TRH Action Is Impaired in Pituitaries of Male IGSF1-Deficient Mice.

abstract：:The action of the cyclic peptide polymyxin B (a well known inhibitor of protein kinase C) on adrenal steroid synthesis was examined with Y-1 adrenal tumor cells. Polymyxin B produces a biphasic effect on the stimulation of steroid synthesis by 2 nM ACTH in these cells, with inhibition at low concentrations (less than ...

journal_title：Endocrinology

authors： Widmaier EP,Iida S,Hall PF

更新日期：1987-07-01 00:00:00

abstract：:There is strong evidence that kisspeptin acts to regulate GnRH secretion, but whether there is also a component of action on the gonadotropes is not clear. Using quantitative RT-PCR, we found that G protein-coupled receptor-54 mRNA is expressed in ovine pituitary cell fractions enriched for gonadotropes as well as in ...

journal_title：Endocrinology

authors： Smith JT,Rao A,Pereira A,Caraty A,Millar RP,Clarke IJ

更新日期：2008-04-01 00:00:00

abstract：:Ewes were treated systemically during the periovulatory period with the antihistamines diphenhydramine (H1-receptor antagonist) and(or) cimetidine (H2-receptor antagonist). None of the treatments prevented ovulation. However, the combination of drugs inhibited subsequent function of the corpus luteum (CL) as assessed ...

journal_title：Endocrinology

authors： Halterman SD,Murdoch WJ

更新日期：1986-12-01 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

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：:The specific biological function of the cell surface or membrane-bound isoform of colony-stimulating factor-1 (mCSF-1) is not well understood. To help define the role of this isoform in bone, we developed a transgenic mouse in which targeted expression of human mCSF-1 in osteoblasts was achieved under the control of t...

journal_title：Endocrinology

authors： Yao GQ,Wu JJ,Sun BH,Troiano N,Mitnick MA,Insogna K

更新日期：2003-08-01 00:00:00

abstract：:This study uses a high purity cell culture system to extend previous observations of factors controlling the end of the Sertoli cell proliferative phase. Thyroid hormone, retinoic acid, and testosterone were assessed for their ability to halt the proliferative phase and regulate the expression of markers associated wi...

journal_title：Endocrinology

authors： Buzzard JJ,Wreford NG,Morrison JR

更新日期：2003-09-01 00:00:00

abstract：:Recent evidence suggests that growth hormone-releasing peptides (GHRPs) mimic an unidentified native GH-releasing hormone (GHRH)-amplifying hormone. GHRH has been shown to stimulate food intake acting on the central nervous system. The present studies were conducted to test the hypothesis that GHRPs may also potentiat...

journal_title：Endocrinology

authors： Okada K,Ishii S,Minami S,Sugihara H,Shibasaki T,Wakabayashi I

更新日期：1996-11-01 00:00:00

abstract：:Purified rat Leydig cell cytosol was found to contain a protein kinase which was dependent on the presence of both calcium and phospholipids (phosphatidylserine and diolein), i.e. calcium/phospholipid-dependent protein kinase. The peak of Ca/phospholipid-dependent protein kinase was separated from type I and type II c...

journal_title：Endocrinology

authors： Lin T

更新日期：1985-07-01 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：:Our previous work suggests that persistent protein malnutrition in immature domestic fowl (Gallus gallus domesticus) alters ACTH-adrenocortical cell interaction, possibly including ACTH receptors. To investigate this possibility, we measured some ACTH receptor parameters in isolated adrenocortical cells from normal an...

journal_title：Endocrinology

authors： Carsia RV,Weber H

更新日期：1988-02-01 00:00:00

abstract：:The long-acting synthetic enkephalin FK 33-824 (FK) potently inhibits LH secretion in gonadectomized prepubertal male and female rats. The effect is reversible by coinjection of naloxone. We have observed an age-related decrease in the ability of FK to reduce LH secretion in the 48 h post-gonadectomized rat. Thus, the...

journal_title：Endocrinology

authors： Wilkinson M,Bhanot R

更新日期：1982-03-01 00:00:00

abstract：:Lipoprotein lipase (LPL) is a key regulator of triglyceride clearance. Its coordinated regulation during feeding and fasting is critical for maintaining lipid homeostasis and energy supply. Angiopoietin-like (Angptl)3 and Angptl4 are secreted proteins that have been demonstrated to regulate triglyceride metabolism by ...

journal_title：Endocrinology

authors： Köster A,Chao YB,Mosior M,Ford A,Gonzalez-DeWhitt PA,Hale JE,Li D,Qiu Y,Fraser CC,Yang DD,Heuer JG,Jaskunas SR,Eacho P

更新日期：2005-11-01 00:00:00

abstract：:Vascular smooth muscle cells (SMC) are major constituents of the medial layer of blood vessels and are involved in the development of atherosclerotic plaque. SMC secrete copious IL-6 under basal conditions that can be increased by cytokines such as tumor necrosis factor-alpha and interleukin-1beta (IL-1beta). The goal...

journal_title：Endocrinology

authors： Maret A,Clamens S,Delrieu I,Elhage R,Arnal JF,Bayard F

更新日期：1999-06-01 00:00:00

abstract：:We investigated the effect of central serotonin (5-hydroxytryptamine, 5-HT) administration on hypothalamic tuberoinfundibular dopamine neurons and related changes in neuronal activity to circulating PRL levels in two physiological models: 1) pregnant rats expressing (day 8) or not expressing (days 11 and 16) PRL surge...

journal_title：Endocrinology

authors： Mathiasen JR,Tomogane H,Voogt JL

更新日期：1992-12-01 00:00:00

abstract：:We analyzed the mechanism by which a Graves' disease-associated C/T polymorphism in the Kozak sequence of CD40 affects CD40 expression. CD40 expression levels on B cells in individuals with CT and TT genotypes were decreased by 13.3 and 39.4%, respectively, compared with the levels in CC genotypes (P = 0.012). Similar...

journal_title：Endocrinology

authors： Jacobson EM,Concepcion E,Oashi T,Tomer Y

更新日期：2005-06-01 00:00:00

abstract：:We previously reported that TNF-alpha-induced apoptosis of lactotropes is estrogen dependent and predominant at proestrus. Here we observed that TNF-alpha (50 ng/ml) failed to induce apoptosis of anterior pituitary cells from ovariectomized rats cultured in the presence of progesterone (10(-6) m). However, progesteron...

journal_title：Endocrinology

authors： Candolfi M,Jaita G,Zaldivar V,Zárate S,Ferrari L,Pisera D,Castro MG,Seilicovich A

更新日期：2005-02-01 00:00:00

abstract：:Suppression of spermatogenesis in LBNF1 rats by treatment with the GnRH agonist Zoladex combined with the antiandrogen flutamide was evaluated in order to rapidly achieve protection of spermatogenic stem cells against procarbazine with clinically used drugs. Zoladex-flutamide treatment required 3 weeks to suppress the...

journal_title：Endocrinology

authors： Kangasniemi M,Wilson G,Huhtaniemi I,Meistrich ML

更新日期：1995-08-01 00:00:00

abstract：:Neonatal thymectomy at 3 days of age in mice results in ovarian dysgenesis, characterized by early follicular and oocyte loss, followed by a high incidence of ovarian tumorigenesis. Thymectomized animals with dysgenetic ovaries had extremely high levels of circulating PRL and gonadotropins before the appearance of the...

journal_title：Endocrinology

authors： Michael SD,Taguchi O,Nishizuka Y

更新日期：1981-06-01 00:00:00

abstract：:Leptin, a pleiotropic adipokine, is a central regulator of appetite and weight and a key immunomodulatory protein. Although inborn leptin deficiency causes weight gain, it is unclear whether induced leptin deficiency in adult wild-type animals would be orexigenic. Previous work with a potent competitive leptin antagon...

journal_title：Endocrinology

authors： Elinav E,Niv-Spector L,Katz M,Price TO,Ali M,Yacobovitz M,Solomon G,Reicher S,Lynch JL,Halpern Z,Banks WA,Gertler A

更新日期：2009-07-01 00:00:00

abstract：:The PRL-stimulating effect of metoclopramide (2-methoxy-5-chloroprocainamide) was examined in normal and adrenalectomized male rats pretreated with DL-p-chlorophenylalanine methyl ester (PCPA), an inhibitor of serotonin biosynthesis. PCPA significantly reduced the hypothalamic content of serotonin, increased basal PRL...

journal_title：Endocrinology

authors： Fang VS,Shian LR

更新日期：1981-05-01 00:00:00

abstract：:The effect of osmotic changes on aldosterone production, [Ca2+]i and voltage-gated Ca2+ currents, was studied in cultured rat glomerulosa cells. Alteration of osmolarity by sucrose addition in the 250-330 mosM range did not influence aldosterone production per se, but it substantially affected K+-stimulated aldosteron...

journal_title：Endocrinology

authors： Makara JK,Petheö GL,Tóth A,Spät A

更新日期：2000-05-01 00:00:00

abstract：:Isoforms of the recently cloned vesicular glutamate transporters (VGLUT1-3) selectively accumulate glutamic acid into synaptic vesicles in excitatory axon terminals and are viewed as reliable markers for glutamatergic neurons. Our present studies provided dual-label in situ hybridization evidence that virtually all (9...

journal_title：Endocrinology

authors： Hrabovszky E,Turi GF,Kalló I,Liposits Z

更新日期：2004-09-01 00:00:00

abstract：:An estrogen-binding protein (EBP) has been identified and characterized in the cytosol of the pathogenic yeast Candida albicans. Binding of [3H]estradiol was found to be optimal at pH 7.4 in the presence of 0.3 M KCl and was linearly related to protein concentration. Binding was very rapid, reaching maximal levels in ...

journal_title：Endocrinology

authors： Skowronski R,Feldman D

更新日期：1989-04-01 00:00:00

abstract：:Changes in serum and pituitary LH and FSH concentrations have been measured in the newborn male rat before, during, and up to 24 h after birth. A sudden and transient increase of serum and pituitary gonadotropins is observed at birth, which is followed by a rapid increase of absolute and relative testicular weights be...

journal_title：Endocrinology

authors： Corbier P,Kerdelhue B,Picon R,Roffi J

更新日期：1978-12-01 00:00:00

abstract：:Once reserved solely for the treatment of short stature, the now readily available recombinant GH has expanded the use of the hormone to include the treatment of cardiovascular, renal, muscular, skeletal, immunological, psychosocial, and metabolic abnormalities associated with GH deficiency. There are also proposals f...

journal_title：Endocrinology

authors： Thangavel C,Shapiro BH

更新日期：2007-06-01 00:00:00

abstract：:The absence of TSH-stimulated radioiodide uptake in differentiated thyroid cancer is associated with a high recurrence rate and reduced survival. We studied regulation of the sodium/iodide symporter gene in human papillary thyroid cancer cell lines (BHP) and primary human thyroid cells. BHP cells expressed very low le...

journal_title：Endocrinology

authors： Kogai T,Hershman JM,Motomura K,Endo T,Onaya T,Brent GA

更新日期：2001-08-01 00:00:00

abstract：:The roles of alpha- and beta-subunits of human TSH (hTSH) were studied by investigating the inhibitory effects of monoclonal antibodies on the biological activity of hTSH. Four monoclonal antibodies directed toward different epitopes on the beta-subunit (hTSH beta) inhibited completely the receptor binding of hTSH to ...

journal_title：Endocrinology

authors： Endo Y,Tetsumoto T,Nagasaki H,Kashiwai T,Tamaki H,Amino N,Miyai K

更新日期：1990-07-01 00:00:00

abstract：:TSH is the most important biomarker in the interpretation of thyroid function in man. Its levels are determined by circulating thyroid hormone (TH) levels that feed back centrally to regulate the expression of the subunits that comprise TSH from the pituitary. The nuclear corepressor 1 (NCoR1), is a critical coregulat...

journal_title：Endocrinology

authors： Costa-e-Sousa RH,Astapova I,Ye F,Wondisford FE,Hollenberg AN

更新日期：2012-10-01 00:00:00

abstract：:Somatostatin has been demonstrated to negatively regulate pancreatic growth in vivo. In this study we used the AR4-2J rat pancreatic acinar tumor cell line to investigate the effect of a stable somatostatin analog, SMS 201-995 (SMS) on cell proliferation. SMS induced an antiproliferative effect on both serum or epider...

journal_title：Endocrinology

authors： Viguerie N,Tahiri-Jouti N,Ayral AM,Cambillau C,Scemama JL,Bastié MJ,Knuhtsen S,Estève JP,Pradayrol L,Susini C

更新日期：1989-02-01 00:00:00