Desensitization of beta-adrenergic receptors by pheochromocytoma.

abstract：:We have found notable sex difference in peptidylarginine deiminase (EC 3.5.3.15) in rat pituitaries. Pituitaries collected from 3-week to 6-month-old male rats, and those from 3-week-old females showed negligible enzyme activities. The enzyme activity of female pituitaries increased markedly by 2 months, and even furt...

journal_title：Endocrinology

authors： Senshu T,Akiyama K,Nagata S,Watanabe K,Hikichi K

更新日期：1989-06-01 00:00:00

abstract：:Adipose tissue secretes a variety of bioactive signaling molecules, termed adipokines, which regulate numerous biological functions including appetite, energy balance, glucose homeostasis, and inflammation. Chemerin is a novel adipokine that regulates adipocyte differentiation and metabolism by binding to and activati...

journal_title：Endocrinology

authors： Ernst MC,Haidl ID,Zúñiga LA,Dranse HJ,Rourke JL,Zabel BA,Butcher EC,Sinal CJ

更新日期：2012-02-01 00:00:00

abstract：:GnRH neurons are central regulators of reproduction and respond to factors affecting fertility, such as stress. Corticotropin-releasing hormone (CRH) is released during stress response. In brain slices from unstressed controls, CRH has opposite, estradiol-dependent effects on GnRH neuron firing depending on the CRH re...

journal_title：Endocrinology

authors： Phumsatitpong C,De Guzman RM,Zuloaga DG,Moenter SM

更新日期：2020-11-01 00:00:00

abstract：:Thyroid hormone entry into the thymocyte, a thyroid hormone target, was investigated by incubating the cells with tracer amounts of [125I]L-T3. At 37 C T3 uptake was linear with time up to 2 min, and then approached a plateau. The specific T3 uptake, obtained by subtracting the uptake in the presence of excess unlabel...

journal_title：Endocrinology

authors： Centanni M,Mancini G,Andreoli M

更新日期：1989-05-01 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：:Corticotropin-releasing factor (CRF) overexpressing (OE) mice are a genetic model that exhibits features of chronic stress. We investigated whether the adaptive feeding response to a hypocaloric challenge induced by food deprivation is impaired under conditions of chronic CRF overproduction. Food intake response to a ...

journal_title：Endocrinology

authors： Stengel A,Goebel M,Million M,Stenzel-Poore MP,Kobelt P,Mönnikes H,Taché Y,Wang L

更新日期：2009-01-01 00:00:00

abstract：:GnRH, the main regulator of reproduction, is produced in a variety of tissues outside of the hypothalamus, its main site of synthesis and release. We aimed to determine whether GnRH produced in the female rat pituitary and ovaries is involved in the processes leading to ovulation. We studied the expression patterns of...

journal_title：Endocrinology

authors： Schirman-Hildesheim TD,Bar T,Ben-Aroya N,Koch Y

更新日期：2005-08-01 00:00:00

abstract：:The subunit structure of mammalian cytoplasmic progesterone receptors (PR) has been difficult to study because these proteins are subject to in vitro proteolysis; the structure of nuclear PR is unknown. We have now developed an in situ photoaffinity labeling method for PR that permits study of their subunits with mini...

journal_title：Endocrinology

authors： Horwitz KB,Alexander PS

更新日期：1983-12-01 00:00:00

abstract：:The present investigation was undertaken to examine the possible role of cAMP in PTH-stimulated prostaglandin (PG) production in organ cultures of neonatal mouse parietal bones. Cultures were treated with PTH, forskolin, isobutylmethylxanthine (IBMX), and 8-bromo-cAMP (8BrcAMP). We found that similar concentrations of...

journal_title：Endocrinology

authors： Klein-Nulend J,Bowers PN,Raisz LG

更新日期：1990-02-01 00:00:00

abstract：:Axonal degeneration often leads to the death of neuronal cell bodies. Previous studies demonstrated the substantial protective role of 17β-estradiol (E2) in several types of neuron. However, most studies examined cell body protection, and the role of 17β-E2 in axonal degeneration of retinal ganglion cells (RGC) remain...

journal_title：Endocrinology

authors： Kitaoka Y,Munemasa Y,Hayashi Y,Kuribayashi J,Koseki N,Kojima K,Kumai T,Ueno S

更新日期：2011-07-01 00:00:00

abstract：:It is well established that TRH exerts a stimulatory effect on the secretion of both TSH and PRL. Clinically, hyperprolactinemia is usually present in hypothyroid women, but not men. In experimental studies, results vary because of the sexes, and treatments of animals differ. The purpose of this study was to further i...

journal_title：Endocrinology

authors： Pan JT,Chen CW

更新日期：1990-06-01 00:00:00

abstract：:Mutations in the GnRH receptor gene (GNRHR) can result in hypogonadotropic hypogonadism in humans. Unlike most mammals, mice lack a second form of GnRH (GnRH2) and a type 2 GnRH receptor. To determine whether the GnRH receptor is critical at all stages of reproduction and whether this receptor has additional physiolog...

journal_title：Endocrinology

authors： Wu S,Wilson MD,Busby ER,Isaac ER,Sherwood NM

更新日期：2010-03-01 00:00:00

abstract：:Apolipoprotein-E (apoE) has been shown by noncovalent binding and photoaffinity labeling with [125I]T4 to possess a single L-T4 binding site with a K5 of about 3 x 10(7) M-1 and a relative affinity for analogs of L-T4 = D-T4 = rT3 = triiodothyroacetic acid > L-T3. T4 binding was not affected by the flavonoid EMD 21388...

journal_title：Endocrinology

authors： Benvenga S,Cahnmann HJ,Robbins J

更新日期：1993-09-01 00:00:00

abstract：:Maintenance of FSH biosynthesis requires ongoing exposure to pulsatile GnRH. Recent data demonstrate that activin also stimulates FSH biosynthesis. We used a perifused pituitary system to examine regulation of FSH beta mRNA levels by pulsatile GnRH and activin. Hourly pulses of 10 nM GnRH increased FSH beta mRNA level...

journal_title：Endocrinology

authors： Weiss J,Harris PE,Halvorson LM,Crowley WF Jr,Jameson JL

更新日期：1992-09-01 00:00:00

abstract：:Single-minded 1 (SIM1) mutations are associated with obesity in mice and humans. Haploinsufficiency of mouse Sim1 causes hyperphagic obesity with increased linear growth and enhanced sensitivity to a high-fat diet, a phenotype similar to that of agouti yellow and melanocortin 4 receptor knockout mice. To investigate t...

journal_title：Endocrinology

authors： Kublaoui BM,Holder JL Jr,Tolson KP,Gemelli T,Zinn AR

更新日期：2006-10-01 00:00:00

abstract：:Estrogens are essential hormones for the regulation of fertility. Cellular responses to estrogens are mediated by estrogen receptor α (ESR1) and estrogen receptor β (ESR2). In mouse and rat models, disruption of Esr1 causes infertility in both males and females. However, the role of ESR2 in reproductive function remai...

journal_title：Endocrinology

authors： Rumi MAK,Singh P,Roby KF,Zhao X,Iqbal K,Ratri A,Lei T,Cui W,Borosha S,Dhakal P,Kubota K,Chakraborty D,Vivian JL,Wolfe MW,Soares MJ

更新日期：2017-07-01 00:00:00

abstract：:The action of excitatory amino acid agonists on endogenous somatostatin release was examined in primary cultures of rat diencephalic neurons. Increasing concentrations of glutamate stimulated somatostatin release in a dose-dependent manner. Since this effect was decreased by Mg2+, all experiments were performed in Mg2...

journal_title：Endocrinology

authors： Tapia-Arancibia L,Astier H

更新日期：1988-11-01 00:00:00

abstract：:One physiological role for endogenous opioid peptides is to attenuate the release of oxytocin (OT) from the hypothalamo-neurohypophysial system during dehydration and hemorrhage when vasopressin maintains fluid balance and blood pressure. During lactation, OT, which stimulates milk ejection, is released without vasopr...

journal_title：Endocrinology

authors： Hartman RD,Rosella-Dampman LM,Summy-Long JY

更新日期：1987-08-01 00:00:00

abstract：:Estradiol is known to inhibit antigen presentation in the vagina. We report here that TGFbeta mediates the action of estradiol on vaginal antigen presenting cells (APC). When vaginal APC from ovariectomized rats were incubated with increasing concentrations of TGFbeta1 and TGFbeta2 in the presence of ovalbumin-specifi...

journal_title：Endocrinology

authors： Wira CR,Roche MA,Rossoll RM

更新日期：2002-08-01 00:00:00

abstract：:A monoclonal antibody which recognizes the [125I]human GH ([125I]hGH)-binding proteins of rabbit liver has been produced using hybridoma technology. A CB6F1/J mouse was immunized over a period of 82 days with a partially purified GH receptor (GHr) preparation. On the 83rd day, spleen cells from the mouse were fused wi...

journal_title：Endocrinology

authors： Simpson JS,Hughes JP,Friesen HG

更新日期：1983-06-01 00:00:00

abstract：:By acting in the brain, insulin suppresses food intake, whereas neuropeptide Y (NPY) has the opposite effect. Since fasting increases NPY gene expression in the hypothalamic arcuate nucleus (ARC) and also lowers circulating insulin levels, we hypothesized that the anorexiant effect of insulin could result from insulin...

journal_title：Endocrinology

authors： Schwartz MW,Marks JL,Sipols AJ,Baskin DG,Woods SC,Kahn SE,Porte D Jr

更新日期：1991-05-01 00:00:00

abstract：:To examine the physiological effects of norepinephrine (NE) in the paraventricular nucleus of the hypothalamus (PVH) on CRF gene expression and CRF release, NE was microinjected bilaterally into the PVH of conscious rats, and kinetic studies were performed on the levels of POMC messenger RNA (mRNA) in the anterior pit...

journal_title：Endocrinology

authors： Itoi K,Suda T,Tozawa F,Dobashi I,Ohmori N,Sakai Y,Abe K,Demura H

更新日期：1994-11-01 00:00:00

abstract：:Historically, much of the research on health effects of environmental pollutants focused on ascertaining whether compounds were carcinogenic. More recent findings show that environmental contaminants also exert insidious effects by disrupting hormone action. Of particular concern are findings that developmental exposu...

journal_title：Endocrinology

authors： Petersen SL,Krishnan S,Hudgens ED

更新日期：2006-06-01 00:00:00

abstract：:Thyroid hormone (TH) is required for frog metamorphosis, and corticosterone (CORT) increases TH signaling to accelerate metamorphic progression. However, a requirement for CORT in metamorphosis has been difficult to assess prior to the recent development of gene-editing technologies. We addressed this long-standing qu...

journal_title：Endocrinology

authors： Shewade LH,Schoephoerster JA,Patmann MD,Kulkarni SS,Buchholz DR

更新日期：2020-12-01 00:00:00

abstract：:Ghrelin has emerged as putative regulator of an array of endocrine and nonendocrine functions, including cell proliferation. Recently, we provided evidence for the expression of ghrelin in mature, but not in undifferentiated, Leydig cells of rat and human testis. Yet testicular actions of ghrelin, other than modulatio...

journal_title：Endocrinology

authors： Barreiro ML,Gaytan F,Castellano JM,Suominen JS,Roa J,Gaytan M,Aguilar E,Dieguez C,Toppari J,Tena-Sempere M

更新日期：2004-11-01 00:00:00

abstract：:Periodontitis, an inflammatory disease of periodontal tissues, is characterized by excessive alveolar bone resorption. An increase in the receptor activator of nuclear factor-κB ligand (RANKL) to osteoprotegerin (OPG) ratio is thought to reflect the severity of periodontitis. Here, we examined alveolar bone loss in OP...

journal_title：Endocrinology

authors： Koide M,Kobayashi Y,Ninomiya T,Nakamura M,Yasuda H,Arai Y,Okahashi N,Yoshinari N,Takahashi N,Udagawa N

更新日期：2013-02-01 00:00:00

abstract：:We have previously demonstrated that the gonadotropin-mediated inhibition of apoptosis in ovarian granulosa cells is linked to changes in the expression of several cell death-related genes, including members of the bcl-2 gene family (bcl-2, bax, and bcl-x). Recently, the product of the p53 tumor suppressor gene, a pro...

journal_title：Endocrinology

authors： Tilly KI,Banerjee S,Banerjee PP,Tilly JL

更新日期：1995-04-01 00:00:00

abstract：:It has been suggested that ewes carrying the Booroola gene (Fec(B)) consistently ovulate more follicles because they recruit more primordial follicles and/or have a lower rate of atresia. If the former is correct, the pool of follicles would be depleted sooner in Fec(B) animals. We have studied follicular dynamics and...

journal_title：Endocrinology

authors： Gonzalez-Bulnes A,Souza CJ,Campbell BK,Baird DT

更新日期：2004-06-01 00:00:00

abstract：:Recently, we reported that ovariectomy (OVX)-induced FSH hypersecretion can be elicited in hypophysectomized rats bearing renal pituitary allografts isolated from direct hypothalamic intervention. The possible role of the FSH-stimulating protein, activin-B, in eliciting this response was investigated using passive imm...

journal_title：Endocrinology

authors： DePaolo LV,Bald LN,Fendly BM

更新日期：1992-03-01 00:00:00

abstract：:It is assumed that after complete bilateral adrenalectomy (ADX), no adrenal tissue will redevelop and adrenal hormone levels will remain low and unaffected by stress. However, anecdotal observations in animals and in patients suggest that under some unknown circumstances the opposite can occur. Herein, we studied whet...

journal_title：Endocrinology

authors： Gotlieb N,Albaz E,Shaashua L,Sorski L,Matzner P,Rosenne E,Amram B,Benbenishty A,Golomb E,Ben-Eliyahu S

更新日期：2018-01-01 00:00:00