Modification of stress-induced prolactin release by dexamethasone or adrenalectomy.

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：:Specialized metabolic sensors in the hypothalamus regulate blood glucose levels by influencing hepatic glucose output and hypoglycemic counterregulatory responses. Hypothalamic reactive oxygen species (ROS) may act as a metabolic signal-mediating responses to changes in glucose, other substrates and hormones. The role...

journal_title：Endocrinology

authors： Pauliina Markkula S,Lyons D,Yueh CY,Riches C,Hurst P,Fielding B,Heisler LK,Evans ML

更新日期：2016-12-01 00:00:00

abstract：:Immunosympathectomy produced by treatment of newborn rats with antibodies to nerve growth factor (NGF) delays ovarian development and disrupts estrous cyclicity. While these alterations have been ascribed to loss of sympathetic neurons innervating the ovary, the treatment also causes partial loss of ovarian sensory in...

journal_title：Endocrinology

authors： Lara HE,McDonald JK,Ahmed CE,Ojeda SR

更新日期：1990-11-01 00:00:00

abstract：:The consumption of refined sugars continues to pose a significant health risk. However, nearly nothing is known about the effects of sugar intake by healthy women on the oocyte or embryo. Using rhesus monkeys, we show that low-dose sucrose intake over a 6-month period has an impact on the oocyte with subsequent effect...

journal_title：Endocrinology

authors： Chaffin CL,Latham KE,Mtango NR,Midic U,VandeVoort CA

更新日期：2014-07-01 00:00:00

abstract：:Studies were performed to determine whether the postovulatory secretion of FSH in the rabbit is an LHRH-mediated event. Does were mated and then injected at 12 and 18 h postcoitum with pentobarbital (30 mg/kg BW), an agent known to block endogenous LHRH release. The injection of this barbiturate had no measurable effe...

journal_title：Endocrinology

authors： Mills TM,Copland JA,Coy DH,Schally AV

更新日期：1983-09-01 00:00:00

abstract：:Steroid hormones can differentially modify gonadotropin release stimulated by GnRH. Decreased GnRH-mediated gonadotropin release has been observed in vitro after pretreatment with androgens or glucocorticoids. In this study, we tested this phenomenon further with the use of a new cytochemical stain for a potent biotin...

journal_title：Endocrinology

authors： Tibolt RE,Childs GV

更新日期：1985-07-01 00:00:00

abstract：:To determine in neonates the effects of protein restriction on growth, serum IGF-I, and IGF-I gene expression, we adapted a technique for rearing neonatal rats (days 6-18 of life) artificially by continuous infusion of milk through a gastrostomy. The artificially reared (AR) animals were given isocaloric diets contain...

journal_title：Endocrinology

authors： Moats-Staats BM,Brady JL Jr,Underwood LE,D'Ercole AJ

更新日期：1989-11-01 00:00:00

abstract：:The peroxisome proliferator-activated receptor-gamma (PPARgamma) transcription factor plays a pivotal role in adipocyte differentiation and metabolic regulation. The transcriptional activity of PPARgamma is positively modulated by ligand binding and negatively regulated by phosphorylation mediated by the MEK/ERK signa...

journal_title：Endocrinology

authors： Camp HS,Tafuri SR,Leff T

更新日期：1999-01-01 00:00:00

abstract：:The biological activity of 1 alpha,25-dihydroxyvitamin D3 [1 alpha,25(OH)2D3], 23(S)25(R)-1 alpha,25(OH)2D3-26,23-lactone, and three intermediate metabolites of the lactone in vivo and in vitro was comparatively examined. The three intermediate metabolites, 1 alpha,25(R)26(OH)3D3, 1 alpha,23(S)25(R)26(OH)4D3, and 23(S...

journal_title：Endocrinology

authors： Ishizuka S,Sumitani K,Hiura K,Kawata T,Okawa M,Hakeda Y,Kumegawa M

更新日期：1990-08-01 00:00:00

abstract：:The placenta is the primary source of estrogens and progesterone during pregnancy. Because pregnant diabetic women are reported to have lower serum estrogen and higher progesterone levels than nondiabetic pregnant women, and placental insulin-like growth factor II (IGF-II) production may be elevated during diabetic pr...

journal_title：Endocrinology

authors： Nestler JE

更新日期：1990-11-01 00:00:00

abstract：:Tumor necrosis factor-alpha (TNF alpha), a product of activated monocytes, induces tissue wasting in certain solid tumors in vivo and in in vitro model systems. Recent studies indicate that TNF alpha also regulates cell replication and expression of differentiated function in a variety of nonneoplastic cell systems. S...

journal_title：Endocrinology

authors： Centrella M,McCarthy TL,Canalis E

更新日期：1988-09-01 00:00:00

abstract：:The experimental induction of puberty by GnRH administration to prepubertal lambs increases serum bioactive FSH (B-FSH) as measured in the rat Sertoli cell aromatase induction bioassay. Serum immunoreactive FSH (I-FSH) levels are unchanged. The increase in serum B-FSH is associated with an increase in the proportion o...

journal_title：Endocrinology

authors： Hassing JM,Kletter GB,I'Anson H,Wood RI,Beitins IZ,Foster DL,Padmanabhan V

更新日期：1993-04-01 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：:Interferon-tau (IFNtau) is the embryonic signal responsible for pregnancy recognition in ruminants. The primary action of IFNtau is believed to be mediated through inhibition of prostaglandin F(2alpha) (PGF(2alpha)) released from the endometrial epithelial cells in response to oxytocin (OT). Our working hypothesis was...

journal_title：Endocrinology

authors： Krishnaswamy N,Danyod G,Chapdelaine P,Fortier MA

更新日期：2009-02-01 00:00:00

abstract：:Continuous labeling of primary cultures of human syncytiotrophoblasts with [125I]iodoepidermal growth factor (iodo-EGF) at 37 C revealed a progressive increase in intracellular EGF with 5% of total label observed in intracellular organelles at 2 min and 88% by 60 min. Detailed analysis by electron microscope radioauto...

journal_title：Endocrinology

authors： Lai WH,Guyda HJ,Bergeron JJ

更新日期：1986-01-01 00:00:00

abstract：:The corpora lutea of pregnancy in the rat are highly dependent on the action of PRL and PRL-like hormones to hypertrophy and to produce progesterone needed for the maintenance of gestation. Two forms of the PRL receptor (PRL-R), designated as long (PRL-RL) and short (PRL-RS), have been described in rat tissues. To det...

journal_title：Endocrinology

authors： Telleria CM,Parmer TG,Zhong L,Clarke DL,Albarracin CT,Duan WR,Linzer DI,Gibori G

更新日期：1997-11-01 00:00:00

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：:Angiotensin II (Ang II) is one of numerous hormones recently shown to be synthesized and secreted by adipose cells. Although the function of Ang II in adipose tissue is unknown, several studies indirectly suggest that it may be involved in control of adiposity. Little is known, however, about direct actions of Ang II ...

journal_title：Endocrinology

authors： Jones BH,Standridge MK,Moustaid N

更新日期：1997-04-01 00:00:00

abstract：:PTH stimulates synthesis and secretion of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] in renal proximal tubule cells through activation of the protein kinase-A (PKA) or the protein kinase-C (PKC) signaling pathway. The relative contribution of the two transducing systems was explored using PTH fragments with selective act...

journal_title：Endocrinology

authors： Janulis M,Wong MS,Favus MJ

更新日期：1993-08-01 00:00:00

abstract：:Desensitization and internalization of G protein-coupled receptors can be mediated by phosphorylation within the C-terminal tail, facilitating beta-arrestin binding and targeting the receptor for internalization. Type II GnRH receptors (GnRH-Rs) show such regulation, but type I GnRH-Rs lack C-tails and are not rapidly...

journal_title：Endocrinology

authors： Caunt CJ,Hislop JN,Kelly E,Matharu AL,Green LD,Sedgley KR,Finch AR,McArdle CA

更新日期：2004-08-01 00:00:00

abstract：:We have investigated the effects of veratridine, a Na+ channel activator, and ouabain, an inhibitor of Na+-K+-ATPase, on short term (1-h) PRL release from primary cultures of rat anterior pituitary cells and from the rat anterior pituitary cell line GH4C1 in culture. Both compounds should increase intracellular Na+. V...

journal_title：Endocrinology

authors： Scammell JG,Dannies PS

更新日期：1983-10-01 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：:Obesity is often associated with an impairment of the hypothalamic-pituitary-gonadal axis. The leptin-deficient ob/ob mouse model is characterized by a morbid obesity with a sterility in males and females that is corrected by continuous leptin treatment. Since ob/ob mice are maintained on the C57BL/6J inbred genetic b...

journal_title：Endocrinology

authors： Ewart-Toland A,Mounzih K,Qiu J,Chehab FF

更新日期：1999-02-01 00:00:00

abstract：:This investigation examined the effects of repeated injections of LH on ovarian function in the immature sheep approximately 12 weeks before the time of the first expected spontaneous ovulation. The frequency of endogenous LH pulses during the pretreatment period was approximately one pulse each 3 h. The first experim...

journal_title：Endocrinology

authors： Foster DL,Ryan KD,Papkoff H

更新日期：1984-09-01 00:00:00

abstract：:Experiments were carried out in castrate adult male rats to further examine whether endogenous opioids are involved in CRF-induced suppression of LH secretion. Serum LH levels in rats castrated 5 days earlier were significantly reduced by intracerebroventricular administration of homologous (rat) CRF (0.02-2 nmol) wit...

journal_title：Endocrinology

authors： Almeida OF,Nikolarakis KE,Herz A

更新日期：1988-03-01 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：:Type 3 deiodinase (D3), the physiologic inactivator of thyroid hormones, is induced during tissue injury and regeneration. This has led to the hypotheses that D3 impacts injury tolerance by reducing local T3 signaling and contributes to the fall in serum triiodothyronine (T3) observed in up to 75% of sick patients (te...

journal_title：Endocrinology

authors： Castroneves LA,Jugo RH,Maynard MA,Lee JS,Wassner AJ,Dorfman D,Bronson RT,Ukomadu C,Agoston AT,Ding L,Luongo C,Guo C,Song H,Demchev V,Lee NY,Feldman HA,Vella KR,Peake RW,Hartigan C,Kellogg MD,Desai A,Salvatore D

更新日期：2014-10-01 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：:The antral hormone gastrin and its intestinal relative, cholecystokinin (CCK), are pivotal in the regulation of gastric functions. Other gastric hormones like ghrelin, peptide YY (PYY), and islet amyloid polypeptide (IAPP), however, also contribute to the regulation of acid secretion, motility, and feeding. Because ga...

journal_title：Endocrinology

authors： Friis-Hansen L,Wierup N,Rehfeld JF,Sundler F

更新日期：2005-10-01 00:00:00