. Adult male rats were injected with either 2-DG (400 mg/kg body wt ip) or vehicle and wer...

journal_title：Endocrinology

authors： Weidenfeld J,Corcos AP,Wohlman A,Feldman S

更新日期：1994-04-01 00:00:00

abstract：:The present experiments examined the relationship between cholera toxin and TSH stimulation of the adenylate cyclase system in bovine thyroid tissue. Preincubation of thyroid slices for 20 min at 4 C with a maximal concentration of cholera toxin (100 microgram/ml) did not impair the subsequent stimulation of cAMP by s...

journal_title：Endocrinology

authors： Holmes SD,Titus G,Chou M,Field JB

更新日期：1980-12-01 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：:IGF1-a small, single-chain, secreted peptide in mammals-is essential for normal somatic growth and is involved in a variety of other physiological and pathophysiological processes. IGF1 expression appears to be controlled by several different signaling mechanisms in mammals, with GH playing a key role by activating an...

journal_title：Endocrinology

authors： Rotwein P

更新日期：2018-06-01 00:00:00

abstract：:The uterotropic response of the uterus to 17β-estradiol (E2) is genetically controlled, with marked variation observed depending on the mouse strain studied. Previous genetic studies from our laboratory using inbred mice that are high (C57BL6/J; B6) or low (C3H/HeJ; C3H) responders to E2 led to the identification of q...

journal_title：Endocrinology

authors： Wall EH,Case LK,Hewitt SC,Nguyen-Vu T,Candelaria NR,Teuscher C,Lin CY

更新日期：2014-08-01 00:00:00

abstract：:Fetal adrenal steroid hydroxylase activity and messenger RNA (mRNA) expression increases concurrent with the preterm rise in fetal plasma cortisol during late gestation in sheep. By placing bilateral lesions of the fetal paraventricular nuclei (PVN) we have previously demonstrated that the fetal PVN is necessary for t...

journal_title：Endocrinology

authors： Myers DA,McDonald TJ,Nathanielsz PW

更新日期：1992-07-01 00:00:00

abstract：:Corticotropin-releasing factor-like immunoreactivity (CRF) and plasma ACTH were measured in rats bearing bilateral lesions of the paraventricular nucleus (PVN). Four to 6 days after stereotaxic surgery, CRF-like immunoreactivity content of the stalk-median eminence was reduced by 87-90% and the ACTH response to a 3-mi...

journal_title：Endocrinology

authors： Bruhn TO,Plotsky PM,Vale WW

更新日期：1984-01-01 00:00:00

abstract：:Desensitization and internalization of G protein-coupled receptors can be mediated by phosphorylation within the C-terminal tail, facilitating beta-arrestin binding and targeting the receptor for internalization. Type II GnRH receptors (GnRH-Rs) show such regulation, but type I GnRH-Rs lack C-tails and are not rapidly...

journal_title：Endocrinology

authors： Caunt CJ,Hislop JN,Kelly E,Matharu AL,Green LD,Sedgley KR,Finch AR,McArdle CA

更新日期：2004-08-01 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：:Rat sexual maturation is preceded by a reduction of the interpulse interval (IPI) of GnRH neurosecretion. This work aims at studying disruption of that neuroendocrine event in females after early exposure to a very low dose of bisphenol A (BPA), a ubiquitous endocrine disrupting chemical. Female rats were exposed to v...

journal_title：Endocrinology

authors： Franssen D,Gérard A,Hennuy B,Donneau AF,Bourguignon JP,Parent AS

更新日期：2016-05-01 00:00:00

abstract：:Congenital adrenal hyperplasia is a group of common inherited disorders leading to glucocorticoid deficiency. Most cases are caused by 21-hydroxylase deficiency (21OHD). The systemic consequences of imbalanced steroid hormone biosynthesis due to severe 21OHD remains poorly understood. Therefore, we developed a zebrafi...

journal_title：Endocrinology

authors： Eachus H,Zaucker A,Oakes JA,Griffin A,Weger M,Güran T,Taylor A,Harris A,Greenfield A,Quanson JL,Storbeck KH,Cunliffe VT,Müller F,Krone N

更新日期：2017-12-01 00:00:00

abstract：:Although renal hypertrophy occurs rapidly after uninephrectomy, restoring the majority of renal excretory function, it remains unknown whether similar compensatory mechanisms maintain 1,25-dihydroxyvitamin D production (and calcium homeostasis). To address this issue we compared plasma calcitriol levels and renal 25-h...

journal_title：Endocrinology

authors： Almond JR,Bales CW,Lobaugh B,Klotman PE,Drezner MK

更新日期：1989-05-01 00:00:00