Molecular determinants of oocyte competence: potential functional role for maternal (oocyte-derived) follistatin in promoting bovine early embryogenesis.

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：:Bilateral destruction of the hypothalamic paraventricular nuclei (PVN) produced a profound depression of plasma TSH and the median eminence TRH concentration in hypothyroid rats. Anterior pituitary type II iodothyronine 5'-deiodinase (5'-D) activity was consistently lower but not significantly different in sham- and P...

journal_title：Endocrinology

authors： Murakami M,Tanaka K,Greer MA,Mori M

更新日期：1988-09-01 00:00:00

abstract：:11 beta-Hydroxysteroid dehydrogenase (11 beta HSI) is an enzyme complex responsible for the conversion of hormonally active cortisol to inactive cortisone; two isoforms of the enzyme have been cloned and characterized. Clinical observations from patients with the hypertensive syndrome apparent mineralocorticoid excess...

journal_title：Endocrinology

authors： Shimojo M,Ricketts ML,Petrelli MD,Moradi P,Johnson GD,Bradwell AR,Hewison M,Howie AJ,Stewart PM

更新日期：1997-03-01 00:00:00

abstract：:Certain metabolic properties of hormonally responsive osteogenic sarcoma cells derived from a transplantable rat tumor have been compared with those of related normal rat bone cells. All studies were carried out on cells grown in monolayer culture. Normal rat bone cells derived by repeated collagenase/trypsin digestio...

journal_title：Endocrinology

authors： Partridge NC,Alcorn D,Michelangeli VP,Kemp BE,Ryan GB,Martin TJ

更新日期：1981-01-01 00:00:00

abstract：:The marked up-regulation of oxytocin (OT) receptors in rabbit amnion at term was reproduced in cultured amnion cells by raising intracellular cAMP levels. (Bu)2AMP, forskolin, or cholera toxin caused 2- to 8-fold increases in specific binding of iodinated OT antagonist. The rise in OT receptors involves activation of ...

journal_title：Endocrinology

authors： Hinko A,Soloff MS

更新日期：1993-01-01 00:00:00

abstract：:Animals shipped from commercial suppliers to laboratories are exposed to a wide variety of stressors. Female C57Bl6/J mice shipped during the peripubertal/adolescent period (6 wk old) display lower levels of female sexual behavior in response to estradiol and progesterone injections after ovariectomy when tested in ad...

journal_title：Endocrinology

authors： Laroche J,Gasbarro L,Herman JP,Blaustein JD

更新日期：2009-05-01 00:00:00

abstract：:The effects of L-arginine and its derivatives NG-methyl-L-arginine (Meth-arg) and NG-nitro-L-arginine (Nit-arg) on the insulin release and glucose oxidation of isolated rat islets were investigated to evaluate possible influences of nitric oxide. Also, the insulin release and flow distribution within the perfused rat ...

journal_title：Endocrinology

authors： Jansson L,Sandler S

更新日期：1991-06-01 00:00:00

abstract：:Some 17 alpha-alkylated androgens used as anabolic agents, such as stanozolol (ST) and danazol (DA), have specific effects on the liver that are not exerted by testosterone. This gives rise to the possibility that a steroid-binding protein, other than the androgen receptor, could modulate the intracellular actions of ...

journal_title：Endocrinology

authors： Fernández L,Chirino R,Boada LD,Navarro D,Cabrera N,del Rio I,Díaz-Chico BN

更新日期：1994-03-01 00:00:00

abstract：:The ability of cultured midpregnancy mouse ovarian cells to synthesize progesterone de novo and from oxogenous pregnenolone has been assessed. The conversion of pregnenolone to progesterone is almost completely blocked by cyanoketone, a known inhibitor of delta5,3beta-hydroxysteroid dehydrogenase (3beta-HSD) activity,...

journal_title：Endocrinology

authors： Salomon DS,Sherman MI

更新日期：1976-09-01 00:00:00

abstract：:We previously reported that interleukin-1alpha (IL-1alpha)-induced activation of protein kinase C (PKC) via phosphatidylcholine-specific phospholipase C (PC-PLC) limits IL-6 synthesis induced by IL-1alpha itself in osteoblast-like MC3T3-E1 cells. In the present study, we further investigated the mechanism behind IL-1a...

journal_title：Endocrinology

authors： Miwa M,Kozawa O,Tokuda H,Uematsu T

更新日期：1999-11-01 00:00:00

abstract：:Although the main role of prolactin (PRL) in pregnant rodents is to sustain progesterone production by the corpus luteum, progesterone treatment of PRL or PRL receptor (PRL-R) null mice is unable to prevent fetal loss. We have previously shown that the rat decidua is a site of PRL production and action. In this report...

journal_title：Endocrinology

authors： Bao L,Tessier C,Prigent-Tessier A,Li F,Buzzio OL,Callegari EA,Horseman ND,Gibori G

更新日期：2007-05-01 00:00:00

abstract：:The effects of peripheral glucagon like peptide-1 receptor (GLP-1R) stimulation on feeding, gastric emptying, and energetic responses involve vagal transmission and central nervous system processing. Despite a lack of studies aimed at determining which central nervous system regions are critical for the GLP-1R respons...

journal_title：Endocrinology

authors： Hayes MR,Skibicka KP,Grill HJ

更新日期：2008-08-01 00:00:00

abstract：:Rat reticulocytes contain a cytosol activator protein (RCAP) that augments hormone-sensitive adenylate cyclase activity in the rat reticulocyte and other systems. In a previous publication, using a highly purified preparation of RCAP, we reported that the stimulatory guanine nucleotide-binding protein (Ns) was require...

journal_title：Endocrinology

authors： Shane E,Yeh M,Feigin AS,Owens JM,Bilezikian JP

更新日期：1985-07-01 00:00:00

abstract：:Cocaine- and amphetamine-regulated transcript (CART) is an anorexigenic neuropeptide synthesized in the hypothalamus. A Leu34Phe missense mutation in proCART has been found in an obese family in humans. Here we show that humans bearing the Leu34Phe mutation in proCART have severely diminished levels of bioactive CART,...

journal_title：Endocrinology

authors： Yanik T,Dominguez G,Kuhar MJ,Del Giudice EM,Loh YP

更新日期：2006-01-01 00:00:00

abstract：:We recently identified a 32 K mol wt insulin-like growth factor (IGF)-binding protein (BP) which is markedly increased in the serum of streptozotocin-diabetic rats and recognized by antiserum against the human amniotic fluid IGFBP (hIGFBP-1). In the present study we sought to confirm that this protein represents the r...

journal_title：Endocrinology

authors： Unterman TG,Oehler DT,Gotway MB,Morris PW

更新日期：1990-08-01 00:00:00

abstract：:Recent evidence suggests that inflammation may be a common underlying cause of many obesity-associated conditions. To test whether obesity changes the response to inflammation, we investigated its effects on the acute phase of the inflammatory response to an endogenous pathogen, lipopolysaccharide (LPS). Diet-induced ...

journal_title：Endocrinology

authors： Pohl J,Woodside B,Luheshi GN

更新日期：2009-11-01 00:00:00

abstract：:The FOXO family of forkhead transcription factors stimulates the transcription of target genes involved in many fundamental cell processes, including cell survival, cell cycle progression, DNA repair, and insulin sensitivity. The activity of FOXO proteins is principally regulated by activation of protein kinase B (PKB...

journal_title：Endocrinology

authors： Tsai WC,Bhattacharyya N,Han LY,Hanover JA,Rechler MM

更新日期：2003-12-01 00:00:00

abstract：:B-cell lymphoma 2 (BCL2) family kin (BFK) is a recently identified novel protein that is similar to proteins of the BCL2 family. In the present study, we discovered that the mouse Bfk transcript is expressed at the highest level in the epididymis. Two transcripts of 0.9 and 2.6 kb in size were identified, with alterna...

journal_title：Endocrinology

authors： Pujianto DA,Damdimopoulos AE,Sipilä P,Jalkanen J,Huhtaniemi I,Poutanen M

更新日期：2007-07-01 00:00:00

abstract：:Insulin-like growth factor-I (IGF-I) is produced in multiple tissues and is believed to exert its action in a paracrine or autocrine fashion. We have investigated the GH dependency of tissue IGF-I gene expression in rats harboring implanted somatomammotropic tumors. Circulating GH and radioimmunoassayable IGF-I levels...

journal_title：Endocrinology

authors： Fagin JA,Brown A,Melmed S

更新日期：1988-05-01 00:00:00

abstract：:Recent in vitro and in vivo evidence shows that secretion of parathyroid hormone (PTH) and calcitonin (CT) is stimulated by beta-adrenergic agonists and inhibited by beta-adrenergic antagonists. To assess the possible roles of adrenal medullary or adrenergic nerve terminal catecholamines in calcium homeostasis, we hav...

journal_title：Endocrinology

authors： Heath H 3rd

更新日期：1980-10-01 00:00:00

abstract：:Circulating levels of insulin-like growth factor-I (IGF-I) increase during puberty, concurrent with an increase in the levels of GH and the gonadal steroids. The relationship between the changes observed in IGF-I and testosterone (T) levels are not understood. This study was designed to determine whether T has a direc...

journal_title：Endocrinology

authors： Phillip M,Palese T,Hernandez ER,Roberts CT Jr,LeRoith D,Kowarski AA

更新日期：1992-05-01 00:00:00

abstract：:The pineal hormone melatonin regulates reproductive function in seasonally breeding mammals. Recent studies using 125I-labeled 2-iodomelatonin (I-MEL) reveal that the distribution of putative melatonin receptors is species-specific; only the hypophysial pars tuberalis (PT) is a consistent site of I-MEL binding in all ...

journal_title：Endocrinology

authors： Weaver DR,Reppert SM

更新日期：1990-11-01 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：:Intravascular injections of adrenocorticotropic hormone in hypophysectomized rats were approximately 3 times more effective in stimulating increases in plasma corticosteroid concentration when given at the offset rather than the onset of the daily photoperiod (12 h:12 h light-dark cycle). Reversal of the photoperiodic...

journal_title：Endocrinology

authors： Ottenweller JE,Meier AH,Ferrell BR,Horseman ND,Proctor A

更新日期：1978-11-01 00:00:00

abstract：:Recent studies using twins and inbred strains of mice reveal evidence for genetic mechanisms contributing to variation in circulating levels of IGF-I, IGF-II, and IGF binding protein (IGFBP)-3. To examine the hypothesis that serum IGFBP-5 levels have a strong heritable component, we intercrossed two inbred strains of ...

journal_title：Endocrinology

authors： Mohan S,Masinde G,Li X,Baylink DJ

更新日期：2003-08-01 00:00:00

abstract：:Endothelin (ET) receptor dysregulation has been described in a number of pathophysiological processes, including cardiovascular disorders, renal failure, and cancer. The aim of this study was to evaluate the expression of the ET-A receptor (ET(A)R) in murine models of thyroid carcinoma using optical imaging methods. A...

journal_title：Endocrinology

authors： Büther K,Compeer MG,De Mey JG,Schober O,Schäfers M,Bremer C,Riemann B,Höltke C

更新日期：2012-06-01 00:00:00

abstract：:In the ewe, photoperiod modulates LH and PRL secretion as well as median eminence (ME) dopaminergic activity. The studies reported here were designed to characterize the functional significance of this photoperiodic modulation of ME dopaminergic neuron activity in relation to the regulation of LH and PRL secretion. Th...

journal_title：Endocrinology

authors： Viguié C,Thibault J,Thiéry JC,Tillet Y,Malpaux B

更新日期：1997-01-01 00:00:00

abstract：:Removal of the 18-hydroxy group of the hemiacetal form of aldosterone transforms its activity from that of pure agonist to predominant antagonist. The 18-deoxy derivative possesses one third of the binding affinity of aldosterone for the cytoplasmic mineralocorticoid receptor of rat kidney and exhibits an approximate ...

journal_title：Endocrinology

authors： Ulick S,Marver D,Adam WR,Funder JW

更新日期：1979-05-01 00:00:00

abstract：:Lefty/Ebaf polypeptides, novel members of the TGF-beta superfamily, are involved in endometrial differentiation and embryo implantation. Recently, we showed that, during undisturbed estrous cycle, lefty is present in mouse uterine horn primarily in a precursor form. Here, we show that decidual differentiation of endom...

journal_title：Endocrinology

authors： Tang M,Mikhailik A,Pauli I,Giudice LC,Fazelabas AT,Tulac S,Carson DD,Kaufman DG,Barbier C,Creemers JW,Tabibzadeh S

更新日期：2005-12-01 00:00:00

abstract：:Inside-out plasma membrane vesicles from a glucose-responsive rat insulinoma showed an ATP- and Mg2(+)-dependent uptake of Ca2+. The Km (concentration giving half-maximal activity) for Ca2+ was 60 nM. In the presence of 0.4 microM free Ca2+, the Km for ATP was 15 microM, and the Km for Mg2+ was 4 microM. Glucose (30 m...

journal_title：Endocrinology

authors： Hoenig M,Culberson LH,Ferguson DC

更新日期：1991-03-01 00:00:00