Effect of a potent GnRH antagonist and testosterone propionate on mating behavior and fertility in the male rat.

abstract：:The insulin-like growth factors (IGF)-I and -II are bound to specific carrier proteins in the circulation. For investigation of their physiological role, the acid-stable subunit of the major binding protein (SmBP) was isolated from human plasma Cohn fraction IV. Its effect on the mitogenic activity of IGF-I was studie...

journal_title：Endocrinology

authors： Blum WF,Jenne EW,Reppin F,Kietzmann K,Ranke MB,Bierich JR

更新日期：1989-08-01 00:00:00

abstract：:In female mammals, reproduction is sensitive to the availability of metabolic fuels, and food deprivation has been shown to suppress pulsatile LH secretion, attenuate the preovulatory LH surge, and prevent ovulation. It has been suggested that food deprivation impairs fertility by reducing the secretion of GnRH by GnR...

journal_title：Endocrinology

authors： Berriman SJ,Wade GN,Blaustein JD

更新日期：1992-11-01 00:00:00

abstract：:Acute effects of bisphenol (BPA), an environmental chemical, on estradiol (17α or β-E2)-dependent recognition memory and dendritic spines in the medial prefrontal cortex and hippocampus were investigated in adult female rats. Ovariectomized rats received BPA 30 min before or immediately after a sample trial (viewing o...

journal_title：Endocrinology

authors： Inagaki T,Frankfurt M,Luine V

更新日期：2012-07-01 00:00:00

abstract：:Bombesin was injected into the cerebral ventricle of male rats anesthetized with urethane to study its effect on plasma levels of immunoreactive somatostatin (IRS) in hypophysial portal and jugular blood. An intraventricular injection of bombesin (0.2 and 2 micrograms/rat) caused a significant and dose-related increas...

journal_title：Endocrinology

authors： Abe H,Chihara K,Minamitani N,Iwasaki J,Chiba T,Matsukura S,Fujita T

更新日期：1981-07-01 00:00:00

abstract：:Owing to the prevalence of depression during childbearing, mothers can be prescribed multiple antidepressants; however, little is known about the risk and consequences to the offspring or subsequent generations. Fluoxetine (FLX) is usually the first-line of pharmacological treatment for affective disorders in pregnant...

journal_title：Endocrinology

authors： Vera-Chang MN,Moon TW,Trudeau VL

更新日期：2019-09-01 00:00:00

abstract：:The importance of a central or peripheral site of action in the blockade of ovulation induced by LHRH antagonists was investigated. To determine if hCG could induce ovulation in cycling animals given antiovulatory doses of 10 or 100 micrograms [N-Ac-D-p-Cl-Phe1,D-p-Cl-Phe2,D-Trp3,D-Arg6,D-Ala10] LHRH, the antagonist w...

journal_title：Endocrinology

authors： Nekola MV,Coy DH

更新日期：1985-02-01 00:00:00

abstract：:The influence of administration of ovine prolactin in vivo on intestinal fluid and ion transport in vitro was investigated using intact and hypophysectomized male rats. Prolactin administration significantly stimulated fluid, sodium,potassium, calcium, magnesium and chloride transport across everted jejunal sacs. The ...

journal_title：Endocrinology

authors： Mainoya JR

更新日期：1975-05-01 00:00:00

abstract：:Administration of GH increases both the tubular reabsorption of inorganic phosphate (Pi) and the plasma level of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3]. These two effects could be induced by a common mediator, possibly the GH-generated insulin-like growth factor 1 (IGF-1). In the present work, the influence of recomb...

journal_title：Endocrinology

authors： Caverzasio J,Montessuit C,Bonjour JP

更新日期：1990-07-01 00:00:00

abstract：:The main objectives of the present study were to investigate the effects of 6-n-propyl-2-thiouracil (PTU) on Sertoli cell proliferation, germ cell number, and testis size in Nile tilapias (Oreochromis niloticus). In this regard, young fish (approximately 1 g BW and approximately 3.5 cm total in length) were treated fo...

journal_title：Endocrinology

authors： Matta SL,Vilela DA,Godinho HP,França LR

更新日期：2002-03-01 00:00:00

abstract：:MCF-7 cells migrate through vitronectin-coated filters in response to insulin-like growth factor I (IGF-I); migration is inhibited by the matrix metalloproteinase (MMP) inhibitor BB-94, but not by the serine proteinase inhibitor aprotinin. MMP-9 was identified in the conditioned medium of MCF-7 cells; in addition, flu...

journal_title：Endocrinology

authors： Mira E,Mañes S,Lacalle RA,Márquez G,Martínez-A C

更新日期：1999-04-01 00:00:00

abstract：:Early obesity and late onset of insulin resistance associated with hormonal imbalances occur in FSH receptor-deficient follitropin receptor knockout female mice. This study tests the hypothesis that chronic high-fat diet aggravates obesogenic changes in a depot-specific manner and explores some molecular links of horm...

journal_title：Endocrinology

authors： Zhang H,Chen X,Aravindakshan J,Sairam MR

更新日期：2007-12-01 00:00:00

abstract：:The binding of [125I]iodo-low density lipoprotein ([125I]iodo-LDL) to isolated membranes was determined for the outer (glomerulosa/fasciculata) and inner (reticularis) zones of the guinea pig adrenal cortex. Binding of [125I]iodo-LDL to membranes from both zones was found to be highly specific and dependent on the pre...

journal_title：Endocrinology

authors： Nonomura K,Obara T,Strott CA

更新日期：1986-02-01 00:00:00

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：:Monoclonal antibodies that bind to the TSH receptor were obtained by an autoantiidiotypic approach in which immunization of BALB/c mice was performed with mixtures of bovine (b) and human (h) TSH. Two of 28 positive wells were selected for cloning and characterization: D2 and 4G11. Their antiidiotypic character was ev...

journal_title：Endocrinology

authors： Hill BL,Erlanger BF

更新日期：1988-06-01 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：:Angiotensin-II (Ang-II), K+, and ACTH are important stimulators of aldosterone secretion that require Ca2+ influx to be active. However, Ang-II and K+ are linked to the Ca2+ messenger system, while ACTH is coupled to the cAMP pathway. Peripheral-type binding sites for benzodiazepines are particularly abundant in stero...

journal_title：Endocrinology

authors： Python CP,Rossier MF,Vallotton MB,Capponi AM

更新日期：1993-04-01 00:00:00

abstract：:The effect of fibroblast growth factor (FGF) on LH-stimulated testosterone production was investigated using primary cultures of rat testicular cells. Testicular cells obtained from neonatal rats (8-9 days of age) were maintained in culture for 3 days and then challenged with LH with or without basic FGF. After 3 addi...

journal_title：Endocrinology

authors： Fauser BC,Baird A,Hsueh AJ

更新日期：1988-12-01 00:00:00

abstract：:The effects of FFA on circulating LH and GH concentrations in ovariectomized ewe lambs were investigated. Lambs (n = 14) were weaned at 2.5 months, ovariectomized at 6.5 months, and used at 8.5 months of age. From weaning until day 0 of the experiment, lambs were fed to maintain body weights (23 kg). On day 0, serum F...

journal_title：Endocrinology

authors： Estienne MJ,Schillo KK,Hileman SM,Green MA,Hayes SH,Boling JA

更新日期：1990-04-01 00:00:00

abstract：:The initiation of mammalian puberty requires an increase in pulsatile release of GnRH from the hypothalamus. This increase is brought about by coordinated changes in transsynaptic and glial-neuronal communication. As the neuronal and glial excitatory inputs to the GnRH neuronal network increase, the transsynaptic inhi...

journal_title：Endocrinology

authors： Ojeda SR,Lomniczi A,Mastronardi C,Heger S,Roth C,Parent AS,Matagne V,Mungenast AE

更新日期：2006-03-01 00:00:00

abstract：:Analyses of FSH secretion suggest pulsatile, nonpulsatile, or compositely pulsatile and nonpulsatile release modes. This may reflect the reduced signal-to-noise ratio inherent in FSH pulse estimation procedures and/or immunological-biological assay inconsistencies. To address these issues, we sampled cavernous sinus a...

journal_title：Endocrinology

authors： Clarke I,Moore L,Veldhuis J

更新日期：2002-01-01 00:00:00

abstract：:Changes in insulin, somatostatin, and glucagon secretion during the development of obesity in rats after ventromedial hypothalamic (VMH) lesions were evaluated by measuring fasting hormone levels and their secretion from the isolated perfused pancreas. Fasting peripheral insulin levels were not altered 1 week after th...

journal_title：Endocrinology

authors： Seino Y,Seino S,Takemura J,Tsuda K,Nishi S,Ishida H,Seno M,Usami M,Ikeda M,Imura H

更新日期：1984-02-01 00:00:00

abstract：:Patients with Graves' disease and exophthalmos demonstrate delayed hypersensitivity to antigens present in extracts of certain normal human tissue; namely,thyroid gland and retroorbital tissue. The delayed hypersensitivity can be assayed in vitro by quantitating the amount of a lymphokine, migration inhibition factor ...

journal_title：Endocrinology

authors： Mullin BR,Levinson RE,Friedman A,Henson DE,Winand RJ,Kohn LD

更新日期：1977-02-01 00:00:00

abstract：:Insulin radioreceptor assays were developed using splenic leukocytes and peripheral erythrocytes from individual mice. Splenic leukocytes were prepared using an NH4Cl buffer which did not alter insulin binding, but gave much higher yields than density gradient methods. Mouse erythrocytes were isolated from heparinized...

journal_title：Endocrinology

authors： Shimizu F,Kahn CR

更新日期：1982-02-01 00:00:00

abstract：:Inhibin was first characterized in mammals as a gonadal dimeric protein that inhibited pituitary follicle-stimulating hormone (FSH) secretion. As in mammals, the inhibin-specific α subunit (INHA/Inha/inha) has also been characterized in teleosts; however, its functions and physiological importance in fish reproduction...

journal_title：Endocrinology

authors： Lu H,Zhao C,Zhu B,Zhang Z,Ge W

更新日期：2020-12-01 00:00:00

abstract：:Exposure of FRTL-5 cells to iodide (I-) in excess of 3 microM suppresses the concentrative uptake of I-. The depression of I- uptake measured at the steady state is due to decrease in the rate of I- influx and not to an effect on I- efflux. Exposure to NaI is associated with decreased T4 secretion and also depressed N...

journal_title：Endocrinology

authors： Grollman EF,Smolar A,Ommaya A,Tombaccini D,Santisteban P

更新日期：1986-06-01 00:00:00

abstract：:During the preovulatory and estradiol-progesterone-induced GnRH-LH surge, a subpopulation of GnRH neurons transiently expresses the transcription factor c-fos, which is a useful marker of cell activation. To further characterize this subpopulation of GnRH neurons, multiple immunohistochemical procedures were applied t...

journal_title：Endocrinology

authors： Eyigor O,Jennes L

更新日期：2000-02-01 00:00:00

abstract：:The sympathetic nervous system is a physiological regulator of bone homeostasis. Autonomic nerves are indeed present in bone, bone cells express the β2-adrenergic receptors (β2AR), and pharmacological or genetic disruption of sympathetic outflow to bone induces bone gain in rodents. These recent findings implied that ...

journal_title：Endocrinology

authors： Ma Y,Nyman JS,Tao H,Moss HH,Yang X,Elefteriou F

更新日期：2011-04-01 00:00:00

abstract：:Calcium (Ca2+) ionophore A23187 increased the intracellular cAMP content and PRL release in normal rat anterior pituitary cells. Cotreatment with dopamine reduced both control and A23187-stimulated cAMP accumulation and PRL release. The dopamine antagonist spiperone restored the response of cAMP to ionophoric stimulat...

journal_title：Endocrinology

authors： Schettini G,Cronin MJ,MacLeod RM

更新日期：1983-05-01 00:00:00

abstract：:Dexamethasone-induced changes in insulin and epidermal growth factor (EGF) receptor number, autophosphorylation, and kinase activity were studied in intact rat hepatocytes. Hepatocytes were freshly isolated from Sprague-Dawley rats treated with dexamethasone (1 mg/kg) for 4 days and from untreated littermates. Dexamet...

journal_title：Endocrinology

authors： Karasik A,Kahn CR

更新日期：1988-11-01 00:00:00

abstract：:The effect of bovine corneal extracellular matrix (ECM) on gonadotropin-primed rat granulosa cells in vitro was studied by examining the following parameters: 1) rate of cell attachment to culture dishes; 2) modulation of cell morphology; 3) specific binding of [125I]human(h)CG to LH/hCG receptors; 4) cAMP response to...

journal_title：Endocrinology

authors： Furman A,Rotmensch S,Kohen F,Mashiach S,Amsterdam A

更新日期：1986-05-01 00:00:00