Abstract：
:Although parathyroid hormone (PTH) has long been known to act as a bone anabolic agent when administered intermittently, the exact underlying mechanisms remain largely unknown. Amphiregulin (AREG), a ligand of the epidermal growth factor receptor, has been identified to be a PTH target gene in vitro and in vivo. Here, we used female global AREG knockout (AREG-KO) mice to explore the role of AREG in mediating the bone anabolic effects of PTH. AREG-KO mice were characterized by unchanged distal femoral cancellous bone mass and only subtle decreases in bone mineral density (BMD) and cortical thickness at the femoral midshaft at 3 and 8 months of age, relative to wildtype controls. AREG deficiency was associated with complex changes in the mRNA expression of other EGFR ligands in femoral cancellous bone osteoblasts in situ in 3-week-old mice. To examine the bone anabolic effects of PTH in the absence and presence of AREG, we injected 3-month-old AREG-KO females and wildtype control littermates with 80 μg/kg PTH or vehicle 5 times per week over 4 weeks. Intermittent PTH treatment of AREG-KO mice led to increases in femoral trabecular and cortical BMD, cortical thickness, endocortical and periosteal bone formation, cancellous bone formation rate, and serum osteocalcin, comparable to those observed in wildtype control mice. In conclusion, our data indicate that the bone anabolic effects of PTH do not require AREG, at least in 3-month-old female mice.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Jay FF,Vaidya M,Porada SM,Andrukhova O,Schneider MR,Erben RGdoi
10.1016/j.mce.2015.09.031subject
Has Abstractpub_date
2015-12-05 00:00:00pages
158-65eissn
0303-7207issn
1872-8057pii
S0303-7207(15)30097-6journal_volume
417pub_type
杂志文章abstract：:The aim of this work was to determine whether treatments of rats with estradiol (E) in conditions known to decrease the proliferation rate, the mitotic index and the thymidine incorporation into the DNA of the MtTF4 tumor act at a specific point in the cell cycle. Two weeks after grafting a piece of tumor under the ki...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(86)90046-8
更新日期：1986-12-01 00:00:00
abstract：:Near the completion of growth, mammalian oocytes acquire the competence to resume and complete meiosis. In vivo the preovulatory LH surge triggers the resumption of meiosis in the oocyte contained in preovulatory follicles. When immature oocytes and the surrounding cumulus cells are released from their follicular envi...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(02)00270-8
更新日期：2002-11-29 00:00:00
abstract：:Hypothalamic astrocytes secrete TGF-beta and 3 alpha,5 alpha-tetrahydro progesterone (3 alpha,5 alpha-THP) in culture. When the astrocyte-conditioned medium (ACM) was incubated with the hypothalamic cell line GT1-7, it resulted in the secretion of GnRH. Immunoneutralization with TGF-beta antibody or ultra-filteration ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2005.11.017
更新日期：2006-02-26 00:00:00
abstract：:The molecular etiology of follicular thyroid tumors is largely unknown, rendering the diagnostics of these tumors challenging. The somatic alterations present in these tumors apart from RAS gene mutations and PAX8/PPARG translocations are not well described. To evaluate the profile of somatic alteration in follicular ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2016.06.007
更新日期：2016-09-15 00:00:00
abstract：:Maternal effects on early postnatal development in mammals are mediated, in part, by milk-borne bioactive factors transmitted from mother to nursing offspring. The term 'lactocrine' was coined to describe this mode of signaling. Relaxin (RLX), one of a family of neohormones found in mammals, is detectable in milk from...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2019.01.003
更新日期：2019-05-01 00:00:00
abstract：:Marsupials are a group of mammals that are under-exploited, in particular in developmental and evolutionary studies of biological systems. In this review, the roles that marsupials have played in elucidating the evolution of thyroid hormone distribution systems are summarised. Marsupials are born at very early develop...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2008.04.002
更新日期：2008-10-10 00:00:00
abstract：:Neonatal and adult rat islets, cultured for 7-9 days in the presence of 10.5 mM D-glucose, were incubated for 120 min with either D-glucose (2.8 and 16.7 mM) or L-leucine (1.0 and 20.0 mM). The total and anaerobic rates of glycolysis, as judged respectively through the generation of 3H2O from D-[5-3H]glucose and 14C-l...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(90)90045-a
更新日期：1990-10-01 00:00:00
abstract：:Diabetes exacerbates neuronal injury mediated through neurotransmitters deregulation in cerebral cortex. Our study analyzed the neuroprotective effect of curcumin to prevent cortical dysfunction associated with diabetes. Our study revealed decreased gene expression of muscarinic M1, insulin receptor, SOD, choline acet...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.07.004
更新日期：2011-01-01 00:00:00
abstract：:Peripheral benzodiazepine (BZ) binding sites (PBzS) were characterized on placental explant membranes. [3H]PK 11195, an isoquinoline carboxamide derivative, which is a ligand specific for PBzS, labeled these sites with an equilibrium dissociation constant of 2.1 nM; the maximal number of binding sites was 396 fmol/mg ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(89)90141-x
更新日期：1989-07-01 00:00:00
abstract：:Both constitutive and ligand-mediated membrane trafficking regulate Epidermal Growth Factor Receptor (EGFR) signaling. The constitutive endocytosis and recycling of the unliganded EGFR is a critical determinant of cell surface EGFR expression and the cell's sensitivity to ligands. We report that two proteins with esta...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2013.07.029
更新日期：2013-12-05 00:00:00
abstract：:Differentiation of human placental mononuclear trophoblasts into a multinucleate syncytium involves up-regulation of key proteins promoting cell fusion and increased capacity for placental hormonogenesis. It is well established that the activation of adenylyl cyclase leads to increased expression of trophoblast fusoge...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.10.013
更新日期：2011-01-30 00:00:00
abstract：:Clusterin, alpha 2-macroglobulin and testins are three novel Sertoli cell proteins whose physiological functions may be related to cell-cell interactions in the seminiferous epithelium of the testis. We have demonstrated the biosynthesis of clusterin, alpha 2-macroglobulin, and testins by Sertoli cells in vitro using ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(92)90219-v
更新日期：1992-11-01 00:00:00
abstract：:Humans maintain core temperature through a complex neuroendocrine circuitry, coupling environmental thermal and nutritional cues to heat-producing and dissipating mechanisms. Up to 40% of resting energy expenditure contributes to thermal homeostasis maintenance. Recent re-discovery of thermogenic brown adipose tissue ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2015.05.025
更新日期：2015-12-15 00:00:00
abstract：:In type 2 diabetes, a strong correlation between intramyocellular lipid accumulation and insulin resistance exists but whether intramyocellular accumulation is a cause or a consequence of insulin resistance is not clear. Lipid accumulation and response to insulin were evaluated in primary human myotubes derived from n...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2009.10.017
更新日期：2010-02-05 00:00:00
abstract：:Gonadotropins (GTHs; FSH and LH) require two major steroidal mediators, estradiol-17 beta (E(2)) and 17 alpha,20 beta-dihydroxy-4-pregnen-3-one (17 alpha,20 beta-DP) to act as critical hormones to execute oocyte growth and maturation, respectively. A two-cell type model has been proposed, where the theca cells provide...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2003.11.012
更新日期：2004-02-27 00:00:00
abstract：:Eating disorders, namely anorexia nervosa, bulimia nervosa and binge eating disorder are frequent diseases and often complicated by comorbidities, e.g. psychiatric or cardiovascular comorbidities. It is to note that also gastrointestinal symptoms/complications are frequently observed in patients with eating disorders....
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2018.10.016
更新日期：2019-11-01 00:00:00
abstract：:We have carried out further in vitro studies on the priming effect of LH-RH and the effect of steroids on pituitary responsiveness to LH-RH. In hemipituitary glands, the priming effect could be elicited only once within an 11-h period and was found to diminish significantly with time after the first exposure to LH-RH....
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(81)90003-4
更新日期：1981-12-01 00:00:00
abstract：:Loss of ovarian function has important effects on neurotransmitter production and release with corresponding effects on cognitive performance. To date, there has been little direct comparison of the effects of surgical and transitional menopause on neurotransmitter pathways in the brain. In this study, effects on mono...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2018.05.003
更新日期：2018-11-15 00:00:00
abstract：:Exposure of human decidual cells for 0.5 h to dibutyryl cAMP, isobutyl-methylxanthine (IBMX), cholera toxin or forskolin caused a dose-dependent inhibition of prolactin release with maximal inhibition by each agent of 50-60%. Dibutyryl cAMP (5 mM), IBMX (0.5 mM), and cholera toxin (10 micrograms/ml) also inhibited pro...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(87)90081-5
更新日期：1987-03-01 00:00:00
abstract：:The initiation of transcription is accomplished via interactions of many different proteins with common and gene-specific regulatory motifs. Clearly, sequence-specific transcription factors play a crucial role in the specificity of transcription initiation. A group of sequence-specific DNA-binding proteins, related to...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(02)00221-6
更新日期：2002-09-30 00:00:00
abstract：:To define the heparin-binding site of follistatin, the reduced and S-carboxymethylated recombinant human follistatin containing 288 amino acids was digested by Staphylococcus aureus V8. The digested product was subjected to sulfate cellufine column chromatography and the adsorbed peptide fragments eluted with a stepwi...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(92)90094-m
更新日期：1992-12-01 00:00:00
abstract：:Estrogen receptor β (ERβ) and its isoforms have different putative functions and expression patterns in prostate cancer. Current studies on 5'-most exons, 0K and 0N, show that their respective promoters are actively involved in transcription. These data, however, do not explain why ERβ isoforms are differentially expr...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2013.06.023
更新日期：2013-08-25 00:00:00
abstract：:The introduction of a targeted insertion mutation into exon 2 of the gene coding for the glucocorticoid receptor (GR) enabled production of glucocorticoid receptor knock-out (GRKO) mice. GRKO mice on a C57BL/6/129sv mixed genetic background show a variable phenotype, with 90% of -/- mice dying at birth with respirator...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(00)00407-x
更新日期：2001-02-28 00:00:00
abstract：:The cellular content of preuteroglobin mRNA in endometrium was measured by molecular hybridization to preuteroglobin cDNA, and compared with uteroglobin content in the uterine secretion as determined by radioimmunoassay. The following results were obtained. (1) A single injection of either estradiol or progesterone le...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(81)90051-4
更新日期：1981-02-01 00:00:00
abstract：:Little is known about the regulation and cellular distribution of androgen receptors (ARs) in female rodent brains at various stages of the oestrous cycle. This information is critical for further studies of androgen signalling in the regulation of brain function under physiological and pathophysiological conditions. ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.02.029
更新日期：2010-06-10 00:00:00
abstract：:Incorporation of p-chloromercuribenzene sulphonate (PCMBS) (1mM) in the assay medium for rat hepatic lactogenic receptor produced complete inhibition of binding of [125I]oPRL to the membrane. However, the presence of the thiol-reactive agent produced no effect on the binding of [125I]bGH to rat hepatic somatogenic rec...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(84)90145-x
更新日期：1984-11-01 00:00:00
abstract：:The mechanism by which hCG increases the rat testicular vascular permeability was studied by injecting the testes with hCG (0.1-100 ng) together with testicular interstitial fluid (150 mul) or with the fluid alone (control) and measuring the uptake of i.v. injected [125I]hCG and the interstitial fluid volume in the te...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(86)90138-3
更新日期：1986-05-01 00:00:00
abstract：:We have previously demonstrated that maternal undernutrition during either the 'periconceptional' (i.e. from 60 days (d) before until 7 d after mating) or 'gestational' periods (i.e. from 8 d after mating until the end of pregnancy) have differential effects on the subsequent development of the hypothalamo-pituitary-a...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(02)00256-3
更新日期：2002-10-31 00:00:00
abstract：:Although well-established, the underlying mechanisms involved in obesity-related plasma adiponectin decline remain elusive. Oxidative stress is associated with obesity and insulin resistance and considered to contribute to the progression toward obesity-related metabolic disorders. In this study, we investigated the e...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2011.10.027
更新日期：2012-02-26 00:00:00
abstract：:The activity of the two cAMP-dependent protein kinases (PKa I and PKa II) was evaluated in dog thyroid cells in primary cultures after a 6-day growth period induced by either thyrotropin (TSH) or epidermal growth factor (EGF). Although the total PKa activity was not affected in cells cultured in the presence of TSH or...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(89)90188-3
更新日期：1989-01-01 00:00:00
