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 to T3. The rT3 inhibition was of the partial competitive type. rT3 accumulation could not be detected at pH 7.4 or lower. At higher pH values rT3 could be measured in the incubates; however, the concentration was much lower than that of T3. The pH optimum was 9.0. Added rT3 disappeared rapidly at pH 7.4. The results suggest a high affinity of the 5'-deiodinase in human thyroid tissue for rT3, as has previously been described in the rat, but in contrast to our previous findings in dog thyroid and liver. Using tissue from 3 highly differentiated thyroid medullary carcinomas, deiodination could not be demonstrated, while it was normal using paraneoplastic thyroid tissue from the same patients. This suggests that the deiodinases studied originated from the follicular and not the C-cells of the thyroid.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Boye N,Laurberg Pdoi
10.1016/0303-7207(84)90099-6subject
Has Abstractpub_date
1984-10-01 00:00:00pages
295-9issue
3eissn
0303-7207issn
1872-8057pii
0303-7207(84)90099-6journal_volume
37pub_type
杂志文章abstract：:Temperature-dependent sex determination (TSD) is a prime example of phenotypic plasticity in that gonadal sex is determined by the temperature of the incubating egg. In the red-eared slider turtle (Trachemys scripta), the effect of temperature can be overridden by exogenous ligands, i.e., sex steroid hormones and ster...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2011.10.012
更新日期：2012-05-06 00:00:00
abstract：:17 beta-Hydroxysteroid dehydrogenase type 1 (17-HSD type 1) is a steroidogenic enzyme catalyzing reversible interconversion of estradiol and estrone. 17-HSD type 1 is actively expressed in human placenta. We characterized 17-HSD type 1 expression and its regulation by basic fibroblast growth factor (bFGF) in JAR, JEG-...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(94)90045-0
更新日期：1994-08-01 00:00:00
abstract：:Direct roles of follicle-stimulating hormone (FSH)-suppressing protein (FSP) and activin in regulation of ovarian granulosa cell differentiation have been reported recently. The present study further investigated the effects of these peptides on steroidogenesis and inhibin production as well as cAMP generation in cult...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(91)90100-7
更新日期：1991-08-01 00:00:00
abstract：:Differences in sialic acid content of the hormone have been considered the main determinant of FSH polymorphism. The aim of the present study was to investigate the effect of variations in the oligosaccharide structure of the intrapituitary human FSH (hFSH) glycosylation variants on their intrinsic biological activity...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(00)00453-6
更新日期：2001-03-28 00:00:00
abstract：:The stimulatory effects on Leydig cell testosterone secretion of a polypeptide(s) factor present in testicular interstitial fluid (IF) were compared with those of hCG and an LHRH agonist (LHRH-A). The actions of IF and LHRH-A were similar in showing (1) a delayed onset of action, (2) enhancement of testosterone produc...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(85)90029-2
更新日期：1985-07-01 00:00:00
abstract：:Pioglitazone belongs to the class of drugs called thiazolidinediones (TZDs), which are widely used as insulin sensitizers in the treatment of diabetes. A major side effect of TZDs is fluid retention. The steroid hormone aldosterone also promotes sodium and fluid retention; however, the effect of pioglitazone on aldost...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2014.07.007
更新日期：2014-08-25 00:00:00
abstract：:The diterpene forskolin was found to activate the adenylate cyclase system in intact tissue and membrane preparations of the immature rat ovary. The cyclic AMP (cAMP) response reached a maximal level after 5 min and no decline was observed even after 4 h of incubation. Forskolin stimulated production of both progester...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/0303-7207(83)90057-6
更新日期：1983-11-01 00:00:00
abstract：:Foxp3+ regulatory T cells (Tregs) in lymphocytes facilitate the thyroid tumor growth and invasion. Very limited information is available on Foxp3 expression in thyroid cancer cells and its function is totally unknown. This study demonstrated that Foxp3 expression was increased in thyroid cancer cells. Inhibition of Fo...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2014.10.006
更新日期：2015-01-05 00:00:00
abstract：:The beneficial effects of empagliflozin (EMPA) on cardiac functions during ischemia and reperfusion were characterized. The contractile functions of isolated cardiomyocytes from adult C57BL/6J mice were determined with IonOptix SoftEdgeMyoCam system. The mitochondrial superoxide production was measured by MitoSOX fluo...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2019.110642
更新日期：2020-02-05 00:00:00
abstract：:Adrenocortical cancer is a rare malignancy for which current pharmacological therapies are still insufficient. We tested the effect of a novel PI3 kinase - mammalian target of rapamycin dual inhibitor (NVP-BEZ235) on proliferation of the H295R adrenocortical cancer cell line in vitro and grown as xenografts in immunod...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2012.08.014
更新日期：2012-11-25 00:00:00
abstract：:Many genes that are required for fertility have been identified in model organisms (). Mutations in these genes cause infertility due to defects in development of the germ cell lineage, but the organism is otherwise healthy. Although human reproduction is undoubtedly as complex as that of other organisms, very few fer...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(01)00646-3
更新日期：2001-11-26 00:00:00
abstract：:While vitamin D supplementation is common, the anabolic mechanisms that improve bone status are poorly understood. Under standard mineralising conditions including media ionised calcium of 1.1 mM, 1,25-dihydroxyvitamin D3 (1,25D) enhanced differentiation and mineral deposition by the mature osteoblast/pre-osteocyte ce...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2015.06.005
更新日期：2015-09-05 00:00:00
abstract：:Ghrelin is the only known circulating hormone that acts on peripheral and central targets to increase food intake and promote adiposity. The present review focuses on the possible clinical relevance of ghrelin in the regulation of human feeding behavior in individuals with obesity and other eating disorders such as Pr...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2011.03.001
更新日期：2011-06-20 00:00:00
abstract：:We used murine Ba/F3 cells transfected with human growth hormone receptor (hGHR) cDNA to investigate the regulatory mechanisms of human growth hormone-binding protein (hGH-BP) release. The extracellular domain of hGHRs were cleaved and released as hGH-BPs (a soluble form of hGHR). The hGH-BP release was enhanced by ph...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(01)00583-4
更新日期：2001-09-01 00:00:00
abstract：:Accumulating evidence suggests that the human follitropin receptor is unusually sensitive to mutation. Previous results (Mol. Cell. Endo. 166 (2000) 101) determined that scanning mutations in a.a. 12-14 and 22-30 neither bound follitropin nor were present on the cell surface, suggesting that these regions are involved...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(02)00424-0
更新日期：2003-03-28 00:00:00
abstract：:A critical regulatory component of the hypothalamus/pituitary/adrenal axis (HPA) in mammals, reptiles and birds, and in the hypothalamus/pituitary/interrenal (HPI) axis of amphibians and teleosts (modern bony fishes) is the strict ligand selectivity of the melanocortin-2 receptor (MC2R). Tetrapod and teleost MC2R orth...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2014.12.022
更新日期：2015-06-15 00:00:00
abstract：:Cultured human luteinized granulosa cells (GC) are a unique model to study regulation of the human corpus luteum, e.g. by local factors, including acetylcholine (ACh). GC express functional ACh-receptors of the M1-type (M1R). Priming with the cholinergic agonist carbachol for 24 h, followed by a 24 h stimulation with ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(00)00420-2
更新日期：2001-01-22 00:00:00
abstract：:In this paper, we identify three different MRAPs in zebrafish, zfMRAP1, zfMRAP2a and zfMRAP2b, and demonstrate that zfMC2R is not functional in the absence of MRAP expression. ZfMRAP1 expression was restricted to adipose tissue and the anterior kidney whereas MRAP2a and MRAP2b were expressed in all the tissues tested....
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.01.032
更新日期：2010-05-14 00:00:00
abstract：:Alternative mRNA splicing diversifies the products encoded by the NCoR and SMRT corepressor loci. There is a programmed alteration in NCoR mRNA splicing during adipocyte differentiation from an NCoRω isoform, which contains three nuclear receptor interaction domains, to an NCoRδ isoform that contains two nuclear recep...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2015.06.036
更新日期：2015-09-15 00:00:00
abstract：:Conventional in vitro autoradiographical techniques have been used to screen a number of ovine peripheral tissues for the presence of specific 2-[125I]iodomelatonin binding sites. Intense specific labelling (defined as that displaced by 1 microM melatonin) was observed in the adrenal cortex, and less intense specific ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(94)90055-8
更新日期：1994-08-01 00:00:00
abstract：:Severe inflammation in the islets is observed in obese patients with type 2 diabetes. Inflammation in the islets is caused by obesity-induced serum free fatty acids. Asprosin is a fasting-induced adipokine, which contributes to hepatic glucose production. However, the effects of asprosin on inflammation and cellular d...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2019.03.001
更新日期：2019-04-15 00:00:00
abstract：:Polymerase chain reaction (PCR) amplification of nt 4502 to nt 5184 of the thyroglobulin (Tg) mRNA from several patients, with or without elevated serum thyrotropin (TSH), showed a predominant fragment of the expected size (683 bp) and a minor fragment of 512 bp. The sequence of this minor fragment revealed that 171 b...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(92)90087-m
更新日期：1992-03-01 00:00:00
abstract：:Catecholamines are known to have an inhibitory effect on oviductal smooth musculature by changing the adrenergic receptors activity. In order to further investigate the role of epinephrine and/or norepinephrine in oviduct, the distribution of beta-adrenergic receptors has been studied in the rat oviduct, using in vitr...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(88)90123-2
更新日期：1988-11-01 00:00:00
abstract：:Factors that regulate the tissue specific and developmental expression of the GLUT4 gene, whose transcribed protein is primarily responsible for mediating insulin stimulated glucose transport, are poorly defined. In this study we examined the effects of retinoic acid, a circulating factor that can promote cellular dif...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(95)03473-k
更新日期：1995-02-27 00:00:00
abstract：:The acquisition of steroidogenic competence by prothoracic glands of last instar Manduca sexta larvae is regulated by juvenile hormone (JH). Topical treatment of pre-commitment larvae with JH I or (7S)-hydroprene (a JH analog) delays development by increasing the time to pupal commitment and wandering. Prothoracic gla...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(88)90081-0
更新日期：1988-06-01 00:00:00
abstract：:Adiponectin, an adipose-secreted adipocytokine, exhibits various metabolic functions but has no known effect on bone development through the growth plate and specifically, in chondrocytes. Using the mouse ATDC5 cell line, a widely used in vitro model of chondrogenesis, we demonstrated the expression of adiponectin and...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2010.03.025
更新日期：2010-07-29 00:00:00
abstract：:The functions of anterior pituitary cells are controlled by two major groups of hypothalamic and intrapituitary ligands: one exclusively acts on G protein-coupled receptors and the other activates both G protein-coupled receptors and ligand-gated receptor channels. The second group of ligands operates as neurotransmit...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2017.07.003
更新日期：2018-03-05 00:00:00
abstract：:Previously, we showed that the bio-peptide angiotensin (Ang) II induces interleukin-6 (IL-6) in cultured astrocytes; however, the mechanism(s) involved in this effect were unknown. In the current study, we determined in brainstem and cerebellum astrocytes from the spontaneously hypertensive rat (SHR), the effect of An...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2016.08.013
更新日期：2016-12-05 00:00:00
abstract：:Aromatase, estrone sulfatase, and 17β-hydroxysteroid dehydrogenase type 1 are involved in the key steps of 17β-estradiol biosynthesis. Structure-function studies of aromatase, estrone sulfatase and 17β-hydroxysteroid dehydrogenase type 1 are important to evaluate the molecular basis of the interaction between these en...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2010.09.012
更新日期：2011-07-04 00:00:00
abstract：:TRESK (TWIK-related spinal cord K(+) channel, KCNK18) belongs to the two-pore domain (K2P) background (leak) potassium channel family. Unlike other K2P channels, TRESK is activated by the calcium signal in heterologous expression systems. The activation is mediated by the calcium/calmodulin-dependent protein phosphata...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2011.11.009
更新日期：2012-04-28 00:00:00
