Structure-activity relationships of sex steroid analogs determined in vitro in a thyroid hormone-responsive membrane Ca2+-ATPase model.

abstract：:ACTH produced a 75% increase in pregnenolone biosynthesis from endogenous precursors in isolated cells prepared from the rat Snell adrenocortical carcinoma 494. On the addition of 24- and 25-hydroxycholesterol to the tumor cells, the rate of pregnenolone synthesis increased 10-fold but was insensitive to the presence ...

journal_title：Endocrinology

authors： Mason JI,Robidoux WF

更新日期：1979-11-01 00:00:00

abstract：:In the thyroid follicles and blood of goats with congenital hypothyroidism and goiter, abnormal iodoproteins (e.g. iodoalbumin) are found. To study the mechanism involved in the passage of these proteins between the follicles and the blood, the morphology of tight junctions in goiters and normal thyroids of goats was ...

journal_title：Endocrinology

authors： van Uigen AJ,van Dijk JE,Koch CA,de Vijlder JJ

更新日期：1985-07-01 00:00:00

abstract：:Thyroid hormone (T(3)) regulates growth, development, and differentiation. These activities are mediated by the nuclear thyroid hormone receptors (TRs), which belong to the steroid/TR superfamily of ligand-dependent transcription factors. The effect of T(3) treatment on target gene regulation was investigated in a TRa...

journal_title：Endocrinology

authors： Shih CH,Chen SL,Yen CC,Huang YH,Chen CD,Lee YS,Lin KH

更新日期：2004-06-01 00:00:00

abstract：:Insulin and epidermal growth factor (EGF) share a number of metabolic actions, including stimulation of protein synthesis and growth in certain tissues, and activation of apparent receptor tyrosine kinase activities. We have shown that insulin and EGF promote the phosphorylation of a number of intracellular proteins i...

journal_title：Endocrinology

authors： Blackshear PJ,Nemenoff RA,Avruch J

更新日期：1984-01-01 00:00:00

abstract：:The disappearance of 125-I-ACTH from the circulation of 4 pregnant and fetal sheep has been followed after a single injection to the ewe or fetus. The mean metabolic clearance rate for the fetus and the ewe was 55 and 34 ml/min/kg respectively, giving a half-life in each case of about 1 min. The higher fetal than mate...

journal_title：Endocrinology

authors： Jones CT,Luther E,Ritchie JW,Worthington D

更新日期：1975-01-01 00:00:00

abstract：:Signals derived from other pituitary cells can have a dramatic effect on PRL gene expression and secretion by mammotropes. However, the intracellular mechanisms by which these effects are manifested on the target cell remain unexplored. Inasmuch as calcium is a key modulator of both gene expression and hormone export ...

journal_title：Endocrinology

authors： Abraham EJ,Villalobos C,Frawley LS

更新日期：1998-06-01 00:00:00

abstract：:We examined the gene expression of V-1, a novel soluble protein with the cdc10/SWI6 motif, in pseudopregnant rat ovaries. Northern blot analysis on days 1, 5, and 11 of pseudopregnancy revealed an approximately 2-fold increase in the V-1 messenger RNA (mRNA) expression level on day 5 to that on day 1, and no significa...

journal_title：Endocrinology

authors： Song SY,Asakai R,Kenmotsu N,Taoka M,Isobe T,Yamakuni T

更新日期：1996-04-01 00:00:00

abstract：:Sodium butyrate (NaB), a dietary micronutrient, is a potent growth inhibitor that initiates cell differentiation in many cell types, including prostate cancer cells. The molecular mechanisms by which these effects occur remain largely unknown. In this study, we investigated the effects of NaB on the expression of IGF ...

journal_title：Endocrinology

authors： Tsubaki J,Hwa V,Twigg SM,Rosenfeld RG

更新日期：2002-05-01 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：:Complete hypothalamic deafferentation, either limited to the median eminence, arcuate nucleus, and basal parts of ventromedial nuclei, or comprising ventromedial nuclei and dorsomedial hypothalamus as well reduced considerably the rise of immunoassayable serum TSH in adult male rats rendered hypothyroid by administrat...

journal_title：Endocrinology

authors： Hefco E,Krulich L,Aschenbrenner JE

更新日期：1975-11-01 00:00:00

abstract：:Bisphenol A (BPA) is a ubiquitous endocrine-disrupting chemical. Developmental exposure produces changes in behavior and gene expression in the brain. Here, we examined social recognition behaviors in mice from the third familial generation (F3) after exposure to gestational BPA. Second-generation mice were bred in on...

journal_title：Endocrinology

authors： Wolstenholme JT,Drobná Z,Henriksen AD,Goldsby JA,Stevenson R,Irvin JW,Flaws JA,Rissman EF

更新日期：2019-08-01 00:00:00

abstract：:In order to delineate the ages of onset and decline in sensitivity to growth hormone (GH) in rats, the ability of ovine GH in vitro to stimulate amino acid uptake and protein synthesis was studied in diaphragm muscle. GH (25 mug/ml) produced a significant, but small (12-17%), stimulation of alpha-aminoisobutyric acid ...

journal_title：Endocrinology

authors： Nutting DF

更新日期：1976-05-01 00:00:00

abstract：:Commercially available preparations of natural porcine glucose-dependent insulinotropic polypeptide (GIP) were subjected to reverse phase HPLC. The material was found to give rise to 4 peaks which were characterized by HPLC-retention time and N-terminal sequence analysis. They represented: intact porcine GIP(1-42), 58...

journal_title：Endocrinology

authors： Schmidt WE,Siegel EG,Kümmel H,Gallwitz B,Creutzfeldt W

更新日期：1987-02-01 00:00:00

abstract：:Traditionally, it has been thought that the bioavailable fraction of circulating serum hormones, i.e. that which is available for cellular uptake and is physiologically active, is limited to the free (nonprotein bound) hormone. However, recent evidence, based on acute organ uptake of labeled hormone, suggests that the...

journal_title：Endocrinology

authors： Glass AR,Vigersky RA,Rajatanavin R,Pardridge W,Smallridge RC,Wartofsky L,Burman KD

更新日期：1984-05-01 00:00:00

abstract：:The Rice H500 rat Leydig cell tumor is a well characterized model of humoral hypercalcemia of malignancy (HHM). Circulating concentrations of PTH-related protein (PTHRP) have not been reported in this or any other animal model of HHM. Taking advantage of the marked N-terminal amino acid homology between rodent and hum...

journal_title：Endocrinology

authors： Gaich G,Burtis WJ

更新日期：1990-09-01 00:00:00

abstract：:To determine the basis for the marked daily variability in circulating luteinizing hormone (LH) in the female lamb shortly after birth and to determine whether circulating follicle-stimulating hormone (FSH) exhibits similar variability during this period of life, serum levels of both gonadotropins were monitored frequ...

journal_title：Endocrinology

authors： Foster DL,Jaffe RB,Niswender GD

更新日期：1975-01-01 00:00:00

abstract：:The p44/p42 MAPKs (ERK1/2) cascade regulates beta-cell nuclear events, which modulates cell differentiation and gene transcription, whereas its implication in processes occurring in the cytoplasm, such as activation of the exocytotic machinery, is still unclear. Using the MIN6 beta-cell line and isolated rat islets of...

journal_title：Endocrinology

authors： Longuet C,Broca C,Costes S,Hani EH,Bataille D,Dalle S

更新日期：2005-02-01 00:00:00

abstract：:Cortisol in concentrations similar to the unbound levels of the hormone in human plasma can reverse the inhibition of vascular reactivity produced by prolactin. In the rat mesenteric vascular bed, cortisol alone in similar concentrations had no significant effect on the pressor responses to norepinephrine: the action ...

journal_title：Endocrinology

authors： Horrobin DF,Mtabaji JP,Manku MS

更新日期：1976-08-01 00:00:00

abstract：:CD36/FAT (fatty acid translocase) is associated with human and murine nonalcoholic fatty liver disease, but it has been unclear whether it is simply a marker or whether it directly contributes to disease pathogenesis. Mice with hepatocyte-specific deletion of Janus kinase 2 (JAK2L mice) have increased circulating free...

journal_title：Endocrinology

authors： Wilson CG,Tran JL,Erion DM,Vera NB,Febbraio M,Weiss EJ

更新日期：2016-02-01 00:00:00

abstract：:Brain natriuretic peptide (BNP) and atrial natriuretic peptide (ANP) are present in brain regions regulating LH secretion. Similarities in the molecular structure of these peptides suggest similar physiological function within the brain. This study examined the effects of centrally administered BNP and ANP on LH secre...

journal_title：Endocrinology

authors： Zhang J,Yuen BH,Currie WD,Leung PC

更新日期：1991-08-01 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：:Parathyroid hormone (PTH) secretion rate was measured in seven calves by using a technique which involved RIA of parathyroid venous blood collected during timed intervals and measured volumetrically. Infusion of solutions of NA2EDTA and MgCl2 into the jugular vein was used to alter plasma calcium and magnesium concent...

journal_title：Endocrinology

authors： Mayer GP,Hurst JG

更新日期：1978-06-01 00:00:00

abstract：:Insulin receptor substrate-1 (IRS-1), the primary substrate for the insulin receptor tyrosine kinase in most cells and tissues, is a key component of the insulin signaling network. Numerous studies have documented the trafficking of IRS-1 from the cell membrane to intracellular, extranuclear compartments. During the c...

journal_title：Endocrinology

authors： Boylan JM,Gruppuso PA

更新日期：2002-11-01 00:00:00

abstract：:The intraislet insulin hypothesis has been proposed to explain absent glucagon responses to hypoglycemia. Recently we directly confirmed this hypothesis by restoring glucagon secretion via provision of a pancreatic artery insulin infusion, which was switched off at the time of hypoglycemia in Wistar rats made diabetic...

journal_title：Endocrinology

authors： Zhou H,Zhang T,Oseid E,Harmon J,Tonooka N,Robertson RP

更新日期：2007-06-01 00:00:00

abstract：:We have studied the two estrogen receptor (ER) subtypes, ER alpha and ER beta, and chimeric constructs with ER alpha and ER beta to examine the bioactivities of these receptors and their responses to estrogen and antiestrogen ligands. Transcriptional activity of ER beta is highly dependent on cell/promoter context and...

journal_title：Endocrinology

authors： McInerney EM,Weis KE,Sun J,Mosselman S,Katzenellenbogen BS

更新日期：1998-11-01 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：:It is well established that LH has an obligatory role in the acute production of progesterone by the primate corpus luteum in vivo because interruption of LH support to the corpus luteum at any time during the luteal phase is accompanied by an immediate and sustained fall in serum progesterone concentrations. However,...

journal_title：Endocrinology

authors： Ravindranath N,Little-Ihrig L,Benyo DF,Zeleznik AJ

更新日期：1992-11-01 00:00:00

abstract：:Tuberoinfundibular peptide of 39 residues (TIP39) and the PTH-2 receptor (PTH2R) constitute a peptide-receptor neuromodulator system. Based on the abundance of TIP39 fibers and axonal terminals as well as PTH2R-containing neurons and their processes in the hypothalamic para- and periventricular and arcuate nuclei TIP3...

journal_title：Endocrinology

authors： Cservenák M,Bodnár I,Usdin TB,Palkovits M,Nagy GM,Dobolyi A

更新日期：2010-12-01 00:00:00

abstract：:Recent work in sheep has identified a neuronal subpopulation in the arcuate nucleus that coexpresses kisspeptin, neurokinin B, and dynorphin (referred to here as KNDy cells) and that mediate the negative feedback influence of progesterone on GnRH secretion. We hypothesized that sex differences in progesterone negative...

journal_title：Endocrinology

authors： Cheng G,Coolen LM,Padmanabhan V,Goodman RL,Lehman MN

更新日期：2010-01-01 00:00:00

abstract：:To study blood capillary growth in the hyperplastic thyroid gland, rats were fed 0.25% thiouracil in a low iodine diet for time intervals up to 100 days. Thyroids were fixed by vascular perfusion and embeded in Epon. Whole lobes were sectioned from pole to pole and slides were prepared of sections every 0.3 mm. Capill...

journal_title：Endocrinology

authors： Wollman SH,Herveg JP,Zeligs JD,Ericson LE

更新日期：1978-12-01 00:00:00