Adenosine 3',5'-monophosphate (cAMP) and calcium-calmodulin interrelation in the control of prolactin secretion: evidence for dopamine inhibition of cAMP accumulation and prolactin release after calcium mobilization.

abstract：:The levels of the GnRH receptor (GnRHR) and its messenger RNA depend on the pattern of administration of GnRH. In this study, internal deletion mutants in a luciferase reporter gene vector (GnRHR-pXP2) containing a 1226-bp promoter fragment of mouse GnRHR gene were used to examine the regulation of GnRHR gene transcri...

journal_title：Endocrinology

authors： Maya-Núñez G,Conn PM

更新日期：1999-08-01 00:00:00

abstract：:The ALP1 [aci-reductone dioxygenase (ARD)-like protein 1] gene was identified in a comprehensive cDNA subtraction aimed at identifying genes regulated by androgens in the rat ventral prostate. ALP1 is homologous to the ARD/ARD' that were discovered in Klebsiella pneumoniae as enzymes that have the same polypeptide seq...

journal_title：Endocrinology

authors： Oram S,Jiang F,Cai X,Haleem R,Dincer Z,Wang Z

更新日期：2004-04-01 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：:The present studies were conducted to further evaluate inositol phosphate formation and metabolism in prostaglandin F2 alpha (PGF2 alpha)-stimulated bovine luteal cells. Corpora lutea were dispersed with collagenase, and luteal cells were prelabeled for 3 h with [3H]inositol. Inositol phosphates produced in response t...

journal_title：Endocrinology

authors： Duncan RA,Davis JS

更新日期：1991-03-01 00:00:00

abstract：:Using messenger RNA (mRNA) differential display, we isolated several putative differentially expressed complementary DNAs (cDNAs) from the periimplantation (days 11-12) endometrium of unilaterally pregnant pigs. Nucleotide sequence analysis revealed that one cDNA clone was 87% homologous to human spermidine/ spermine ...

journal_title：Endocrinology

authors： Green ML,Blaeser LL,Simmen FA,Simmen RC

更新日期：1996-12-01 00:00:00

abstract：:Osteocalcin, a synthetic osteoblast-specific protein, has recently emerged as an important regulator of energy metabolism, but the underlying mechanisms are not fully understood. In the present study, mice fed a high-fat diet and receiving osteocalcin showed reduced body weight gain, less fat pad gain, and improved in...

journal_title：Endocrinology

authors： Zhou B,Li H,Xu L,Zang W,Wu S,Sun H

更新日期：2013-03-01 00:00:00

abstract：:PTHrP is produced in vessels and acts as a local modulator of tone. We recently reported that PTHrP(1-34) is able to induce vasorelaxation in rat uterine arteries, but in pregnancy, this response is blunted and becomes strictly endothelium dependent. The present study aimed to get insights into the mechanisms involved...

journal_title：Endocrinology

authors： Meziani F,Tesse A,Welsch S,Kremer H,Barthelmebs M,Andriantsitohaina R,Schneider F,Gairard A

更新日期：2008-02-01 00:00:00

abstract：:ACTH produced a 75% increase in pregnenolone biosynthesis from endogenous precursors in isolated cells prepared from the rat Snell adrenocortical carcinoma 494. On the addition of 24- and 25-hydroxycholesterol to the tumor cells, the rate of pregnenolone synthesis increased 10-fold but was insensitive to the presence ...

journal_title：Endocrinology

authors： Mason JI,Robidoux WF

更新日期：1979-11-01 00:00:00

abstract：:A primary culture system has been established for rainbow trout corpuscles of Stannius (CS). A RIA has also been developed to monitor and characterize the teleocalcin secreted by these cultures. The primary cultured CS cells actively synthesized and secreted teleocalcin for up to 39 days when maintained in amphibian a...

journal_title：Endocrinology

authors： Gellersen B,Wagner GF,Copp DH,Friesen HG

更新日期：1988-08-01 00:00:00

abstract：:Synthesis of GH, PRL, and proopiomelanocortin (POMC) by the adult ovine pituitary was examined by culturing intact tissue explants in vitro and analyzing newly synthesized proteins by two-dimensional gel electrophoresis. Spots on autoradiographs of two-dimensional gels were identified by comigration with known standar...

journal_title：Endocrinology

authors： Miller WL,Leisti S,Johnson LK

更新日期：1982-10-01 00:00:00

abstract：:Kisspeptins are hypothalamic neuropeptides encoded by KISS1 and recently described as major regulators of GnRH release from hypothalamic neurons. Although 17beta-estradiol (E2)-induced up-regulation of KISS1 expression has been documented in anteroventral periventricular nucleus neurons, E2 down-regulates KISS1 expres...

journal_title：Endocrinology

authors： Huijbregts L,de Roux N

更新日期：2010-08-01 00:00:00

abstract：:The effects of continuous high GH levels on GH signal transduction through the GH receptor (GHR)/Janus kinase 2 (JAK2)/signal transducer and activator of transcription 5 (STAT5) pathway as well as the desensitization of this pathway by suppressors of cytokine signaling (SOCS) were studied in transgenic mice overexpres...

journal_title：Endocrinology

authors： González L,Miquet JG,Sotelo AI,Bartke A,Turyn D

更新日期：2002-02-01 00:00:00

abstract：:Treatment of inflammation is often accomplished through the use of glucocorticoids. However, their use is limited by side effects. We have examined the activity of a novel glucocorticoid receptor ligand that binds the receptor efficiently and strongly represses inflammatory gene expression. This compound has potent an...

journal_title：Endocrinology

authors： López FJ,Ardecky RJ,Bebo B,Benbatoul K,De Grandpre L,Liu S,Leibowitz MD,Marschke K,Rosen J,Rungta D,Viveros HO,Yen WC,Zhi L,Negro-Vilar A,Miner JN

更新日期：2008-05-01 00:00:00

abstract：:Insulin and protein kinase B (or Akt) play critical roles in cardiomyocytic growth and survival. High concentrations of glucocorticoids antagonize insulin's action. To examine whether endogenous glucocorticoids modulate insulin's effect on Akt signaling in the protein and glycogen synthetic pathways in myocardium, we ...

journal_title：Endocrinology

authors： Wu Y,Barrett EJ,Long W,Liu Z

更新日期：2004-03-01 00:00:00

abstract：:Medullary thyroid cancer (MTC) is a C cell neoplasm-secreting calcitonin. Surgery remains the only treatment as the primary tumor and metastases resist radio- and chemotherapies. MTC produces high amounts of prostaglandins (PGs). Nonsteroidal antiinflammatory drugs have an antitumoral effect, generally related to the ...

journal_title：Endocrinology

authors： Quidville V,Segond N,Pidoux E,Cohen R,Jullienne A,Lausson S

更新日期：2004-05-01 00:00:00

abstract：:We investigated the effect of TSH on calcium transport in mouse thyroid, as well as the influence of iodide thereupon. Thyroid lobes were incubated in Krebs-Ringer bicarbonate buffer containing [45Ca2+] and the time-dependent uptake of [45Ca2+] by the lobes was observed. In the presence of 0.5 mU/ml TSH, the uptake of...

journal_title：Endocrinology

authors： Hashizume K,Ichikawa K,Komiya I,Onaya T

更新日期：1984-05-01 00:00:00

abstract：:A detailed understanding of the mechanism of action of estrogen on bones is still lacking. The present study was designed to examine possible modulation by 17 beta-estradiol (E2) on the effects of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] and on vitamin D receptors (VDR) in the ROS 17/2.8 osteoblast-like cell line. Cell...

journal_title：Endocrinology

authors： Liel Y,Kraus S,Levy J,Shany S

更新日期：1992-05-01 00:00:00

abstract：:Selective inhibitors of sodium glucose cotransporter-2 (SGLT2) are widely used for the treatment of type 2 diabetes and act primarily to lower blood glucose by preventing glucose reabsorption in the kidney. However, it is controversial whether these agents also act on the pancreatic islet, specifically the α cell, to ...

journal_title：Endocrinology

authors： Dai C,Walker JT,Shostak A,Bouchi Y,Poffenberger G,Hart NJ,Jacobson DA,Calcutt MW,Bottino R,Greiner DL,Shultz LD,McGuinness OP,Dean ED,Powers AC

更新日期：2020-08-01 00:00:00

abstract：:Inhibin was first characterized in mammals as a gonadal dimeric protein that inhibited pituitary follicle-stimulating hormone (FSH) secretion. As in mammals, the inhibin-specific α subunit (INHA/Inha/inha) has also been characterized in teleosts; however, its functions and physiological importance in fish reproduction...

journal_title：Endocrinology

authors： Lu H,Zhao C,Zhu B,Zhang Z,Ge W

更新日期：2020-12-01 00:00:00

abstract：:Previous studies have suggested that the ovary produces a factor that maintains the pituitary in a state of low LHRH responsiveness that must be overcome by the self-priming action of LHRH. To determine the role of inhibin in maintaining low LHRH responsiveness in pituitaries of diestrous female rats, endogenous inhib...

journal_title：Endocrinology

authors： Culler MD

更新日期：1992-03-01 00:00:00

abstract：:Leptin, a circulating 16-kDa protein secreted by adipocytes, decreases body weight by reducing food intake and enhancing energy utilization. Leptin receptors that share homology to the glycoprotein gp130 have been recently cloned. In addition, differentially spliced leptin receptor messenger RNAs have been identified....

journal_title：Endocrinology

authors： Liu C,Liu XJ,Barry G,Ling N,Maki RA,De Souza EB

更新日期：1997-08-01 00:00:00

abstract：:IGF-I has been shown to play a role in the progression of atherosclerosis in experimental animal models. IGF-binding protein-4 (IGFBP-4) binds to IGF-I and prevents its association with receptors. Overexpression of a protease-resistant form of IGFBP-4 has been shown to inhibit the ability of IGF-I to stimulate normal ...

journal_title：Endocrinology

authors： Nichols TC,Busby WH Jr,Merricks E,Sipos J,Rowland M,Sitko K,Clemmons DR

更新日期：2007-10-01 00:00:00

abstract：:Both Snell (Pit-1(dw) or (dwj), dw/dw) and Ames (Prophet of Pit-1(df), df/df) dwarf mice fail to produce prolactin (PRL) as well as GH due to deficient transcription factor Pit-1 activity and have reduced numbers of hypothalamic PRL-inhibiting area A12 tuberoinfundibular dopaminergic (TIDA) neurons. It has been report...

journal_title：Endocrinology

authors： Phelps CJ

更新日期：2004-12-01 00:00:00

abstract：:In the ovarian follicle, oocyte-secreted factors induce cumulus-specific genes and repress mural granulosa cell specific genes to establish these functionally distinct cell lineages. The mechanism establishing this precise morphogenic pattern of oocyte signaling within the follicle is unknown. The present study invest...

journal_title：Endocrinology

authors： Watson LN,Mottershead DG,Dunning KR,Robker RL,Gilchrist RB,Russell DL

更新日期：2012-09-01 00:00:00

abstract：:The site(s) of the negative feedback action of estrogen on gonadotropin secretion were studied in the ovariectomized rhesus monkey by observing the serum LH and FSH responses to intravenous GnRH injections at various times after implantation of Silastic capsules filled with estrogen. Circulating estrogen concentration...

journal_title：Endocrinology

authors： Weick RF,Pitelka V,Thompson DL

更新日期：1983-05-01 00:00:00

abstract：:Although the pituitary-grafted rat is a classic model of chronic PRL excess, the presence of somatotropes in grafted pituitary tissue indicates a potential for GH secretion. The current study was designed to investigate GH-releasing hormone (GRH)-induced GH secretion and beta-adrenergic inhibition of GH release in ani...

journal_title：Endocrinology

authors： Krieg RJ Jr,Johnson JH,Adler RA

更新日期：1989-11-01 00:00:00

abstract：:In previous work we showed that the chondrodysplastic phenotype of mice homozygous for a null mutation of the PTH-related peptide (PTHrP) gene was due in part to reduced proliferation and aberrant differentiation of growth plate chondrocytes. In the present study we have extended those observations by examining chondr...

journal_title：Endocrinology

authors： Amizuka N,Henderson JE,Hoshi K,Warshawsky H,Ozawa H,Goltzman D,Karaplis AC

更新日期：1996-11-01 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：:We tested further our postulate that enhanced de novo synthesis of phosphatidic acid is responsible for ACTH- and cAMP-induced increases in adrenal phospholipids in the phosphatidate polyphosphoinositide pathway. During incubation of adrenal sections or cells in vitro, ACTH and cAMP increased the concentrations of and...

journal_title：Endocrinology

authors： Farese RV,Sabir MA,Larson RE

更新日期：1981-12-01 00:00:00

abstract：:Fluorescence resonance energy transfer using genetically encoded biosensors has proven to be a powerful technique to monitor the spatiotemporal dynamics of cAMP signals stimulated by G(s)-coupled receptors in living cells. In contrast, real-time imaging of G(i)-mediated cAMP signals under native conditions remains cha...

journal_title：Endocrinology

authors： Jacobs S,Calebiro D,Nikolaev VO,Lohse MJ,Schulz S

更新日期：2010-09-01 00:00:00