Attenuation by a 5 alpha-reductase inhibitor of the activational effect of testosterone propionate on penile erections in castrated male rats.

abstract：:To understand the physiological role of ghrelin, it is crucial to study both the actions of ghrelin and the regulation of ghrelin secretion. Although ghrelin actions have been extensively revealed, the direct factors regulating ghrelin secretion by ghrelin-producing cells (X/A-like cells), however, is not fully unders...

journal_title：Endocrinology

authors： Iwakura H,Ariyasu H,Hosoda H,Yamada G,Hosoda K,Nakao K,Kangawa K,Akamizu T

更新日期：2011-07-01 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：:Glucagon-like peptide-1 (GLP-1) enhances insulin biosynthesis and secretion as well as transcription of the insulin, GLUT2 and glucokinase genes. The latter are also regulated by the PDX-1 homeoprotein. We investigated the possibility that GLP-1 may be having its long-term pleiotropic effects through a hitherto unknow...

journal_title：Endocrinology

authors： Wang X,Cahill CM,Piñeyro MA,Zhou J,Doyle ME,Egan JM

更新日期：1999-10-01 00:00:00

abstract：:In the present study we have examined the effects of FSH, forskolin, and (Bu)2cAMP on messenger RNA (mRNA) levels for all known subunits of cAMP-dependent protein kinase in rat Sertoli cells, using newly developed complementary DNA (cDNA) probes. mRNAs for the three regulatory subunits [RI alpha, RII51, (RII beta), an...

journal_title：Endocrinology

authors： Oyen O,Sandberg M,Eskild W,Levy FO,Knutsen G,Beebe S,Hansson V,Jahnsen T

更新日期：1988-06-01 00:00:00

abstract：:Somatostatin-like immunoreactivity (SRIF-LI) has previously been demonstrated immunohistochemically in rat thyroid parafollicular cells. Studies were therefore performed to determine whether SRIF-LI was present in a transplantable medullary carcinoma of the thyroid (MCT) in the WAG/Rij strain of rat. SRIF-LI was found...

journal_title：Endocrinology

authors： Berelowitz M,Cibelius M,Szabo M,Frohman LA,Epstein S,Bell NH

更新日期：1980-11-01 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：:Aldosterone plays a major role in regulating sodium and potassium flux in epithelial tissues such as kidney and colon. Recent evidence suggests that serum- and glucocorticoid-regulated kinase (SGK) is induced by aldosterone and acts as a key mediator of aldosterone action in epithelial tissues. Induction of SGK messen...

journal_title：Endocrinology

authors： Bhargava A,Fullerton MJ,Myles K,Purdy TM,Funder JW,Pearce D,Cole TJ

更新日期：2001-04-01 00:00:00

abstract：:Antiestrogens such as tamoxifen are the mainstay of treatment for estrogen receptor-positive breast cancer. However, their effectiveness is limited by the development of endocrine resistance, allowing tumor regrowth and progression. Importantly, in vitro MCF7 cell models of acquired tamoxifen resistance (TamR cells) d...

journal_title：Endocrinology

authors： Taylor KM,Vichova P,Jordan N,Hiscox S,Hendley R,Nicholson RI

更新日期：2008-10-01 00:00:00

abstract：:In mammals, adrenal medulla chromaffin cells constitute a fundamental component of the sympathetic nervous system outflow, producing most of the circulating adrenaline. We recently found that the rhesus monkey adrenal gland expresses several genes in a 24-h rhythmic pattern, including TH (the rate-limiting enzyme in c...

journal_title：Endocrinology

authors： Lemos DR,Goodspeed L,Tonelli L,Antoch MP,Ojeda SR,Urbanski HF

更新日期：2007-12-01 00:00:00

abstract：:[131I]Thyroglobulin [( 131I]Tg), prepared by either enzymatic iodination of human goiter Tg in vitro or isolation from the thyroids of rats previously injected with 131I, was digested with a solubilized enzyme mixture prepared from purified hog thyroid lysosomes. The digestion was performed at 37 C for 24 h under nitr...

journal_title：Endocrinology

authors： Tokuyama T,Yoshinari M,Rawitch AB,Taurog A

更新日期：1987-08-01 00:00:00

abstract：:Recent studies have demonstrated that passive immunization of neonatal rats to GRF inhibited their somatic growth through the suppression of GH secretion. In this study, we investigated the changes in pituitary GRF receptor (GRFR) expression in GRF antibody (GRF-ab) treated rats. Neonatal rats were treated from day 1 ...

journal_title：Endocrinology

authors： Horikawa R,Hellmann P,Cella SG,Torsello A,Day RN,Muller EE,Thorner MO

更新日期：1996-06-01 00:00:00

abstract：:Women with type 1 diabetes are subfertile. Diabetes negatively affects pregnancy by causing early miscarriage and poor prenatal outcomes. In this study we examine consequences of maternal type 1 diabetes on early embryo development, metabolic gene expression, and the pattern of insulin receptor (IR) and IGF-I receptor...

journal_title：Endocrinology

authors： Ramin N,Thieme R,Fischer S,Schindler M,Schmidt T,Fischer B,Navarrete Santos A

更新日期：2010-09-01 00:00:00

abstract：:To determine if the inhibitory effects of glucocorticoids on GnRH-stimulated secretion of LH observed in male rats in vivo are exerted directly on the pituitary, dispersed pituitary cells from adult male rats were treated with 60 or 600 ng/ml cortisol (F) or corticosterone (B) during one or two 48-h incubations. Contr...

journal_title：Endocrinology

authors： Suter DE,Schwartz NB

更新日期：1985-09-01 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：:Studying the mechanisms for the complex pathogenesis of polycystic ovary syndrome (PCOS) requires animal models with endocrine, reproductive, and metabolic features of the syndrome. Hyperandrogenism seems to be a central factor in PCOS, leading to anovulation and insulin resistance. In female rats, continuous administ...

journal_title：Endocrinology

authors： Maliqueo M,Sun M,Johansson J,Benrick A,Labrie F,Svensson H,Lönn M,Duleba AJ,Stener-Victorin E

更新日期：2013-01-01 00:00:00

abstract：:The calbindins are Ca-binding proteins whose expression is regulated by 1,25-dihydroxyvitamin D3, the active metabolite of vitamin D3. The calbindins are found in high amounts in the proximal intestine (calbindin-D-9k) and the kidney (calbindin-D-28k), and they are thought to play a role in Ca transport by these tissu...

journal_title：Endocrinology

authors： Armbrecht HJ,Boltz M,Strong R,Richardson A,Bruns ME,Christakos S

更新日期：1989-12-01 00:00:00

abstract：:In seasonal species, various physiological processes including reproduction are organized by photoperiod via melatonin, but the mechanisms of melatonin action are still unknown. In birds, the peptide gonadotropin-inhibiting hormone (GnIH) has been shown to have inhibitory effects on reproductive activity and displays ...

journal_title：Endocrinology

authors： Revel FG,Saboureau M,Pévet P,Simonneaux V,Mikkelsen JD

更新日期：2008-03-01 00:00:00

abstract：:We have investigated the effects of hCG and estradiol on the time course of the inhibition of C17-20-lyase and the depletion of the estradiol cytosol receptor in testicular tissue of male rats. In hCG-treated animals the first significant decrease in C17-20-lyase activity was observed 16 h after injection of the hormo...

journal_title：Endocrinology

authors： Brinkmann A,Leemborg I,Rommerts F,van der Molen H

更新日期：1982-05-01 00:00:00

abstract：:Recently, a subset of neurons was identified in the arcuate nucleus of the hypothalamus that colocalize three neuropeptides, kisspeptin, neurokinin B, and dynorphin, each of which has been shown to play a critical role in the central control of reproduction. Growing evidence suggests that these neurons, abbreviated as...

journal_title：Endocrinology

authors： Lehman MN,Coolen LM,Goodman RL

更新日期：2010-08-01 00:00:00

abstract：:In previous studies, we have shown that calcitonin gene-related peptide (CGRP) acutely inhibits 45Ca2+ uptake in osteoblastic UMR106 cells, and we have proposed that ATP-sensitive potassium (K(ATP)) channels are involved in mediating this action of CGRP. To directly test this proposed mechanism, we have now examined t...

journal_title：Endocrinology

authors： Kawase T,Burns DM

更新日期：1998-08-01 00:00:00

abstract：:Hereditary vitamin D-resistant rickets (HVDRR) is an autosomal recessive disease caused by mutations in the vitamin D receptor (VDR). We studied a young Saudi Arabian girl who exhibited the typical clinical features of HVDRR, but without alopecia. Analysis of her VDR gene revealed a homozygous T to C mutation in exon ...

journal_title：Endocrinology

authors： Malloy PJ,Xu R,Peng L,Peleg S,Al-Ashwal A,Feldman D

更新日期：2004-11-01 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：:1Alpha,25-dihydroxyvitamin D3 (1,25-(OH)2D3) is a potent mediator of differentiation and maintenance of specific functions of osteoblasts. To detect novel targets for 1,25-(OH)2D3 action, we applied differential display PCR to human fetal osteoblast-like cells and identified the human analog of murine cystein rich pro...

journal_title：Endocrinology

authors： Schütze N,Lechner A,Groll C,Siggelkow H,Hüfner M,Köhrle J,Jakob F

更新日期：1998-04-01 00:00:00

abstract：:Ovarian follicular development is initiated by FSH secreted from the pituitary gland. The FSH-induced follicular development involves granulosa cell proliferation and differentiation. We demonstrated that a growth factor of epidermal growth factor (EGF) family epiregulin was rapidly induced in the primary culture of r...

journal_title：Endocrinology

authors： Sekiguchi T,Mizutani T,Yamada K,Yazawa T,Kawata H,Yoshino M,Kajitani T,Kameda T,Minegishi T,Miyamoto K

更新日期：2002-12-01 00:00:00

abstract：:The circadian rhythm of glucocorticoids affects diverse physiological systems, including stress responses and the coordination of rhythmic functions in peripheral and central tissues. Circadian clocks are considered to be important coordinators of glucocorticoid release and loss of the core clock component Brain and m...

journal_title：Endocrinology

authors： Dumbell R,Leliavski A,Matveeva O,Blaum C,Tsang AH,Oster H

更新日期：2016-11-01 00:00:00

abstract：:We previously found that the sustained rise in active sodium transport by the toad urinary bladder after exposure to insulin is associated with the synthesis of a membrane protein with a molecular weight of 25,000. Studying the effects of insulin on the incorporation of uridine into RNA of epithelial cells of the blad...

journal_title：Endocrinology

authors： Cobb MH,Yang CP,Scott WN

更新日期：1981-12-01 00:00:00

abstract：:Maternal obesity at conception increases the risk of offspring obesity, thus propagating an intergenerational vicious cycle. Male offspring born to obese dams are hyperresponsive to high fat-diets, gaining greater body weight, fat mass, and additional metabolic sequelae compared to lean controls. In this report, we id...

journal_title：Endocrinology

authors： Shankar K,Zhong Y,Kang P,Lau F,Blackburn ML,Chen JR,Borengasser SJ,Ronis MJ,Badger TM

更新日期：2011-11-01 00:00:00

abstract：:A 50-70% depletion in the anterior pituitary concentration of PRL occurred within 5 min of electrical stimulation of a single abdominal mammary nerve of urethane-anesthetized lactating rats previously nonsuckled for 6-8 h. The stimulus parameters were: 1-msec pulses, 10-20/sec at 5-30 V applied 5 sec on and 10 sec off...

journal_title：Endocrinology

authors： Mena F,Pacheco P,Grosvenor CE

更新日期：1980-02-01 00:00:00

abstract：:Glutamate (Glu) is the most prevalent excitatory neurotransmitter in the brain and has been implicated in the regulation of GnRH secretion in several mammalian species, including the monkey. To investigate the neuroanatomical basis for Glu-GnRH interactions, we performed an immunocytochemical study at both the light a...

journal_title：Endocrinology

authors： Goldsmith PC,Thind KK,Perera AD,Plant TM

更新日期：1994-02-01 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