Roles of 11beta-hydroxysteroid dehydrogenase in fish spermatogenesis.

abstract：:The administration of testosterone via Silastic capsules has been shown previously to maintain advanced spermatid number quantitatively in intact rats in which LH but not FSH was suppressed, but not in hypophysectomized rats, indicating that pituitary factors in addition to LH are required for the quantitative mainten...

journal_title：Endocrinology

authors： Awoniyi CA,Zirkin BR,Chandrashekar V,Schlaff WD

更新日期：1992-06-01 00:00:00

abstract：:To investigate GH's role in diabetic end organ damage, experimental diabetes was induced with streptozotocin (STZ) in bovine GH (bGH) or bGH antagonist transgenic mice and in their nontransgenic (NTG) litter mates. Body growth, blood glucose, serum insulin-like growth factor-I levels, liver GH receptor (GHR) binding, ...

journal_title：Endocrinology

authors： Chen NY,Chen WY,Bellush L,Yang CW,Striker LJ,Striker GE,Kopchick JJ

更新日期：1995-02-01 00:00:00

abstract：:The development of white adipose tissue involves both the hypertrophy of existing adipocytes and the proliferation and differentiation of preadipocytes. Adipogenic differentiation is inhibited by TGFβ signaling through Smad2/3, and IGF binding protein-3 (IGFBP-3) is also known to activate Smad2/3 signaling in some cel...

journal_title：Endocrinology

authors： de Silva HC,Firth SM,Twigg SM,Baxter RC

更新日期：2012-10-01 00:00:00

abstract：:The regulation of cholecystokinin octapeptide (CCK-8) secretion was studied using a fetal cerebral cortical cell culture system. After 2-3 weeks in culture, the cells were utilized for short-term release experiments. CCK-8 was measured by RIA and its identity was confirmed by HPLC. Depolarization of the cells with K+ ...

journal_title：Endocrinology

authors： Abucham J,Reichlin S

更新日期：1991-12-01 00:00:00

abstract：:Brown adipose tissue (BAT) thermogenesis is activated by the sympathetic nervous system. BAT responses to norepinephrine are blunted in hypothyroidism and are rapidly restored by thyroid hormone. We examined in rats the effects of thyroid hormone on BAT beta 1- and beta 2-adrenergic receptors (AR) expression and capac...

journal_title：Endocrinology

authors： Rubio A,Raasmaja A,Maia AL,Kim KR,Silva JE

更新日期：1995-08-01 00:00:00

abstract：:The initial steps involved in mediating the transduction of PTH signal via its G protein-coupled receptors are well understood and occur through the activation of cAMP and phospholipase C pathways. However, the cellular and molecular mechanisms for subsequent receptor desensitization are less well understood. Recently...

journal_title：Endocrinology

authors： Miles RR,Sluka JP,Santerre RF,Hale LV,Bloem L,Boguslawski G,Thirunavukkarasu K,Hock JM,Onyia JE

更新日期：2000-01-01 00:00:00

abstract：:To examine the relationship between the expression of insulin-like growth factor (IGF)-binding protein-2 (IGFBP-2) and cell growth in a cell type with a defined IGF/IGFBP system, an ovine IGFBP-2 complementary DNA was overexpressed in C6 glioma cells. C6 cells produce IGFBP-3, IGFBP-4, a negligible amount of IGFBP-2, ...

journal_title：Endocrinology

authors： Bradshaw SL,D'Ercole AJ,Han VK

更新日期：1999-02-01 00:00:00

abstract：:Male rats of five different strains (Simonsen albino, Wistar, Long-Evans, Holtzman Sprague-Dawley, and Charles River Sprague-Dawley) were tested for their response to the U.S. Biochemical Corp. Remington low iodine diet containing 15-18 microgram I/kg. Measurements made after the diet had been fed for 28-30 days indic...

journal_title：Endocrinology

authors： Okamura K,Taurog A,Krulich L

更新日期：1981-08-01 00:00:00

abstract：:Our research programs required the preparation of hypophysectomized and orchidectomized rhesus monkeys. This afforded us the possibility to characterize and compare levels of the gonadotropin and inhibin subunit mRNAs in pituitaries from intact and castrate monkeys. Eighteen adult male monkeys, four of which had been ...

journal_title：Endocrinology

authors： Attardi B,Marshall GR,Zorub DS,Winters SJ,Miklos J,Plant TM

更新日期：1992-03-01 00:00:00

abstract：:Endocrine cells isolated from the anterior pituitary fire intracellular Ca2+ ([Ca2+]i) transients due to voltage-gated Ca2+ entry. However, the patterns of [Ca2+]i transients within the glandular parenchyma of the anterior pituitary are unknown. Here we describe, using real-time confocal laser microscopy, several spon...

journal_title：Endocrinology

authors： Bonnefont X,Fiekers J,Creff A,Mollard P

更新日期：2000-03-01 00:00:00

abstract：:The cell of origin of human null cell pituitary adenomas is disputed. Although these tumors, by definition, do not produce any of the anterior pituitary hormones in vivo, they have been shown to express gonadotropin subunit genes, release gonadotropin hormones in vitro, and express the gonadotroph-associated transcrip...

journal_title：Endocrinology

authors： Kumar TR,Graham KE,Asa SL,Low MJ

更新日期：1998-07-01 00:00:00

abstract：:PRL has been reported to exist as a number of mol wt and charge variants. We have attempted to determine the relationships among the charge and lower mol wt variants by two-dimensional gel analysis of pituitary and pituitary cell extracts. Silver-stained gels of the extracts showed three major charge isoforms of 24,00...

journal_title：Endocrinology

authors： Oetting WS,Walker AM

更新日期：1985-10-01 00:00:00

abstract：:The role of GH during the ovine estrous cycle is unknown. In this study, pituitary GH mRNA and peripheral serum GH levels were measured in ewes representing the major phases of the estrous cycle. There was a significant rise (P less than 0.05) in both GH mRNA and serum GH concentrations during the follicular phase of ...

journal_title：Endocrinology

authors： Landefeld TD,Suttie JM

更新日期：1989-09-01 00:00:00

abstract：:Specific triiodothyronine receptor activity has been detected in rat lung nuclei isolated by Triton X-100, which was sensitive to pH and exhibited temperature-dependent association kinetics. This activity represented a single order of high affinity binding sites, with an apparent dissociation constant for 3,3',5-triio...

journal_title：Endocrinology

authors： Morishige WK,Guernsey DL

更新日期：1978-05-01 00:00:00

abstract：:Previous studies have shown that aldosterone plus salt loading cause cardiac hypertrophy in rats in vivo, and that in vitro, both aldosterone and glucose stimulate fibroblast growth. The present studies examined the effects of adrenal steroids via mineralocorticoid and glucocorticoid receptors (MR and GR) on [3H]leuci...

journal_title：Endocrinology

authors： Sato A,Funder JW

更新日期：1996-10-01 00:00:00

abstract：:The plasma osteocalcin (OC) concentration correlates with histological parameters of bone formation and has been used as an index of osteoblast activity. Although the rate of OC synthesis is likely to be a major determinant of the plasma OC level, the contribution of other processes, for example, OC plasma clearance, ...

journal_title：Endocrinology

authors： Fortune CL,Farrugia W,Tresham J,Scoggins BA,Wark JD

更新日期：1989-06-01 00:00:00

abstract：:Serum levels of progesterone in hysterectomized gilts were determined to evaluate the effects of exogenous 17 beta-estradiol (17 beta-E2) on the secretory activity of aging corpora lutea. Gilts were hysterectomized on day 6 of the estrous cycle and given im injections of 17 beta-E2 to mimic blood levels of endogenous ...

journal_title：Endocrinology

authors： Musah AI,Ford JJ,Anderson LL

更新日期：1984-11-01 00:00:00

abstract：:We investigated the effects of acute (24-h) peroxisome proliferator-activated receptor (PPAR)alpha activation by WY14,643 (pirinixic acid) treatment on glucose-stimulated insulin secretion (GSIS) during pregnancy, in the rat, in relation to insulin sensitivity. GSIS after iv glucose challenge (500 mg/kg) was increased...

journal_title：Endocrinology

authors： Sugden MC,Greenwood GK,Smith ND,Holness MJ

更新日期：2003-01-01 00:00:00

abstract：:We recently described a preclinical model of Graves' orbitopathy (GO), induced by genetic immunization of eukaryotic expression plasmid encoding human TSH receptor (TSHR) A-subunit by muscle electroporation in female BALB/c mice. The onset of orbital pathology is characterized by muscle inflammation, adipogenesis, and...

journal_title：Endocrinology

authors： Berchner-Pfannschmidt U,Moshkelgosha S,Diaz-Cano S,Edelmann B,Görtz GE,Horstmann M,Noble A,Hansen W,Eckstein A,Banga JP

更新日期：2016-04-01 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：:Androgen-sensitive prostate cancer cells turn androgen resistant through complex mechanisms that involve dysregulation of apoptosis. We investigated the role of antiapoptotic Bcl-xL in the progression of prostate cancer as well as the interactions of Bcl-xL with proapoptotic Bax and Bak in androgen-dependent and -inde...

journal_title：Endocrinology

authors： Castilla C,Congregado B,Chinchón D,Torrubia FJ,Japón MA,Sáez C

更新日期：2006-10-01 00:00:00

abstract：:Peroxisome proliferator activated receptor (PPARγ) is a nuclear receptor transcription factor that regulates adipogenesis and energy homeostasis. Recent studies suggest PPARγ may mediate some of its metabolic effects through actions in the brain. We used a Cre-recombinase-dependent (using NestinCre) conditionally acti...

journal_title：Endocrinology

authors： Stump M,Guo DF,Lu KT,Mukohda M,Cassell MD,Norris AW,Rahmouni K,Sigmund CD

更新日期：2016-11-01 00:00:00

abstract：:To examine developmental changes in the LH response to estrogen, eight neonatally ovariectomized monkeys received repeated injections (sc) of 50 micrograms/kg estradiol benzoate (EB) at approximately 4-month intervals starting at age 8-12 months and ending at 49-52 months. Serum samples were obtained 24 before and 0, ...

journal_title：Endocrinology

authors： Terasawa E

更新日期：1985-12-01 00:00:00

abstract：:Estrogens have been shown to have positive and negative effects on anxiety and depressive-like behaviors, perhaps explained by the existence of two distinct estrogen receptor (ER) systems, ERalpha and ERbeta. The ERbeta agonist, diarylpropionitrile (DPN) has been shown to have anxiolytic properties in rats. DPN exists...

journal_title：Endocrinology

authors： Weiser MJ,Wu TJ,Handa RJ

更新日期：2009-04-01 00:00:00

abstract：:A major cause of infertility in normal and assisted reproduction cycles is failure of the endometrium to undergo appropriate changes during the secretory phase of the menstrual cycle as it acquires receptivity for an implanting blastocyst. Current dogma states that loss of epithelial polarity in the luminal epithelial...

journal_title：Endocrinology

authors： Whitby S,Salamonsen LA,Evans J

更新日期：2018-01-01 00:00:00

abstract：:The effect of bovine corneal extracellular matrix (ECM) on gonadotropin-primed rat granulosa cells in vitro was studied by examining the following parameters: 1) rate of cell attachment to culture dishes; 2) modulation of cell morphology; 3) specific binding of [125I]human(h)CG to LH/hCG receptors; 4) cAMP response to...

journal_title：Endocrinology

authors： Furman A,Rotmensch S,Kohen F,Mashiach S,Amsterdam A

更新日期：1986-05-01 00:00:00

abstract：:Mature male rat liver cytosol contains a moderate affinity and capacity estrogen-binding protein in at least a 200-fold higher level than mature female or immature male rat liver cytosol. Binding of estradiol to this protein is very rapid, is stabilized by EDTA, and is inhibited by divalent cations. This is the major ...

journal_title：Endocrinology

authors： Dickson RB,Aten RF,Eisenfeld AJ

更新日期：1978-11-01 00:00:00

abstract：:We have previously demonstrated that, in prostate cancer cells, androgens up-regulate IGF-I receptor (IGF-IR) by inducing cAMP-response element-binding protein (CREB) activation and CREB-dependent IGF-IR gene transcription through androgen receptor (AR)-dependent membrane-initiated effects. This IGF-IR up-regulation i...

journal_title：Endocrinology

authors： Malaguarnera R,Sacco A,Morcavallo A,Squatrito S,Migliaccio A,Morrione A,Maggiolini M,Belfiore A

更新日期：2014-04-01 00:00:00

abstract：:Insulin secretion by beta-cells of pancreatic islets is regulated by various soluble factors including glucose and hormones. The importance of direct cell-cell communication among beta-cells or between beta-cells and other cell types for such regulation has remained unclear, however. Transmembrane proteins Src homolog...

journal_title：Endocrinology

authors： Kobayashi M,Ohnishi H,Okazawa H,Murata Y,Hayashi Y,Kobayashi H,Kitamura T,Matozaki T

更新日期：2008-11-01 00:00:00

abstract：:Patients with Graves' disease and exophthalmos demonstrate delayed hypersensitivity to antigens present in extracts of certain normal human tissue; namely,thyroid gland and retroorbital tissue. The delayed hypersensitivity can be assayed in vitro by quantitating the amount of a lymphokine, migration inhibition factor ...

journal_title：Endocrinology

authors： Mullin BR,Levinson RE,Friedman A,Henson DE,Winand RJ,Kohn LD

更新日期：1977-02-01 00:00:00