Gonadotrophin stimulation of progesterone synthesis by midpregnancy mouse ovarian cells in vitro.

abstract：:The electrical responses of rat islet cells maintained in culture with varying levels of glucose were determined. After culture with 2.8 or 4.2 mM glucose, the beta-cells did not respond electrically to 27.8 mM glucose. However, after culture in 5.6 mM glucose, the cells responded to 27.8 mM glucose in short term expe...

journal_title：Endocrinology

authors： Pace CS,Conant S,Lacy PE

更新日期：1978-05-01 00:00:00

abstract：:We report here the effects of antibodies to estrogen receptor (ER) on the binding of tritiated 5 alpha-androstane-3 beta-17 beta-diol and antiestrogens to receptor in calf uterine cytosol. The antibodies, prepared from a rabbit immunized with purified estradiol-receptor complex from calf uterine nuclei, were found to ...

journal_title：Endocrinology

authors： Garcia M,Greene G,Rochefort H,Jensen EV

更新日期：1982-04-01 00:00:00

abstract：:Regularly menstruating female rhesus monkeys were implanted sc with Silastic tubing packed with estrone. The implants were replaced every 6-8 months to maintain the serum estrone and estradiol concentrations constantly elevated 1.5-2.5-fold, i.e. in the midfollicular phase range, for 4 yr. Increasing the estrone and e...

journal_title：Endocrinology

authors： Billiar RB,Richardson DW,Little B

更新日期：1989-05-01 00:00:00

abstract：:The TSH receptor (TSHR) hinge region, the least well understood component, bridges the leucine-rich repeat and transmembrane domains. We report data on clusters of hinge charged residues the mutation of which to Ala is compatible with cell surface expression and normal, or near normal, TSH binding affinity yet with a ...

journal_title：Endocrinology

authors： Chen CR,Salazar LM,McLachlan SM,Rapoport B

更新日期：2012-10-01 00:00:00

abstract：:An estrogen-binding protein (EBP) has been identified and characterized in the cytosol of the pathogenic yeast Candida albicans. Binding of [3H]estradiol was found to be optimal at pH 7.4 in the presence of 0.3 M KCl and was linearly related to protein concentration. Binding was very rapid, reaching maximal levels in ...

journal_title：Endocrinology

authors： Skowronski R,Feldman D

更新日期：1989-04-01 00:00:00

abstract：:Impairments in the estradiol (E2)-induced surge of LH occur as aging female rodents lose reproductive cycles. These and other impairments can be substantially attenuated by ovariectomy of the young adult. In female rats, plasma PRL tends to increase with age, whereas in male rats, GH tends to decrease; PRL is regulate...

journal_title：Endocrinology

authors： Mobbs CV,Cheyney D,Sinha YN,Finch CE

更新日期：1985-02-01 00:00:00

abstract：:The antithyroid drug 6-propylthiouracil (PTU) was previously shown in our laboratory to have an unexpectedly prolonged inhibitory effect on iodination in the thyroid glands of rats. Eighteen hours after injection of a relatively small dose, iodination in the thyroid remained inhibited by more than 90%. We previously s...

journal_title：Endocrinology

authors： Taurog A,Dorris ML

更新日期：1989-06-01 00:00:00

abstract：:We previously reported that TNF-alpha-induced apoptosis of lactotropes is estrogen dependent and predominant at proestrus. Here we observed that TNF-alpha (50 ng/ml) failed to induce apoptosis of anterior pituitary cells from ovariectomized rats cultured in the presence of progesterone (10(-6) m). However, progesteron...

journal_title：Endocrinology

authors： Candolfi M,Jaita G,Zaldivar V,Zárate S,Ferrari L,Pisera D,Castro MG,Seilicovich A

更新日期：2005-02-01 00:00:00

abstract：:Female infertility is often associated with deregulation of hormonal networks, and hyperprolactinemia is one of the most common endocrine disorders of the hypothalamic-pituitary axis affecting the reproductive functions. We have shown previously that transgenic female mice overexpressing human chorionic gonadotropin β...

journal_title：Endocrinology

authors： Ratner LD,Gonzalez B,Ahtiainen P,Di Giorgio NP,Poutanen M,Calandra RS,Huhtaniemi IT,Rulli SB

更新日期：2012-12-01 00:00:00

abstract：:Aromatase-deficient (ArKO) mice are deficient in estrogens due to deletion of the aromatase gene. We hypothesized that there may be changes in the cardiovascular system of ArKO mice because of evidence linking estrogens with improved cardiovascular outcomes and the induction of the glucocorticoid-metabolizing enzyme, ...

journal_title：Endocrinology

authors： Head GA,Obeyesekere VR,Jones ME,Simpson ER,Krozowski ZS

更新日期：2004-09-01 00:00:00

abstract：:A rat medullary thyroid carcinoma, which was previously shown to produce high levels of immunoreactive cholecystokinin (CCK), was used to establish a stable cell line. Transplantable tumors were subjected to four series of alternate in vitro and in vivo passages. Cells were prepared from the fourth series of tumors un...

journal_title：Endocrinology

authors： Haun RS,Beinfeld MC,Roos BA,Dixon JE

更新日期：1989-08-01 00:00:00

abstract：:Defining the molecular genetics of diabetes gives new insight into the underlying etiology and so should help improve treatment. The genetic etiology is now known for most patients with beta-cell monogenic diabetes, allowing genetic classification. We review how this genetic knowledge alters treatment. Patients with a...

journal_title：Endocrinology

authors： Hattersley AT,Pearson ER

更新日期：2006-06-01 00:00:00

abstract：:In the rat ovary, follicle cells produce and respond to activin, but as yet, the functional significance of the autocrine/paracrine effects of ovarian activin remains equivocal. To assess the effects of activin on folliculogenesis, normal cycling female rats were injected once every 8 h over a 40-h period with recombi...

journal_title：Endocrinology

authors： Erickson GF,Kokka S,Rivier C

更新日期：1995-11-01 00:00:00

abstract：:Pancreatic membrane receptors for cholecystokinin (CCK) in obese and nonobese Zucker rats were compared with the use of a biologically active [125I]iodo-CCK-8 radioprobe. Membrane homogenates from obese rats bound half the amount of radioligand in 2 h as did membranes from lean rats (specifically bound, 7.0% vs. 14.0%...

journal_title：Endocrinology

authors： Praissman M,Izzo RS

更新日期：1986-08-01 00:00:00

abstract：:Bone marrow-derived cells are major cellular components of human decidua, with macrophages comprising about 30% of the cells in term tissue. Because cytokines released by bone marrow-derived cells are known to affect hormone release in many tissues, we examined whether cytokines affect the release of PRL from human de...

journal_title：Endocrinology

authors： Jikihara H,Handwerger S

更新日期：1994-01-01 00:00:00

abstract：:We have previously demonstrated that interleukin-1 beta (IL-1 beta), a putative intermediary in the ovulatory process, is a potent stimulator of ovarian PG biosynthesis. In this communication, we examine the possibility that this IL-1 effect reflects in part the induction of arachidonic acid mobilization by phospholip...

journal_title：Endocrinology

authors： Kol S,Ruutiainen-Altman K,Ben-Shlomo I,Payne DW,Ando M,Adashi EY

更新日期：1997-01-01 00:00:00

abstract：:Covalent adduction of a nitrosyl group to cysteines [S-nitrosylation (S-NO)] is emerging as a key route for nitric oxide (NO) to directly modulate protein functions. Here, we studied the effects of estrogens on endothelial protein S-NO and analyzed the nitrosyl-proteomes by biotin/CyDye switch technique combined with ...

journal_title：Endocrinology

authors： Zhang HH,Feng L,Livnat I,Hoh JK,Shim JY,Liao WX,Chen DB

更新日期：2010-08-01 00:00:00

abstract：:Synthetic glucocorticoids (GCs), including dexamethasone (DEX), are powerful anti-inflammatory drugs. Long-term use of GCs, however, can result in metabolic side effects such as hyperglycemia, hepatosteatosis, and insulin resistance. The GC receptor (GR) and liver X receptors (LXRα and LXRβ) regulate overlapping genes...

journal_title：Endocrinology

authors： Patel R,Magomedova L,Tsai R,Angers S,Orellana A,Cummins CL

更新日期：2017-04-01 00:00:00

abstract：:The ontogeny of expression of the CRF gene in the paraventricular hypothalamic nucleus and POMC gene in the pituitary was studied in rats using in situ hybridization histochemistry and Northern blotting techniques, respectively. CRF mRNA was first detected on day 17 of gestation (E17) in the paraventricular nucleus of...

journal_title：Endocrinology

authors： Grino M,Young WS 3rd,Burgunder JM

更新日期：1989-01-01 00:00:00

abstract：:In vitro antiglucocorticoids (cortexolone and progesterone) were evaluated as in vivo antagonists of dexamethasone-induced increases in liver tyrosine amino transferase (TAT; EC 2.6.1.5), tryptophan oxygenase (TPO; EC 1.13.1.12), and glycogen deposition. Cortexolone antagonized the TPO and glycogen responses to dexame...

journal_title：Endocrinology

authors： Naylor PH,Gilani SS,Milholland RJ,Rosen F

更新日期：1980-07-01 00:00:00

abstract：:The mechanism by which aluminum chloride stimulates de novo bone formation is unknown. To evaluate the role of bone remodeling and mature osteoblastic function in aluminum-induced neoosteogenesis, we compared the osteogenic effects of aluminum in normal beagles to those in animals with low turnover osteomalacia induce...

journal_title：Endocrinology

authors： Quarles LD,Drezner MK

更新日期：1992-07-01 00:00:00

abstract：:This study was conducted to determine the feasibility of using replication-defective adenovirus vectors to express receptors for LH. Two vectors were constructed, one that directs the expression of wild-type human LH receptor (LHr; AdRSVLHrwt) and another that directs the expression of the constitutively activated D57...

journal_title：Endocrinology

authors： Bebia Z,Somers JP,Liu G,Ihrig L,Shenker A,Zeleznik AJ

更新日期：2001-06-01 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：:7B2 is a novel neuroendocrine polypeptide which belongs to an entirely new superfamily of proteins. In extension of previous reports on 7B2, these studies concern its expression in endocrine pancreatic tissue. They have been performed using specific antibodies prepared against two distinct synthetic fragments of 7B2 c...

journal_title：Endocrinology

authors： Benjannet S,Marcinkiewicz M,Falgueyret JP,Johnson DE,Seidah NG,Chrétien M

更新日期：1988-08-01 00:00:00

abstract：:The insulin-, glucagon- and somatostatin-producing cells (beta, alpha, and delta, respectively) in the pancreatic islets derive from a common precursor stem cell and differentiate sequentially during embryonic development. The homeodomain protein islet duodenum HOX (IDX)-1 [insulin promoter factor (IPF)-1/somatostatin...

journal_title：Endocrinology

authors： Lu M,Miller C,Habener JF

更新日期：1996-07-01 00:00:00

abstract：:We hypothesized the existence of vagal arginine sensors in the liver which modulate arginine-induced pancreatic hormone secretion. The present study was carried out to examine the efferent pathways and receptor mechanisms from arginine sensors using selective vagotomies and autonomic drugs on the secretion of insulin ...

journal_title：Endocrinology

authors： Tanaka K,Inoue S,Nagase H,Takamura Y

更新日期：1990-10-01 00:00:00

abstract：:Treatment of isolated rat adipocytes with epinephrine or isoproterenol caused a time- and concentration-dependent increase in phospholipid methyltransferase (PLMT) activity that was blocked by propranolol and unaffected by phentolamine. Forskolin mimicked the stimulatory effect on PLMT, and insulin inhibited this effe...

journal_title：Endocrinology

authors： Kelly KL,Wong EH

更新日期：1987-06-01 00:00:00

abstract：:A method has been developed for the purification of rat placental lactogen employing a specific radioreceptor assay (RRA). The method involves precipitation with ammonium sulfate, gel filtration on Sephadex G-100, ion-exchange chromatography on DEAE-cellulose and CM-Sephadex, and preparative isoelectric focusing. The ...

journal_title：Endocrinology

authors： Roberston MC,Friesen HG

更新日期：1975-09-01 00:00:00

abstract：:Variation in the onset of puberty among inbred strains of mice suggests that quantitative trait loci (QTLs) affect neurological and hormonal aspects of sexual maturation. Taking a novel approach toward identifying factors that regulate the hypothalamic-pituitary-gonadal (HPG) axis, we evaluated pubertal timing [as ass...

journal_title：Endocrinology

authors： Krewson TD,Supelak PJ,Hill AE,Singer JB,Lander ES,Nadeau JH,Palmert MR

更新日期：2004-10-01 00:00:00

abstract：:Diabetics have at least twice the risk of stroke and may show performance deficit in a wide range of cognitive domains. The mechanisms underlying this gradually developing end-organ damage may involve both vascular changes and direct damage to neuronal cells as a result of overproduction of superoxide by the respirato...

journal_title：Endocrinology

authors： Aragno M,Mastrocola R,Medana C,Restivo F,Catalano MG,Pons N,Danni O,Boccuzzi G

更新日期：2005-12-01 00:00:00