The effects of hydrogen peroxide on steroidogenesis in mouse Leydig tumor cells.

abstract：:The control of ACTH secretion by opiates seems to involve stimulatory and inhibitory pathways, since opiate agonists and antagonists are capable of releasing ACTH in conscious rats. To elucidate the role of different opiate receptors in the control of ACTH release, rats were treated with receptor-selective opiate agon...

journal_title：Endocrinology

authors： Pfeiffer A,Herz A,Loriaux DL,Pfeiffer DG

更新日期：1985-06-01 00:00:00

abstract：:Nutritional programming, taking place in utero or early after birth, is closely linked with metabolic and appetite disorders in adulthood. Following the hypothesis that nutritional programming impacts hypothalamic neuronal organization, we report on discrepancies of multiple molecular and cellular early events that ta...

journal_title：Endocrinology

authors： Coupé B,Amarger V,Grit I,Benani A,Parnet P

更新日期：2010-02-01 00:00:00

abstract：:Targeted disruption [knockout (KO)] of the mouse prolactin (PRL) gene created an animal model of primary isolated PRL deficiency in which there is no detectable PRL bioactivity. Pituitary glands of young adult female PRLKO mice were hyperplastic, and many cells had expanded cytoplasms with granular accumulations of an...

journal_title：Endocrinology

authors： Cruz-Soto ME,Scheiber MD,Gregerson KA,Boivin GP,Horseman ND

更新日期：2002-11-01 00:00:00

abstract：:We have investigated the effect of GH on microtubular physiology in Chinese hamster ovary (CHO) cells stably transfected with the complementary DNA for the rat GH receptor (CHO-GHR(1-638)). We show here that after 30 min of human GH (hGH) treatment of CHO-GHR(1-638) cells, there was a significant increase in the level...

journal_title：Endocrinology

authors： Goh EL,Pircher TJ,Lobie PE

更新日期：1998-10-01 00:00:00

abstract：:Apoptosis is the process of cellular self-destruction, and genes such as bcl-2 and bax are known to inhibit and promote apoptosis, respectively. In this study, we show that apoptosis can be induced in pancreatic beta-cell lines, and we investigate the apoptotic pathways through the bcl-2 and bax genes and intracellula...

journal_title：Endocrinology

authors： Mizuno N,Yoshitomi H,Ishida H,Kuromi H,Kawaki J,Seino Y,Seino S

更新日期：1998-03-01 00:00:00

abstract：:IGF binding protein (IGFBP)-3 is an important regulator of mammary epithelial cell (MEC) growth and can enhance the ability of both IGF-I and epidermal growth factor ligands such as TGFalpha to stimulate MEC proliferation. Here we investigate the role of the phosphatidylinositol-3 kinase (PI3K) and MAPK pathways in th...

journal_title：Endocrinology

authors： Sivaprasad U,Fleming J,Verma PS,Hogan KA,Desury G,Cohick WS

更新日期：2004-09-01 00:00:00

abstract：:Ca2+/calmodulin-dependent processes are altered by manipulations of the hypothalamic-pituitary-adrenal axis. In particular, adrenalectomy (ADX) attenuates hippocampal, but not cortical, calmodulin-dependent adenylate cyclase activity measured during the active (waking) phase of rats. The involvement of calmodulin- and...

journal_title：Endocrinology

authors： Gannon MN,Akompong T,Billingsley ML,McEwen BS

更新日期：1994-02-01 00:00:00

abstract：:Morphine sulfate was found to have a direct inhibitory effect on both basal and GnRH-stimulated LH release by cultured rat pituitary cells. The inhibitory effect of morphine on LH release was prevented by the opiate antagonist naltrexone, and treatment of cells with naltrexone or beta-endorphin antiserum significantly...

journal_title：Endocrinology

authors： Blank MS,Fabbri A,Catt KJ,Dufau ML

更新日期：1986-05-01 00:00:00

abstract：:Tumor necrosis factor-alpha (TNF) and interleukin-1 beta (IL-1) are secreted by activated monocytes and other immune cells. Since IL-1 has been shown to elevate rat plasma ACTH and both of these cytokines induce similar acute-phase responses, the present studies of TNF were undertaken to characterize the ACTH response...

journal_title：Endocrinology

authors： Sharp BM,Matta SG,Peterson PK,Newton R,Chao C,Mcallen K

更新日期：1989-06-01 00:00:00

abstract：:Both starvation and feeding of a low protein diet have dramatic effects on serum thyroid hormone concentrations and on the serum binding proteins for thyroid hormones in rats. We examined whether similar changes might be seen in another model of undernutrition, namely underfeeding without alteration of dietary composi...

journal_title：Endocrinology

authors： Glass AR,Young RA,Anderson J

更新日期：1986-06-01 00:00:00

abstract：:GH3 rat pituitary cells have L-type voltage-gated calcium channels, and both the rate of uptake of 45Ca2+ and the concentration of intracellular free calcium ion ([Ca2+]i) are increased by depolarization with high potassium. Cells incubated for several days with 10 nM epidermal growth factor (EGF) responded to depolar...

journal_title：Endocrinology

authors： Hinkle PM,Nelson EJ,Haymes AA

更新日期：1993-07-01 00:00:00

abstract：:Glucose-dependent insulinotropic peptide (GIP) is a 42-amino acid peptide synthesized and secreted from endocrine cells in the small intestine. The role of GIP in coupling nutrient intake and insulin secretion, the incretin effect, is well known. We report that GIP receptor messenger RNA and protein are present in nor...

journal_title：Endocrinology

authors： Bollag RJ,Zhong Q,Phillips P,Min L,Zhong L,Cameron R,Mulloy AL,Rasmussen H,Qin F,Ding KH,Isales CM

更新日期：2000-03-01 00:00:00

abstract：:The impact of clinical progestins used in contraception and hormone therapies on the metabolic capacity of the brain has long-term implications for neurological health in pre- and postmenopausal women. Previous analyses indicated that progesterone and 17β-estradiol (E2) sustain and enhance brain mitochondrial energy-t...

journal_title：Endocrinology

authors： Irwin RW,Yao J,Ahmed SS,Hamilton RT,Cadenas E,Brinton RD

更新日期：2011-02-01 00:00:00

abstract：:Studies in mice have identified the ob gene product, leptin, as a signaling factor regulating body weight homeostasis and energy balance. Defective production of the encoded protein may be one of the causes for the development of obesity. Using a high affinity antibody, that in immunohistochemical studies specifically...

journal_title：Endocrinology

authors： McGregor GP,Desaga JF,Ehlenz K,Fischer A,Heese F,Hegele A,Lammer C,Peiser C,Lang RE

更新日期：1996-04-01 00:00:00

abstract：:To assess a potential underlying rhythm in the sensitivity of the pregnant primate myometrium to oxytocin we infused five pregnant rhesus monkeys (gestational age, 121-142 days) with oxytocin at three different periods of the 24-h day, in the order night, afternoon, and morning, via the maternal inferior vena cava. Ox...

journal_title：Endocrinology

authors： Honnebier MB,Myers T,Figueroa JP,Nathanielsz PW

更新日期：1989-09-01 00:00:00

abstract：:To ascertain if reductions in fetal plasma cortisol cause increases in fetal plasma ACTH, we treated pregnant ewes or their fetuses with aminoglutethimide (10 mg/kg BW) and metyrapone (20 mg/kg BW) and measured the hormonal responses with RIAs. When given to fetuses (n = 9) at 0.90 +/- 0.01 gestation (term-145 days), ...

journal_title：Endocrinology

authors： Rose JC,Turner CS,Ray D,Rawashdeh N

更新日期：1988-09-01 00:00:00

abstract：:Current in vivo and in vitro data indicate that progesterone (P) is required for epithelial proliferation in mammary glands of adult mice. P receptors (PgR) in adult mammary glands are under estrogenic regulation. By contrast in immature, pubertal 5-week-old mice, PgR are present only in low concentration and cannot b...

journal_title：Endocrinology

authors： Haslam SZ

更新日期：1988-02-01 00:00:00

abstract：:GH is believed to play a role in promoting insulin resistance in patients with diabetes and with GH excess. The means by which GH produces insulin resistance may be through direct suppression of glucose metabolism in target cells (insulin-independent) or by interfering with the ability of insulin to stimulate glucose ...

journal_title：Endocrinology

authors： Foster CM,Hale PM,Jing HW,Schwartz J

更新日期：1988-08-01 00:00:00

abstract：:Bone morphogenetic protein 2 (BMP2) belongs to the transforming growth factor-β superfamily and plays a critical role in regulating ovarian follicle function. Currently, the role of BMP2 during cumulus expansion remains to be determined. The aim of this study was to investigate the effect of BMP2 on the regulation of ...

journal_title：Endocrinology

authors： Bai L,Chang HM,Cheng JC,Chu G,Leung PCK,Yang G

更新日期：2017-10-01 00:00:00

abstract：:Aldo-keto-reductase 1B7/mouse vas deferens protein (AKR1B7/MVDP) is expressed in rodent steroidogenic glands and in the mouse vas deferens. In steroidogenic organs, AKR1B7/MVDP scavenges isocaproaldehyde produced from the cholesterol side-chain cleavage reaction. Akr1b7/mvdp is responsive to ACTH in adrenals and to an...

journal_title：Endocrinology

authors： Martinez A,Val P,Sahut-Barnola I,Aigueperse C,Veyssière G,Lefrançois-Martinez AM

更新日期：2003-05-01 00:00:00

abstract：:It has previously only been possible to assess osteoclastic bone resorption in intact bone, where other cell types may modify or mediate osteoclastic responses to environmental agents. We have recently developed techniques which enable us to measure bone resorption by osteoclasts extracted from bone and have used thes...

journal_title：Endocrinology

authors： Chambers TJ,McSheehy PM,Thomson BM,Fuller K

更新日期：1985-01-01 00:00:00

abstract：:Initiation of folliculogenesis through the induction of primordial follicle development in the ovary has an important role in determining the fertility and reproductive fitness of most mammalian species. The factors that control this critical process are largely unknown. The hypothesis tested in the current study was ...

journal_title：Endocrinology

authors： Parrott JA,Skinner MK

更新日期：1999-09-01 00:00:00

abstract：:The relationship between FSH-induced acquisition of LH/hCG receptors and the steroidogenic capacity of granulosa cells from estrogen-primed hypophysectomized rat ovaries has been examined. Granulosa cells harvested from the immature preantral follicles of animals not treated with FSH (controls) displayed negligible sp...

journal_title：Endocrinology

authors： Hillier SG,Zeleznik AJ,Ross GT

更新日期：1978-03-01 00:00:00

abstract：:Maternal obesity at conception increases the risk of offspring obesity, thus propagating an intergenerational vicious cycle. Male offspring born to obese dams are hyperresponsive to high fat-diets, gaining greater body weight, fat mass, and additional metabolic sequelae compared to lean controls. In this report, we id...

journal_title：Endocrinology

authors： Shankar K,Zhong Y,Kang P,Lau F,Blackburn ML,Chen JR,Borengasser SJ,Ronis MJ,Badger TM

更新日期：2011-11-01 00:00:00

abstract：:The influence of LY117018 and tamoxifen on established uterotropic influence of estradiol was examined in immature ovariectomized rats. When LY117018 was introduced on the fourth day of estradiol treatment, it regressed the uterotropic effect of estradiol. However, tamoxifen did not attenuate estradiol activity under ...

journal_title：Endocrinology

authors： Black LJ,Goode RL

更新日期：1981-09-01 00:00:00

abstract：:To determine whether the insulinotropic effects of dopamine were mediated through the adrenergic system, dogs were infused with dopamine before or after various combinations of adrenergic and cholinergic blockade. Plasma glucose levels did not change significantly throughout the individual experiments, although cardio...

journal_title：Endocrinology

authors： Cyrus J,Stagner J,Samols E

更新日期：1982-07-01 00:00:00

abstract：:As a metabolic sensor, the serine/threonine protein kinase AMP-activated protein kinase (AMPK) promotes the adaptation of cells to signals arising from nutrients, hormones, and growth factors. The ability of IGF-I to stimulate protein synthesis is suppressed by AMPK, therefore, these studies were undertaken to determi...

journal_title：Endocrinology

authors： Ning J,Xi G,Clemmons DR

更新日期：2011-08-01 00:00:00

abstract：:Experimental evidence indicates that the neonatal gonadal steroid environment is an important determinant of the sexual dimorphism of GH secretion and body growth. However, the influence of the sex steroids in GH control during adult life and their mechanism/site of action are largely unknown. In the present study we ...

journal_title：Endocrinology

authors： Painson JC,Thorner MO,Krieg RJ,Tannenbaum GS

更新日期：1992-01-01 00:00:00

abstract：:Acylation-stimulating protein (ASP) is a potent lipogenic protein produced by adipocytes. In vitro studies have shown that ASP increases triglyceride synthesis and glucose transport in both murine and human adipocytes. Our initial study indicated that complement C3-deficient (-/-) mice (and, therefore, ASP deficient) ...

journal_title：Endocrinology

authors： Murray I,Havel PJ,Sniderman AD,Cianflone K

更新日期：2000-03-01 00:00:00

abstract：:The present study was undertaken to identify the mechanisms underlying the effect of insulin-like growth factor (IGF-I) on LH receptor in rat granulosa cells. Treatment with FSH, as expected, produced a substantial increase in LH receptor messenger RNA (mRNA) level, and concurrent treatment with increasing concentrati...

journal_title：Endocrinology

authors： Hirakawa T,Minegishi T,Abe K,Kishi H,Ibuki Y,Miyamoto K

更新日期：1999-11-01 00:00:00