The role of the pentose phosphate shunt in thyrotropin-induced thyroid hormone secretion: in vivo and vitro studies with 6-aminonicotinamide in mouse thyroids.

abstract：:Isolated renal cortical slices were used to study the conversion of 25-hydroxyvitamin D3 to 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] and 24,25-dihydroxyvitamin D3 [24,25](OH2)D3] by the rat kidney. Production of 1,25-(OH)2D3 and 24,25-(OH)2D3 was linear with time (30-90 min) and tissue weight (40-250 mg). Production of...

journal_title：Endocrinology

authors： Armbrecht HJ,Zenser TV,Davis BB

更新日期：1981-07-01 00:00:00

abstract：:Amiodarone, a potent antiarrhythmic drug, contains 37.2% iodine by weight and may induce either hypo- or hyperthyroidism. The high iodine content of amiodarone may be responsible for both complications, but a cytotoxic effect of the drug on the thyroid resulting in thyroiditis has been reported. In the present study t...

journal_title：Endocrinology

authors： Chiovato L,Martino E,Tonacchera M,Santini F,Lapi P,Mammoli C,Braverman LE,Pinchera A

更新日期：1994-05-01 00:00:00

abstract：:Studies in the rat and rabbit indicate that facilitatory effects of neuropeptide Y (NPY) as well as norepinephrine (NE) on LH and LHRH release are dependent on the presence of the ovarian steroid estrogen. However, we have previously found the NE and an alpha-1-adrenergic agonist are both stimulatory to pulsatile LHRH...

journal_title：Endocrinology

authors： Woller MJ,Terasawa E

更新日期：1991-02-01 00:00:00

abstract：:Plasma immunoreactive PRL responses to indoleamines and their metabolites were studied in urethane-anesthetized rats. All drugs were injected into the lateral ventricle and blood samples were serially collected from a jugular vein. Serotonin and melatonin caused a significant increase in plasma PRL with peak values at...

journal_title：Endocrinology

authors： Iwasaki Y,Kato Y,Ohgo S,Abe H,Imura H,Hirata F,Senoh S,Tokuyama T,Hayaishi O

更新日期：1978-07-01 00:00:00

abstract：:The effects of epidermal growth factor (EGF) on glycogen metabolism and the binding of [125I]iodo-EGF to receptors in fetal rat hepatocytes have been examined. The actions of EGF have been compared with those of insulin-like growth factor I (IGF-I) and insulin. EGF (0.1-45 nM) stimulated dose-dependent increases in [1...

journal_title：Endocrinology

authors： Freemark M

更新日期：1986-08-01 00:00:00

abstract：:Berberine, a hypoglycemic agent, has recently been shown to activate AMP-activated protein kinase (AMPK) contributing to its beneficial metabolic effects in peripheral tissues. However, whether berberine exerts a regulatory effect on beta-cells via AMPK or other signaling pathways and counteracts glucolipotoxicity rem...

journal_title：Endocrinology

authors： Zhou L,Wang X,Shao L,Yang Y,Shang W,Yuan G,Jiang B,Li F,Tang J,Jing H,Chen M

更新日期：2008-09-01 00:00:00

abstract：:Previously, we have demonstrated an inhibitory effect of oxytocin (OXT) on progesterone (P) and androstenedione (A) release of porcine luteal cell cultures. The present study examines whether OXT modulates P, A, or estradiol (E2) release of so-called small luteal cells (SLC) or of granulosa-derived large luteal cells ...

journal_title：Endocrinology

authors： Pitzel L,Jarry H,Wuttke W

更新日期：1990-05-01 00:00:00

abstract：:It was shown previously that epidermal growth factor (EGF) plays a role in the testosterone-dependent fetal Wolffian duct differentiation. In this communication, the role of EGF was further investigated by determining whether EGF receptor plays a role in mediating the effect of EGF during Wolffian duct (male duct) dif...

journal_title：Endocrinology

authors： Gupta C,Jaumotte J

更新日期：1993-10-01 00:00:00

abstract：:Seven adult female rhesus monkeys were laparotomized at days 22, 42, and 157 of pregnancy and blood was collected from the uterine vein and peripheral circulation. Plasma samples were analyzed for monkey chorionic gonadotropin (mCG), monkey chorionic somatomammotropin (mCS), and prolactin by radioimmunoassay. Levels o...

journal_title：Endocrinology

authors： Walsh SW,Wolf RC,Meyer RK,Aubert ML,Friesen HG

更新日期：1977-03-01 00:00:00

abstract：:The power of animal models is derived from the ability to control experimental variables so that observed effects may be unequivocally attributed to the factor that was changed. One variable that is difficult to control in animal experiments is the number and composition of offspring in a litter. To account for this v...

journal_title：Endocrinology

authors： Suvorov A,Vandenberg LN

更新日期：2016-07-01 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：:The hypoxic growth plate cartilage requires hypoxia-inducible factor (HIF)-mediated pathways to maintain chondrocyte survival and differentiation. HIF proteins are tightly regulated by prolyl hydroxylase domain-containing protein 2 (Phd2)-mediated proteosomal degradation. We conditionally disrupted the Phd2 gene in ch...

journal_title：Endocrinology

authors： Cheng S,Xing W,Pourteymoor S,Schulte J,Mohan S

更新日期：2016-01-01 00:00:00

abstract：:Previous studies showed that noncalcemic 20(OH)D3, a product of CYP11A1 action on vitamin D3, has antifibrotic activity in human dermal fibroblasts and in a bleomycin mouse model of scleroderma. In this study, we tested the role of retinoic acid-related orphan receptor γ (RORγ), which is expressed in skin, in the acti...

journal_title：Endocrinology

authors： Janjetovic Z,Postlethwaite A,Kang HS,Kim TK,Tuckey RC,Crossman DK,Qayyum S,Jetten AM,Slominski AT

更新日期：2021-01-01 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：: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：:Proteolytic degradation of extracellular matrix components has been suggested to play an essential role in the occurrence of ovulation. Recent studies in our laboratory have indicated that the plasminogen activator and matrix metalloproteinase systems, which were previously believed to be crucial for ovulation, are no...

journal_title：Endocrinology

authors： Wahlberg P,Nylander A,Ahlskog N,Liu K,Ny T

更新日期：2008-10-01 00:00:00

abstract：:Many New World primate species have elevated circulating free plasma cortisol concentrations, target tissue resistance to cortisol, and no evidence of sodium retention. A representative New World primate, the squirrel monkey (Saimiri sciureus), has plasma cortisol concentrations above those necessary to cause complete...

journal_title：Endocrinology

authors： Chrousos GP,Loriaux DL,Brandon D,Shull J,Renquist D,Hogan W,Tomita M,Lipsett MB

更新日期：1984-07-01 00:00:00

abstract：:The adrenal zona glomerulosa (ZG) secretes aldosterone to regulate sodium balance. Chronic sodium restriction increases aldosterone accompanied by ZG expansion. The ZG is innervated by sympathetic, vasoactive intestinal polypeptide (VIP) and neuropeptide tyrosine (NPY), and sensory, calcitonin gene-related peptide, ne...

journal_title：Endocrinology

authors： Tran PV,Georgieff MK,Engeland WC

更新日期：2010-10-01 00:00:00

abstract：:We studied the effect of peroxisome proliferator-activated receptor-alpha (PPAR-alpha) activation on serum concentrations and tissue expression of resistin, adiponectin, and adiponectin receptor-1 and -2 (AdipoR1 and AdipoR2) mRNA in normal mice and mice with insulin resistance induced by lipogenic, simple-carbohydrat...

journal_title：Endocrinology

authors： Haluzik MM,Lacinova Z,Dolinkova M,Haluzikova D,Housa D,Horinek A,Vernerova Z,Kumstyrova T,Haluzik M

更新日期：2006-09-01 00:00:00

abstract：:Calcitonin gene-related peptide (CGRP)-I has been reported to inhibit gastric acid secretion through stimulation of gastric somatostatin-14 (S-14) release. To establish whether some of the effects of CGRP-I on intestinal function might also be mediated through somatostatin, fetal rat intestinal cultures were treated w...

journal_title：Endocrinology

authors： Brubaker PL,Greenberg GR

更新日期：1993-12-01 00:00:00

abstract：:The purpose of the present study was to test whether rat placental lactogen, proposed to be inhibitory for endogenous rhythmic PRL secretion during pregnancy, is also inhibitory for a neurally mediated PRL response to exogenous stimulation, i.e. suckling. Pregnant lactating rats were used as the model in this study. B...

journal_title：Endocrinology

authors： Yogev L,Terkel J

更新日期：1982-01-01 00:00:00

abstract：:Hydrogen peroxide acts as electron acceptor in the oxidative reactions (iodination and coupling) by which the thyroid hormones are formed. Regulation of the generation of H2O2 was studied in monolayer cultures of the FRTL-5 rat thyroid cell line and in primary monolayer cultures of porcine thyroid cells. Both cell typ...

journal_title：Endocrinology

authors： Björkman U,Ekholm R

更新日期：1992-01-01 00:00:00

abstract：:Recent studies from our laboratory indicate that high density lipoproteins (HDL) and apolipoproteins-AI, -AII, and -CI stimulate the release of human placental lactogen (hPL) from human placental explants and trophoblast cells. However, the intracellular mechanisms by which HDL stimulate hPL release are unknown. Since...

journal_title：Endocrinology

authors： Wu YQ,Jorgensen EV,Handwerger S

更新日期：1988-10-01 00:00:00

abstract：:Reduced and S-carbamidomethylated human GH (RCAM-hGH) was digested with human plasmin, yielding a mixture of products. These were partially separated by chromatography on DEAE-cellulose, yielding three major fractions: Da and Db, which were equipotent with native hGH in the weight gain test; and Dc, which was about ha...

journal_title：Endocrinology

authors： Mills JB,Kostyo JL,Moseley MH,Reagan CR,Wilhelmi AE

更新日期：1978-05-01 00:00:00

abstract：:Although the neurohypophyseal hormone oxytocin (OT) is best know for its role in reproduction, OT also stimulates natriuresis at physiological plasma levels. This effect is mediated via specific renal OT receptors (OTRs). In the present study, we have characterized rat renal OTR gene transcripts and assessed their reg...

journal_title：Endocrinology

authors： Breton C,Neculcea J,Zingg HH

更新日期：1996-07-01 00:00:00

abstract：:Important enzymes for thyroid hormone metabolism, antioxidative defense, and intracellular redox control contain selenocysteine (Sec) in their active centers. Expression of these selenoproteins is tightly controlled, and a sex-specific phenotype is observed on disturbance of selenium (Se) transport in mice. Therefore,...

journal_title：Endocrinology

authors： Riese C,Michaelis M,Mentrup B,Götz F,Köhrle J,Schweizer U,Schomburg L

更新日期：2006-12-01 00:00:00

abstract：:The effects of LH on glucose metabolism within cumulus cell-enclosed bovine oocytes were determined. Cumulus cell-enclosed bovine oocytes were matured in vitro (IVM) in control medium alone or supplemented with LH, FSH, or TSH, then individually assayed for the metabolism of D-[5-3H]glucose, D-[1-14C]glucose, D-[6-14C...

journal_title：Endocrinology

authors： Zuelke KA,Brackett BG

更新日期：1992-12-01 00:00:00

abstract：:The effects of interleukin-1 beta (IL-1 beta) and tumor necrosis factor-alpha (TNF alpha) on basal and TRH-induced TSH release, and the effects of IL-1 beta on the uptake of [125I]T3 and [125I]T4 and on nuclear binding of [125I]T3 were examined. Furthermore, the release of other anterior pituitary hormones in the pres...

journal_title：Endocrinology

authors： Wassen FW,Moerings EP,Van Toor H,De Vrey EA,Hennemann G,Everts ME

更新日期：1996-05-01 00:00:00

abstract：:Ovarian surface epithelium (OSE) is the most conceivable cell origin of epithelial ovarian carcinomas. Unlike many other epithelial tumors, the precancerous lesion acquires expression of epithelial markers, e.g. E-cadherin and claudins, suggesting that OSE cells undergo mesenchymal to epithelial transition (MET) durin...

journal_title：Endocrinology

authors： Zhu Y,Nilsson M,Sundfeldt K

更新日期：2010-11-01 00:00:00

abstract：:The insulin-like growth factors (IGFs) stimulate the proliferation of human breast cancer cells, including the estrogen-dependent cell line MCF-7. These cells secrete regulatory IGF-binding proteins (IGFBPs) which may enhance or attenuate IGF-stimulated cell proliferation. In this study, we have used RIA to quantify t...

journal_title：Endocrinology

authors： Martin JL,Coverley JA,Pattison ST,Baxter RC

更新日期：1995-03-01 00:00:00