A reexamination of the proposed inactivation of thyroid peroxidase in the rat thyroid by propylthiouracil.

abstract：:The activity of hepatic NADPH cytochrome c reductase, an enzyme important in drug and steroid metabolism, increases rapidly during the perinatal period in rats. However, the regulation of this increase is not well understood. To investigate the role of hormones in the development of NADPH cytochrome c reductase activi...

journal_title：Endocrinology

authors： Kriz BM,Gates JA,Read FE,Fong BB

更新日期：1982-06-01 00:00:00

abstract：:To assess the effect of breast feeding on circulating thyroid hormone levels in the suckling neonate, we examined serum concentrations of T4, T3, and rT3 by RIA in 12- and 15-day-old rat pups fasted for 3 or 6 h before, at, and hourly for 3 or 4 h after suckling. In both age groups, serum T4 levels decreased significa...

journal_title：Endocrinology

authors： Oberkotter LV

更新日期：1988-07-01 00:00:00

abstract：:Progesterone has the capacity to suppress hypothalamic dopaminergic neuronal activity on proestrous afternoon and prolong or amplify the preovulatory prolactin surge in rats. In the present study, we examined enzyme activity and phosphorylation state of tyrosine hydroxylase (TH) in the stalk-median eminence of cycling...

journal_title：Endocrinology

authors： Liu B,Arbogast LA

更新日期：2008-04-01 00:00:00

abstract：:Ghrelin is produced by the gastrointestinal tract, and its systemic concentrations are mainly regulated by nutritional factors. Our aim was to investigate: 1) endogenous portal and systemic acylated and unacylated ghrelin levels (AG and UAG, respectively); 2) whether an iv glucose tolerance test (IVGTT) modifies AG an...

journal_title：Endocrinology

authors： Gauna C,Uitterlinden P,Kramer P,Kiewiet RM,Janssen JA,Delhanty PJ,van Aken MO,Ghigo E,Hofland LJ,Themmen AP,van der Lely AJ

更新日期：2007-11-01 00:00:00

abstract：:The levels of two steroid-binding proteins, progesterone-binding globulin (PBG) (1) and corticosteroid-binding globulin (CBG), present in the plasma of pregnant guinea pigs were determined just before and after parturition. Both PBG (3.37 +/- 2.1 microM) and CBG (10.1 +/- 1.7 microM) were present in high levels just b...

journal_title：Endocrinology

authors： Raymoure WJ,Kuhn RW

更新日期：1980-06-01 00:00:00

abstract：:LHRH release is dependent on the availability of calcium, and prostaglandin E2 is a potent releaser of LHRH. Therefore, we investigated the role of phospholipase A2 (PLA2) on the release of LHRH from the hypothalamus. Four rat hypothalami were perifused with Krebs-Ringer buffer, and after a 60-min preincubation period...

journal_title：Endocrinology

authors： Nava LE,Malacara JM

更新日期：1987-10-01 00:00:00

abstract：:Selective serotonin-reuptake inhibitors (SSRIs) antagonize the serotonin (5-hydroxytryptamine) transporter (5-HTT), and are frequently prescribed to children and adolescents to treat depression. However, recent findings of functional serotonergic pathways in bone cells and preliminary clinical evidence demonstrating d...

journal_title：Endocrinology

authors： Warden SJ,Robling AG,Sanders MS,Bliziotes MM,Turner CH

更新日期：2005-02-01 00:00:00

abstract：:In this study we used live-cell immunocytochemistry and confocal microscopy to study the release from a single vesicle in a simplified system called membrane lawns. The lawns were prepared by exposing differentiated pituitary prolactin (PRL)-secreting cells to a hypoosmotic shear stress. The density of the immunolabel...

journal_title：Endocrinology

authors： Stenovec M,Gonçalves PP,Zorec R

更新日期：2013-03-01 00:00:00

abstract：:Experiments were performed in vitro to examine the possible role of calcium and calmodulin in GRF-induced somatostatin (SRIF) release from the median eminence. Adult male rats were used as tissue donors. The median eminences were first prestimulated in 0.4 ml Krebs Ringer bicarbonate glucose buffer (pH 7.4) containing...

journal_title：Endocrinology

authors： Aguila MC,McCann SM

更新日期：1988-07-01 00:00:00

abstract：:To examine the mechanism of estrogen's direct stimulation of steroidogenesis in the rabbit corpus luteum, we tested the hypothesis that the effect of estrogen on progestin production occurs at the site of processing of the precursor for pregnenolone (i.e. cholesterol) in the mitochondrion. For this purpose, we manipul...

journal_title：Endocrinology

authors： Holt JA,Wittmaack FM,Schreiber JR,Ghosh DK,Menon KM

更新日期：1988-05-01 00:00:00

abstract：:Aldosterone plays a major role in regulating sodium and potassium flux in epithelial tissues such as kidney and colon. Recent evidence suggests that serum- and glucocorticoid-regulated kinase (SGK) is induced by aldosterone and acts as a key mediator of aldosterone action in epithelial tissues. Induction of SGK messen...

journal_title：Endocrinology

authors： Bhargava A,Fullerton MJ,Myles K,Purdy TM,Funder JW,Pearce D,Cole TJ

更新日期：2001-04-01 00:00:00

abstract：:While uterine stromal cells (USC) appear to modify the function of uterine epithelial cells (UEC) under certain conditions in vivo, relatively little is known about the effect of epithelial cells on stromal cell differentiation and function. To determine if UEC modulate USC function in vitro, highly enriched (> 95%) c...

journal_title：Endocrinology

authors： Wegner CC,Carson DD

更新日期：1992-12-01 00:00:00

abstract：:With the use of rabbit anti-LH-RH serum, a system of delicate nerve fibers and terminals which contain immunoreactive LH-RH can be demonstrated in the median eminence of the rat, corresponding exactly to the tubero-infundibular tract as described earlier with the aid of classical neurophistological methods. The delica...

journal_title：Endocrinology

authors： Sétáló G,Vigh S,Schally AV,Arimura A,Flerkó B

更新日期：1975-01-01 00:00:00

abstract：:The neuropeptide kisspeptin (Kiss1) is integral to the advent of puberty and the generation of cyclical LH surges. Although many complex actions of Kiss1 are known, the mechanisms governing the processing/regulation of this peptide have not been unveiled. The metallo enzyme, endopeptidase 24.15 (thimet oligopeptidase)...

journal_title：Endocrinology

authors： Woitowich NC,Philibert KD,Leitermann RJ,Wungjiranirun M,Urban JH,Glucksman MJ

更新日期：2016-02-01 00:00:00

abstract：:To examine the role of androgen receptor (AR) in Sertoli cells (SC), we used a SC-specific AR knockout (S-AR-/y) mouse to further evaluate the chronological changes of seminiferous tubules and the molecular mechanisms of SC androgen/AR signals on spermatogenesis. Testes morphology began changing as early as postnatal ...

journal_title：Endocrinology

authors： Wang RS,Yeh S,Chen LM,Lin HY,Zhang C,Ni J,Wu CC,di Sant'Agnese PA,deMesy-Bentley KL,Tzeng CR,Chang C

更新日期：2006-12-01 00:00:00

abstract：:In the present study, we have investigated the cellular mechanisms of androgen-induced antral follicular growth arrest and the possible involvement of chemerin and its receptor chemokine-like receptor 1 (CMKLR1) in this process, using a chronically androgenized rat model. We hypothesize that hyperandrogenism induces a...

journal_title：Endocrinology

authors： Kim JY,Xue K,Cao M,Wang Q,Liu JY,Leader A,Han JY,Tsang BK

更新日期：2013-08-01 00:00:00

abstract：:Attempts to assess human placental GH variant (hGH-V) and chorionic somatomammotropin (hCS) RNA in choriocarcinoma cell lines have been hampered by low levels of expression and limited sensitivity of RNA blotting analysis. We examined human choriocarcinoma BeWo, JAR, and JEG-3 cell lines as well as samples of complete...

journal_title：Endocrinology

authors： Lytras A,Bock ME,Dodd JG,Cattini PA

更新日期：1994-06-01 00:00:00

abstract：:In dairy goats, treatments associating a progestogen and the equine chorionic gonadotropin (eCG) are the easiest way to induce and synchronize estrus and ovulation and to permit artificial insemination (AI) and/or out of season breeding. From the first treatment, the injection of eCG induces, in some females, the prod...

journal_title：Endocrinology

authors： Hervé V,Roy F,Bertin J,Guillou F,Maurel MC

更新日期：2004-01-01 00:00:00

abstract：:The alphaVbeta3 integrin is an important determinant of IGF-I-stimulated receptor phosphorylation and biological actions. Blocking ligand occupancy of alphaVbeta3 with the distintegrin echistatin reduces IGF-I-stimulated receptor phosphorylation, and it inhibits cellular migration and DNA synthesis responses to IGF-I....

journal_title：Endocrinology

authors： Maile LA,Clemmons DR

更新日期：2002-11-01 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：:A member of the interferon-inducible p200 family of proteins, p204, has recently been reported to function in the development of many mesoderm-derived tissues, such as bone, muscle, and cartilage. However, no published study has yet investigated the role of p204 in adipogenesis. Our preliminary experiments showed that...

journal_title：Endocrinology

authors： Xiao J,Sun B,Cai GP

更新日期：2010-07-01 00:00:00

abstract：:Testicular tissue of normal and hCG-stimulated European eels was incubated in vitro with tritiated progesterone or androstenedione as substrates. The following compounds were isolated and identified: 5 beta-androstane-3,17-dione; 17 beta-hydroxy-5 beta-androstan-3-one; androst-4-ene-3,11,17-trione (adrenosterone); 11 ...

journal_title：Endocrinology

authors： Eckstein B,Cohen S,Hilge V

更新日期：1982-03-01 00:00:00

abstract：:Neurons that produce kisspeptin play a critical role in reproduction. However, understanding the molecular physiology of kisspeptin neurons has been limited by the lack of an in vivo marker for those cells. Here, we report the development of a Kiss1-CreGFP knockin mouse, wherein the endogenous Kiss1 promoter directs t...

journal_title：Endocrinology

authors： Gottsch ML,Popa SM,Lawhorn JK,Qiu J,Tonsfeldt KJ,Bosch MA,Kelly MJ,Rønnekleiv OK,Sanz E,McKnight GS,Clifton DK,Palmiter RD,Steiner RA

更新日期：2011-11-01 00:00:00

abstract：:We describe an in vitro system for evaluating the direct effects of catecholamines on the activity of the type II iodothyronine 5'-deiodinase in dispersed rat brown adipocytes. Incubation with norepinephrine or phenylephrine for 3-4 h causes up to a 5-fold increase in deiodinase activity in these cells. As found in vi...

journal_title：Endocrinology

authors： Obregon MJ,Mills I,Silva JE,Larsen PR

更新日期：1987-03-01 00:00:00

abstract：:The effect of [D-Trp6]LHRH, a potent agonist of LHRH, on pituitary-testicular responses was investigated in male rhesus monkeys. Acute administration of 5, 25, or 500 micrograms [D-Trp6]LHRH produced dose-related increases in serum testosterone and bioassayable LH levels. The administration of 500 micrograms [D-Trp6]L...

journal_title：Endocrinology

authors： Sundaram K,Connell KG,Bardin CW,Samojlik E,Schally AV

更新日期：1982-04-01 00:00:00

abstract：:Pituitary growth hormone (GH) and insulinlike growth factor (IGF)-1 are anabolic hormones whose physiological roles are particularly important during development. The activity of the GH/IGF-1 axis is controlled by complex neuroendocrine systems including two hypothalamic neuropeptides, GH-releasing hormone (GHRH) and ...

journal_title：Endocrinology

authors： Lecomte MJ,Bertolus C,Ramanantsoa N,Saurini F,Callebert J,Sénamaud-Beaufort C,Ringot M,Bourgeois T,Matrot B,Collet C,Nardelli J,Mallet J,Vodjdani G,Gallego J,Launay JM,Berrard S

更新日期：2018-04-01 00:00:00

abstract：:Peptide-YY (PYY) is a novel enteric peptide that is structurally related to pancreatic polypeptide and neuropeptide-Y. The objectives of the present experiments were to characterize the following aspects of PYY metabolism: the distribution of PYY in the canine gastrointestinal tract, the release of PYY in response to ...

journal_title：Endocrinology

authors： Greeley GH Jr,Jeng YJ,Gomez G,Hashimoto T,Hill FL,Kern K,Kurosky T,Chuo HF,Thompson JC

更新日期：1989-03-01 00:00:00

abstract：:Increased expression of bone morphogenetic proteins (BMPs) in several tissues is associated with inflammation and type 2 diabetes mellitus. BMP2 and BMP4 mRNA expression is increased in pancreatic islets from db/db mice and β-cell proliferation and function are inhibited by BMP4. The effect of BMPs on α-cells is curre...

journal_title：Endocrinology

authors： Nielsen SS,Christensen GL,Holst JJ,Billestrup N

更新日期：2016-10-01 00:00:00

abstract：:Although the increased expression of Igf-I in liver in response to GH is well characterized, the intracellular signaling pathways that mediate this effect have not been identified. Intracellular signaling molecules belonging to the Janus kinase-signal transducer and activator of transcription 5b (JAK2-STAT5b) pathway ...

journal_title：Endocrinology

authors： Davey HW,Xie T,McLachlan MJ,Wilkins RJ,Waxman DJ,Grattan DR

更新日期：2001-09-01 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