Novel self-regulation of human chorionic gonadotropin biosynthesis in term pregnancy human placenta.

abstract：:Bone morphogenetic protein 2 (BMP2) belongs to the transforming growth factor-β superfamily and plays a critical role in regulating ovarian follicle function. Currently, the role of BMP2 during cumulus expansion remains to be determined. The aim of this study was to investigate the effect of BMP2 on the regulation of ...

journal_title：Endocrinology

authors： Bai L,Chang HM,Cheng JC,Chu G,Leung PCK,Yang G

更新日期：2017-10-01 00:00:00

abstract：:We have recently identified gonadotropes as target cells for ATP action via ATP receptors of the P2U subtype. The present studies have used gonadotrope-derived alpha T3-1 cells to examine the possible signaling mechanisms subserving ATP action in gonadotropes. Addition of ATP produced a biphasic intracellular Ca2+ (Ca...

journal_title：Endocrinology

authors： Chen ZP,Kratzmeier M,Poch A,Xu S,McArdle CA,Levy A,Mukhopadhyay AK,Lightman SL

更新日期：1996-01-01 00:00:00

abstract：:At micromolar (pharmacological) concentrations, the action of tamoxifen on the proliferation of estrogen-dependent cells can be mediated not only by the estrogen receptor (ER), but also by other target molecules, such as protein kinase-C (PKC), which are easily inhibited by antiestrogens in cell-free experiments. By d...

journal_title：Endocrinology

authors： Astruc ME,Chabret C,Bali P,Gagne D,Pons M

更新日期：1995-03-01 00:00:00

abstract：:Glucose release from the liver is mediated by hypothalamic norepinephrine (NE) neuronal activity, but glucose itself (or a metabolite of it) exerts negative feedback effects on central NE activity. The aim of the present study was to investigate a possible role for insulin in these central glucose homeostatic mechanis...

journal_title：Endocrinology

authors： Smythe GA,Bradshaw JE,Nicholson MV,Grunstein HS,Storlien LH

更新日期：1985-10-01 00:00:00

abstract：:Aminoglutethimide, an inhibitor of pregnenolone synthesis, was used to study the relationship between oxidative phosphorylation and steroidogenesis in ovarian mitochondria. In vitro addition of aminoglutethimide to mitochondria prepared from porcine corpora lutea resulted in a decrease in oxygen uptake and an increase...

journal_title：Endocrinology

authors： Dimino MJ,Chavis TR,Downing JR

更新日期：1980-05-01 00:00:00

abstract：:Arterial pressure (AP), heart rate (HR), and cardiovascular diseases, including ischemic heart attack and cerebrovascular accident, show diurnal variation. Evidence that circadian-related genes contribute to cardiovascular control has been accumulated. In this study, we measured the AP and HR of Clock mutant mice on t...

journal_title：Endocrinology

authors： Sei H,Oishi K,Chikahisa S,Kitaoka K,Takeda E,Ishida N

更新日期：2008-07-01 00:00:00

abstract：:The glucocorticoid receptor (GR) is a crucial target gene for glucocorticoid-induced insulin resistance and hepatic gluconeogenesis linked to the development of type 2 diabetes. The liver X receptors (LXRs) are nuclear receptors that play an important role in the regulation of the metabolic gene linked to carbohydrate...

journal_title：Endocrinology

authors： Liu Y,Yan C,Wang Y,Nakagawa Y,Nerio N,Anghel A,Lutfy K,Friedman TC

更新日期：2006-11-01 00:00:00

abstract：:[125I]-[D-Ser(TBU)6]LHRH-EA binds to a single class of high affinity sites in rat anterior pituitary cells in culture at an apparent dissociation constant of 0.25 nM at 0-4C. The order of potency of a representative group of LHRH agonists and antagonists to displace the labeled ligand is similar to their LH-releasing ...

journal_title：Endocrinology

authors： Giguere V,Lefebvre FA,Labrie F

更新日期：1981-01-01 00:00:00

abstract：:Analysis of GH gene structure in the mouse permits evolutionary comparisons with GH gene structure in the rat and provides information about the mechanism responsible for heritable deficiencies of anterior pituitary hormones. The little mutation in mice is analogous to autosomal recessive, isolated, partial deficiency...

journal_title：Endocrinology

authors： Parks JS,Herd JE,Wurzel JM,Martial JA

更新日期：1982-05-01 00:00:00

abstract：:Glucose-dependent insulinotropic peptide (GIP) is a 42-amino acid peptide synthesized and secreted from endocrine cells in the small intestine. The role of GIP in coupling nutrient intake and insulin secretion, the incretin effect, is well known. We report that GIP receptor messenger RNA and protein are present in nor...

journal_title：Endocrinology

authors： Bollag RJ,Zhong Q,Phillips P,Min L,Zhong L,Cameron R,Mulloy AL,Rasmussen H,Qin F,Ding KH,Isales CM

更新日期：2000-03-01 00:00:00

abstract：:Molecular mechanisms underlying unloading-induced reduction of bone formation have not yet been fully understood. In vitro, Runx2 has been suggested to be involved in mechanical signaling in osteoblasts. However, the roles of Runx2 in vivo during the bone response to mechanical stimuli have not yet been known. The pur...

journal_title：Endocrinology

authors： Salingcarnboriboon R,Tsuji K,Komori T,Nakashima K,Ezura Y,Noda M

更新日期：2006-05-01 00:00:00

abstract：:Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine produced by peripheral immune cells and also by endocrine cells in the anterior pituitary gland. MIF exerts its proinflammatory actions in the host-defense system by blocking the inhibitory effects of glucocorticoids on the release of other pro...

journal_title：Endocrinology

authors： Tierney T,Patel R,Stead CA,Leng L,Bucala R,Buckingham JC

更新日期：2005-01-01 00:00:00

abstract：:SH2-containing inositol 5'-phosphatase 2 (SHIP2) is a 5'-lipid phosphatase hydrolyzing the phosphatidylinositol (PI) 3-kinase product PI(3,4,5)P(3) to PI(3,4)P(2) in the regulation of insulin signaling, and is shown to be increased in peripheral tissues of diabetic C57BL/KSJ-db/db mice. To clarify the impact of SHIP2 ...

journal_title：Endocrinology

authors： Kagawa S,Soeda Y,Ishihara H,Oya T,Sasahara M,Yaguchi S,Oshita R,Wada T,Tsuneki H,Sasaoka T

更新日期：2008-02-01 00:00:00

abstract：:The quantities of estrone and estradiol were determined by radioimmunoassay in maternal and fetal plasma of the rhesus monkey from day 59 to 163 of gestation. A two way analysis of variance of data classified according to fetal sex and 3 pooled gestational ages for each hormone and for mother or fetus (4 analyses) rev...

journal_title：Endocrinology

authors： Resko JA,Pleom JG,Stadelman HL

更新日期：1975-08-01 00:00:00

abstract：:The effects of recombinant human insulin-like growth factor I (IGF-I) on both vasoactive intestinal peptide (VIP) and PRL production and gene expression were studied using rat anterior pituitary cell cultures grown in serum-free defined medium. We also examined whether pituitary VIP could be involved in the PRL respon...

journal_title：Endocrinology

authors： Lara JI,Lorenzo MJ,Cacicedo L,Tolón RM,Balsa JA,López-Fernández J,Sánchez-Franco F

更新日期：1994-12-01 00:00:00

abstract：:During the purification of skeletal growth factor/insulin-like growth factor-II and transforming growth factor-beta (TGF beta) from EDTA extracts of bovine bone matrix significant mitogenic activity for cultured osteoblast (Ob)-like cells eluted in fractions that contained a nearly homogeneous peptide with a mol wt of...

journal_title：Endocrinology

authors： Jennings JC,Mohan S,Baylink DJ

更新日期：1989-07-01 00:00:00

abstract：:In the present report, we show that prostaglandin (PG) E2 is the most potent factor which stimulates aromatase expression via cyclic AMP and promoter II. PGE2 acts via EP1 and EP2 receptor subtypes to stimulate both the PKC and PKA pathways. The combined stimulation of both of these pathways results in maximal express...

journal_title：Endocrinology

authors： Zhao Y,Agarwal VR,Mendelson CR,Simpson ER

更新日期：1996-12-01 00:00:00

abstract：:The effect of an activator of protein kinase C, 12-O-tetradecanoylphorbol-13-acetate (TPA), on the 5'-deiodinase (5'D) activity was studied in rat astroglial cells cultured in chemically defined medium. TPA promoted a large increase in the type II 5'D activity, which was maximal 5-10 h after addition of TPA and then d...

journal_title：Endocrinology

authors： Courtin F,Chantoux F,Gavaret JM,Toru-Delbauffe D,Jacquemin C,Pierre M

更新日期：1989-09-01 00:00:00

abstract：:Up-regulation of maternal islet function is essential to accommodate the increased demand for insulin during pregnancy. Previously, we suggested that lactogenic activity regulates islet function during pregnancy. However, this hypothesis was based on the effect of homologous PRLs on islets, since the homologous placen...

journal_title：Endocrinology

authors： Brelje TC,Scharp DW,Lacy PE,Ogren L,Talamantes F,Robertson M,Friesen HG,Sorenson RL

更新日期：1993-02-01 00:00:00

abstract：:Previous studies have shown that estradiol indirectly stimulated the proliferation of oviduct epithelial cells in the quail. The present study was undertaken to investigate the effects of estradiol and other steroid hormones on the cAMP concentration. The ability of forskolin, a specific activator of the catalytic sub...

journal_title：Endocrinology

authors： Laugier C,Courion C,Pageaux JF,Fanidi A,Dumas MY,Sandoz D,Nemoz G,Prigent AF,Pacheco H

更新日期：1988-01-01 00:00:00

abstract：:In the spiny dogfish (Squalus acanthias), germ cells and adjacent steroidogenic elements are topographically segregated within the testis according to stage of development. In the experiments reported here, we have taken advantage of this favorable anatomical arrangement to demonstrate stage-specific variations in ste...

journal_title：Endocrinology

authors： Callard GV,Pudney JA,Mak P,Canick JA

更新日期：1985-10-01 00:00:00

abstract：:Task3 K(+) channels are highly expressed in the adrenal cortex and contribute to the angiotensin II and K(+) sensitivity of aldosterone-producing glomerulosa cells. Adult Task3(-/-) mice display a partially autonomous aldosterone secretion, subclinical hyperaldosteronism, and salt-sensitive hypertension. Here, we inve...

journal_title：Endocrinology

authors： Bandulik S,Tauber P,Penton D,Schweda F,Tegtmeier I,Sterner C,Lalli E,Lesage F,Hartmann M,Barhanin J,Warth R

更新日期：2013-08-01 00:00:00

abstract：:Melanocortins (MC) trigger a vagus nerve-mediated cholinergic-antiinflammatory pathway projecting to the testis. We tested whether pharmacological activation of brain MC receptors might protect the testis from the damage induced by ischemia-reperfusion. Adult male rats were subjected to 1-h testicular ischemia, follow...

journal_title：Endocrinology

authors： Minutoli L,Bitto A,Squadrito F,Irrera N,Rinaldi M,Nicotina PA,Arena S,Magno C,Marini H,Spaccapelo L,Ottani A,Giuliani D,Romeo C,Guarini S,Antonuccio P,Altavilla D

更新日期：2011-10-01 00:00:00

abstract：:The mechanism of the hypophosphatemic effect of thyrocalcitonin (TCT) is uncertain and may involve removal of inorganic phosphate (P1) from the plasma by heretofore unidentified organs. Rats, 192 g. thyroparathyroidectomized 16-24 h earlier, received 100 MRC mU TCT or vehicle (V) SC and 100 muCi 32PO4 iv. One h later ...

journal_title：Endocrinology

authors： Meyer RA Jr,Meyer MH

更新日期：1975-04-01 00:00:00

abstract：:Androgenic glands (AGs) of the freshwater prawn Macrobrachium rosenbergii were subjected to endocrine manipulation, causing them to hypertrophy. Transcripts from these glands were used in the construction of an AG cDNA subtractive library. Screening of the library revealed an AG-specific gene, termed the M. rosenbergi...

journal_title：Endocrinology

authors： Ventura T,Manor R,Aflalo ED,Weil S,Raviv S,Glazer L,Sagi A

更新日期：2009-03-01 00:00:00

abstract：:The estrogenic and antiestrogenic actions of the geometric isomers of tamoxifen and 4-hydroxytamoxifen were determined in a PRL synthesis assay using primary cultures of dispersed immature rat pituitary gland cells. 4-Hydroxytamoxifen was 100 times more potent as an antiestrogen than tamoxifen. The cis isomer of tamox...

journal_title：Endocrinology

authors： Jordan VC,Koch R,Langan S,McCague R

更新日期：1988-04-01 00:00:00

abstract：:Sorbin is a 153-amino acid peptide that was initially discovered in the porcine duodenum. We have reported previously that this peptide regulates intestinal electrolyte transport and have described accumulation sites in the rat digestive tract. In the present study, we investigated the anatomical distribution and the ...

journal_title：Endocrinology

authors： El Fadil FA,Nicol P,Leduque P,Berger F,Descroix-Vagne M,Pansu D

更新日期：1997-11-01 00:00:00

abstract：:In view of recent reports on ovarian production and action of transforming growth factors (TGFs) and inhibin-related proteins (inhibin, activin, and follistatin), we have examined the effects of these hormones on the function of preovulatory follicles in vitro. Individual preovulatory follicles were obtained from PMSG...

journal_title：Endocrinology

authors： Tsafriri A,Vale W,Hsueh AJ

更新日期：1989-10-01 00:00:00

abstract：:We have investigated the interaction between hypothalamic ACTH secretagogues and adrenocortical glucocorticoids in rat anterior pituitary tissue using an in vitro perifusion system. Repeated 5 min pulses of 41-residue CRF (CRF-41) or arginine vasopressin (AVP) were applied at 1 h intervals for up to 7 h. Administratio...

journal_title：Endocrinology

authors： Shipston MJ,Antoni FA

更新日期：1992-04-01 00:00:00

abstract：:Pheochromocytomas (PCCs) are tumors arising from neural crest-derived chromaffin cells. There are currently few animal models of PCC that recapitulate the key features of human tumors. Because such models may be useful for investigations of molecular pathomechanisms and development of novel therapeutic interventions, ...

journal_title：Endocrinology

authors： Wiedemann T,Peitzsch M,Qin N,Neff F,Ehrhart-Bornstein M,Eisenhofer G,Pellegata NS

更新日期：2016-08-01 00:00:00