Abstract：
:The effects of calcitonin (CT) on the cellular transport and accumulation of Ca were studied in bone cells grown in primary culture. The following sequence of events was detected: (1) After 1--2 h of incubation with CT the initial rate of Ca influx into bone cells transiently increased. A longer incubation with CT (3--24 h), caused a gradual decrease in the initial rate of Ca influx, reaching a level below the control at 24 h. (2) After 2 h incubation with CT, efflux studies revealer Ca pool and (b) an increase in the accumulation of Ca in the slow-turnover Ca pool. (3) After 30 min of incubation with CT the amount of Ca in bone cells gradually increased and remained at a higher level for up to 24 h incubation with CT. It is suggested that the transient increase in the initial rate of Ca influx into bone cells, caused by CT, may provide the signal for the accumulation of Ca in the slow-turnover Ca pool, which is probably the mitochondria.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Eilam Y,Szydel N,Harell Adoi
10.1016/0303-7207(80)90067-2subject
Has Abstractpub_date
1980-06-01 00:00:00pages
215-25issue
3eissn
0303-7207issn
1872-8057journal_volume
18pub_type
杂志文章abstract：:Recent developments in the regulation of testicular Leydig-cell function support the following conclusions. (1) Enzymic activities involved in steroid production in the testis are mainly localized in Leydig cells. The aromatase enzyme complex for oestrogen production appears to be localized in Leydig cells as well as ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/0303-7207(81)90026-5
更新日期：1981-01-01 00:00:00
abstract：:The Nile tilapia, Oreochromis niloticus, is a gonochoristic teleost fish with an XX/XY genetic system and is an excellent model for gonadal sex differentiation. In the present study, we screened novel genes that were expressed predominantly in either XY or XX undifferentiated gonads during the critical period for diff...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2015.08.008
更新日期：2015-11-05 00:00:00
abstract：:Cell-based studies previously showed that the ATP-binding cassette transporter A1 (ABCA1) transfers cholesterol across mammary epithelial cells (MEC). Data for phospholipid transport are lacking, and it is unclear from which cellular source the transported cholesterol stems, whether this transport activates signaling ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2016.10.016
更新日期：2017-01-05 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：:The role of the carboxyl terminal F-domain of estrogen receptor (ERalpha) is uncertain, but evidence suggests that this region may impart internal restraint on ER dimerization in the presence of 17beta-estradiol (E2). To identify the C-terminal residues affecting human ERalpha activation, we created a series of deleti...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2008.08.001
更新日期：2008-11-25 00:00:00
abstract：:We have used plus-minus hybridization to identify Xenopus liver cDNA clones of mRNAs whose levels are regulated by estrogen. One clone identified in this way was shown to be a nearly full-length cDNA clone of the mRNA coding for a small 22 000 dalton estrogen-inducible serum protein (EISP). Quantitation of EISP mRNA l...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(85)90124-8
更新日期：1985-02-01 00:00:00
abstract：:Somatostatin has been discovered as a somatotroph release inhibitory factor (SRIF), and, indeed, it has been demonstrated that SRIF and its analogs can inhibit pituitary tumor hormone secretion and control neoplastic bulk. Several in vitro studies have contributed to the current knowledge of the mechanisms by which SR...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2007.12.010
更新日期：2008-05-14 00:00:00
abstract：:Retinoic acid receptors (RARs) activate transcription by recruiting coactivator complexes such as histone acetyltransferases (HAT) and the mediator complex, to increase chromatin accessibility by general transcription factors and to promote transcription initiation. Indirect evidences have suggested a role for the ATP...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2007.02.004
更新日期：2007-05-30 00:00:00
abstract：:The higher prevalence of thyroid disease in women suggests that estrogen (E2) might be involved in the pathophysiology of thyroid dysfunction. To approach the question of the effect of stromal cells in the modulation of thyroid epithelial cells activity, we established and characterized a homogeneous stromal cell popu...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2011.02.001
更新日期：2011-04-30 00:00:00
abstract：:Recently, a remarkable progress has been made in our understanding about the role of sex steroids in male physiology. In this paper, we consider the clinical aspects of congenital estrogen deficiency - notably, estrogen resistance and aromatase deficiency - in men and we discuss both well-established and supposed estr...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(01)00432-4
更新日期：2001-06-10 00:00:00
abstract：:Urine based gonadotropin assays provide a practical means of analyzing hormone secretion patterns. While research protocols have revealed pulsatile patterns of gonadotropins such as LH in the blood, these assays are of limited clinical use since daily venipuncture sampling is not feasible outside of a research environ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2006.02.020
更新日期：2007-01-02 00:00:00
abstract：:The involvement of continuous protein synthesis in the mechanisms of crustacean steroidogenesis was investigated using crayfish molting glands (Y-organs). During intermolt, Y-organ steroidogenic activity is low. Eyestalk ablation initiates premolt which is characterized by a rapid increase in the production of ecdyste...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(95)03489-t
更新日期：1995-03-01 00:00:00
abstract：:Lipid storage and adipokine secretion are critical features of adipocytes. Annexin A6 (AnxA6) is a lipid-binding protein regulating secretory pathways and its role in adiponectin release was examined. The siRNA-mediated AnxA6 knock-down in 3T3-L1 preadipocytes impaired proliferation, and differentiation of AnxA6-deple...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2016.09.033
更新日期：2017-01-05 00:00:00
abstract：:We studied the influence of thyroid hormones and vitamin A status on the regulation of UDP-glucuronosyltransferase (UGT) expression and the glucuronidation of thyroid hormones by UGTs. For this, we used an original model of rats fed with different vitamin A diets and implanted subcutaneously by osmotic minipumps deliv...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(01)00681-5
更新日期：2002-04-25 00:00:00
abstract：:The regulation of the insulin receptor by cAMP has been examined in glial C6 cells. Incubation for 48 h with dibutyryl cyclic AMP produced a dose-dependent inhibition of 125I-insulin binding to the cells. Other agents that elevate intracellular cAMP levels such as forskolin and cholera toxin mimicked the effect of thi...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(89)90127-5
更新日期：1989-02-01 00:00:00
abstract：:The effects of cholera toxin on the responses of cultured Sertoli cells were compared with those elicited by follicle-stimulating hormone (FSH), and N6O2'-dibutyryl-3',5'-cyclic AMP (bu2cAMP). Addition of FSH or cholera toxin increased cAMP levels. Subsequently there was greater rates of conversion of testosterone to ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(76)90090-3
更新日期：1976-08-01 00:00:00
abstract：:The 11 beta-hydroxysteroid dehydrogenase type II enzyme (11 beta HSD2) converts cortisol into mineralocorticoid receptor inactive cortisone, thus preventing occupation of the non-selective mineralocorticoid receptor by glucocorticoids in the kidney. Mutations generating inactive enzymes have been described in the HSD1...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(96)03787-2
更新日期：1996-05-17 00:00:00
abstract：:Steroid sulfatase plays a pivotal role in regulating the formation of biologically active steroids from inactive steroid sulfates. It is responsible for the hydrolysis of estrone sulfate and dehydroepiandrosterone sulfate to estrone and dehydroepiandrosterone, respectively, both of which can be subsequently reduced to...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2011.06.012
更新日期：2011-07-04 00:00:00
abstract：:A large part of germ cells die apoptotically during testicular development in rodents. In the present study, a wave of germ cell apoptosis was observed between days 10 and 30 of postnatal life by in situ 3'-end labeling and DNA fragmentation analysis. To explore the potential involvement of Bcl-2 family members in thi...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(00)00257-4
更新日期：2000-07-25 00:00:00
abstract：:Aggresome formation, a cellular response to misfolded protein aggregates, is linked to cancer and neurodegenerative disorders. Previously we showed that Gag-v-ErbA (v-ErbA), a retroviral variant of the thyroid hormone receptor (TRα1), accumulates in and sequesters TRα1 into cytoplasmic foci. Here, we show that foci re...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.10.012
更新日期：2011-01-30 00:00:00
abstract：:An enzyme system capable of monodeiodinating T4 to T3 and to rT3 in a microsomal fraction of normal human thyroid tissue is characterized. The pH optimum for 5'-monodeiodination of T4 to T3 was around 7.0 The Km (apparent) for the conversion of T4 to T3 was 5.7 mumoles/l. PTU, ipodate and rT3 inhibited T4 deiodination...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(84)90099-6
更新日期：1984-10-01 00:00:00
abstract：:In order to differentiate whether activation of NaK-ATPase in thyroid thermogenesis is due to increased numbers of active 'sodium pump' units or due to a change in the kinetics of the enzyme, the effect of T3 on activation energy (Ea) of NaK-ATPase was determined in rat liver, kidney and brain. Injection of T3 produce...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(77)90107-1
更新日期：1977-02-01 00:00:00
abstract：:Mechanisms that preserve endothelial cell (EC) integrity remain elusive, but are critical for new strategies directed against endocrine disorders such as diabetes mellitus (DM). Here we demonstrate in primary cerebral ECs with a clinically relevant model of elevated d-glucose that Akt1 and the post-translational modif...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.02.037
更新日期：2010-06-10 00:00:00
abstract：:For eutherian mammals a continuum of maternal support insures that development of progeny follows an optimal program. Beginning in utero, such support extends into the early neonatal period when bioactive factors are communicated from mother to offspring in colostrum/milk. Defined as lactocrine signaling, communicatio...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2011.10.008
更新日期：2012-05-06 00:00:00
abstract：:This paper reviews work on progesterone and the progesterone receptor (PR) in the mouse mammary gland that has been used extensively as an experimental model. Studies have led to the concept that progesterone controls proliferation and morphogenesis of the luminal epithelium in a tightly orchestrated manner at distinc...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2011.10.030
更新日期：2012-06-24 00:00:00
abstract：:A rapid and sensitive assay of iodothyronine-5'-monodeiodinase (5'-D) was developed using Sephadex column chromatography for separation of substrate 125I-rT3 from the product free 125I-. The distribution of 5'-D activity on rat kidney cortex cell membranes was examined in isopycnic zonal centrifugation experiments usi...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(88)90013-5
更新日期：1988-03-01 00:00:00
abstract：:The present experiment used cultured mouse cumulus cell-enclosed oocytes (CEOs) and denuded oocytes (DOs) to study the function of nitric oxide (NO) in mouse oocyte meiotic maturation. Either positive or negative actions of NO on meiotic maturation has been observed when CEOs or DOs were cultured for 24 h in a medium ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(03)00213-2
更新日期：2003-09-30 00:00:00
abstract：:Protein tyrosine kinases (PTKs) are key enzymes implicated in signal transduction pathways regulated by growth factors (GFs). We have previously shown by immunohistochemistry that the level of phosphotyrosine (pY) proteins is increased in prostatic basal epithelial cells following estrogen treatment in castrated dogs....
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(96)03966-4
更新日期：1997-01-03 00:00:00
abstract：:Mammalian female fertility is critically dependent on timely coordinated intercellular communication between follicle cells. Gap junctions are small, membrane-bound, aqueous channels that couple adjacent cells ionically and gap junction proteins, connexin-37 (Cx37) and connexin-43 (Cx43) both participate in sustaining...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2004.10.014
更新日期：2005-04-29 00:00:00
abstract：:Allatostatins with a typical YXFGL-amide C-terminus constitute a neuropeptide family, which was discovered because of its inhibitory action on insect juvenile hormone synthesis. In the search for possible new functions for allatostatins we focused our attention on the fat body. Our previous studies on the cockroach Bl...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(96)03864-6
更新日期：1996-08-09 00:00:00
