Abstract：
:The aims of the study were to characterize leptin and it is receptor (LEPR) proteins immunoexpression in ovine ovaries and to evaluate the effects of leptin on development of secondary follicles cultured in vitro. The ovaries were collected and fixed for immunohistochemical analysis. Additional pairs of ovaries were collected and secondary follicles were isolated and cultured, for 18 days, in α-MEM+ alone or supplemented with 10 or 25 ng/mL of leptin. The antrum formation and fully grown oocytes rates were higher in 25 ng/mL leptin than all treatments. GSH levels and mitochondrial activity were higher in 10 or 25 ng/mL leptin than α-MEM+. 25 ng/mL leptin showed a higher percentage of MII than the α-MEM+. In conclusion, leptin and its receptor are expressed in ovine ovaries and 25 ng/mL leptin promoted higher in vitro maturation rates by improving follicular development, GSH levels and mitochondrial activity of ovine oocytes compared to control medium.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Macedo TJS,Santos JMS,Bezerra MÉS,Menezes VG,Gouveia BB,Barbosa LMR,Lins TLBG,Monte APO,Barberino RS,Batista AM,Barros VRP,Wischral A,Queiroz MAA,Araújo GGL,Matos MHTdoi
10.1016/j.mce.2019.110506subject
Has Abstractpub_date
2019-09-15 00:00:00pages
110506eissn
0303-7207issn
1872-8057pii
S0303-7207(19)30208-4journal_volume
495pub_type
杂志文章abstract：:The effects of 3.0 mM Mn2+ on parathyroid hormone (PTH) release, 45Ca fluxes and the cytoplasmic Ca2+ concentration (Ca2+i) were studied in vitro with use of parathyroid glands from rats and cattle. Mn2+ inhibited PTH release by about 70 and 60% at Ca2+ concentrations of less than 10 nM or 0.5 mM, respectively, and li...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(88)90197-9
更新日期：1988-09-01 00:00:00
abstract：:Lipotoxic injury of pancreatic β cells is an important pathological feature in type 2 diabetes mellitus (T2DM). Stimulator of interferon genes (STING) can recognize its own DNA leaked into the cytoplasm from damaged mitochondria or nuclei of the host cell, thus activating its downstream factor interferon regulatory fa...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2020.110890
更新日期：2020-12-01 00:00:00
abstract：:The activity of the hypothalamic-pituitary-adrenal (HPA) axis is characterized by an ultradian (pulsatile) pattern of hormone secretion. Pulsatility of glucocorticoids has been found critical for optimal transcriptional, neuroendocrine and behavioral responses. This review will focus on the mechanisms underlying the o...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2015.02.005
更新日期：2015-06-15 00:00:00
abstract：:Individual variation in sensitivity to glucocorticoids (GCs) poses a dilemma to the clinician. Currently available assays to determine individual sensitivity to GCs either seem imprecise, or they are based on mitogen-activated lymphocytes, although mitogens themselves may affect cellular GC sensitivity. To avoid these...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2003.12.011
更新日期：2004-04-15 00:00:00
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：:The steroidogenic acute regulatory protein (StAR) mediates the transfer of cholesterol from the outer to the inner mitochondrial membrane, the regulated step in steroidogenesis. A most interesting facet of this protein is the manner in which its expression is acutely regulated. In this regard, a number of studies have...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(01)00423-3
更新日期：2001-05-25 00:00:00
abstract：:To determine if the hormonal effects on insulin-like growth factor binding protein (IGFBP) production differed between granulosa and thecal cells, both cell types were collected and cultured in serum-free medium with various hormone treatments, arranged in three experiments. Following treatment, cells were enumerated ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(01)00541-x
更新日期：2001-08-20 00:00:00
abstract：:A cDNA for a prostaglandin E(2) (PGE(2)) receptor subtype 4, EP4b (Ptger4b), was cloned from the medaka ovary. The effect of PGE(2) was examined using COS-7 cells expressing the recombinant Ptger4b protein. An increase in intracellular cAMP levels was observed when the cells were incubated with PGE(2), but the increas...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2012.05.013
更新日期：2012-10-15 00:00:00
abstract：:Activation of mineralocorticoid receptor (MR) is evoked by aldosterone, and it induces hypertension and cardiovascular disease when it's concomitant with excessive salt loading. We have proposed the notion of "MR-associated hypertension", in which add-on therapy of MR blockers is effective even though serum aldosteron...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2018.01.007
更新日期：2018-09-15 00:00:00
abstract：:The interaction between thyroid microsomal autoantibodies and thyroid microsomal antigen/thyroid peroxidase (TPO) has been studied using both intact antigen preparations and their water-soluble trypsin fragments. In an analysis of sera from 30 patients with Graves' or Hashimoto's diseases, microsomal antibodies showed...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(87)90187-0
更新日期：1987-09-01 00:00:00
abstract：:Activating mutations in the follicle-stimulating hormone (FSH) receptor (FSHR) gene are rarely detected due to the absence of a clearly defined phenotype, particularly in men. We here report the biochemical features of a novel mutation in the first extracellular loop of the FSHR. The mutation (N431I) was detected in a...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2012.08.011
更新日期：2012-11-25 00:00:00
abstract：:Low-grade inflammation links obesity, insulin resistance, and cardiovascular diseases. We investigated the effects of laparoscopic sleeve gastrectomy (LSG) on expression profile of genes involved in inflammatory pathways in subcutaneous adipose tissue (SCAT) and peripheral monocytes (PM). At baseline, obese group had ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2013.11.013
更新日期：2014-03-05 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：: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：:An accurate understanding of the molecular events governing pancreas development can have an impact on clinical medicine related to diabetes, obesity and pancreatic cancer, diseases with a high impact in public health. Until 1996, the main animal models in which pancreas formation and differentiation could be studied ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2009.04.018
更新日期：2009-11-27 00:00:00
abstract：:The presence of insulin resistance is increasingly recognized as an important contributor to early stage kidney disease independent of the contribution of diabetes. Important in this relationship is the strong correlation between hyperinsulinemia and low levels of albuminuria (e.g. microalbuminuria). Recent work highl...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2013.02.005
更新日期：2013-09-25 00:00:00
abstract：:We have localized four transcription initiation sites in the human insulin-like growth factor-I (IGF-I) gene. Two transcription start sites were identified which result in a longer and shorter version of the leader derived from the known exon 1 of the IGF-I gene. Transcription starting at the upstream transcription in...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(91)90192-u
更新日期：1991-06-01 00:00:00
abstract：:Increasing evidence in recent years has demonstrated the regulatory effects of arachidonic acid and its metabolites on steroid hormone production in various steroidogenic tissues. In trophic hormone-stimulated steroidogenesis, arachidonic acid is rapidly released from phospholipids. This release is dependent upon horm...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0303-7207(99)00130-6
更新日期：1999-12-20 00:00:00
abstract：:The mechanism by which growth hormone-binding protein (GH-BP) is generated in humans remains unclear. To address this question, we analysed human GH-receptor/GH-BP gene expression in a human hepatoma cell line (HuH7). Northern hybridisation showed that HuH7 cells contain a single mRNA species hybridising with a probe ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(95)03567-q
更新日期：1995-06-01 00:00:00
abstract：:Hyperthyroidism was induced in rats and somatic indices and metabolic parameters were analyzed in testis. In addition, the morphological analysis evidenced testes maturation and intense protein synthesis and processing, supporting the enhancement in vimentin synthesis in hyperthyroid testis. Furthermore, vimentin phos...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2007.01.005
更新日期：2007-03-15 00:00:00
abstract：:Stimulation of insulin secretion is accompanied by changes in the phosphorylation state of several islet polypeptides. Protein (de)phosphorylation is mediated by the action of protein kinases and phosphoprotein phosphatases. In this study we have investigated expression of phospho-serine/threonine phosphatases (PPs) i...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(95)03747-0
更新日期：1996-03-25 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：:The rapid effects of steroids on spermatozoa have been demonstrated for the first time two decades ago. Progesterone (P), which is present throughout the female genital tract with peaks of levels in the cumulus matrix surrounding the oocyte, stimulates several sperm functions, including hyperactivation and acrosome re...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2009.02.006
更新日期：2009-09-24 00:00:00
abstract：:Secreted, plasma membrane, and resident proteins of the secretory pathway are synthesized in the endoplasmic reticulum (ER) where they undergo post-translational modifications, oxidative folding, and subunit assembly in tightly monitored processes. An ER quality control (ERQC) system oversees protein maturation and en...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.mce.2019.110630
更新日期：2020-01-15 00:00:00
abstract：:C-fos promoter activity was examined in FRTL5 rat thyroid cells transiently transfected with a chimeric gene containing the c-fos promoter region linked upstream of the receptor gene chloroamphenicol acetyl transferase (CAT). Thyroid-stimulating hormone (TSH) stimulation of transfected cells increased CAT activity 2- ...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/0303-7207(88)90165-7
更新日期：1988-08-01 00:00:00
abstract：:17beta-hydroxysteroid dehydrogenase type 7 (17beta-HSD7) is a novel estrogenic hydroxysteroid dehydrogenase from mammals. We modeled the three-dimensional structure of human 17beta-HSD7, analyzed the phylogeny of 17beta-HSD7 homologues and determined its expression pattern by in silico Northern blotting. Predominant e...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/s0303-7207(00)00416-0
更新日期：2001-01-22 00:00:00
abstract：:Endocrine-disrupting chemicals (EDCs), such as perfluorooctanoate, perfluorooctane sulfonate, 2,2-dichlorodiphenyldichloroethylene, hexachlorobenzene, and polychlorinated biphenyl 153 are persistent pollutants that are found in human follicular fluid (FF). These compounds may affect endocrine function, disrupt steroid...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2019.110698
更新日期：2020-03-01 00:00:00
abstract：:Diabetes-induced neutrophil NETosis impairs wound healing through neutrophil extracellular traps (NETs). Reactive oxygen species (ROS)-triggered activation of mitogen-activated protein kinase (MAPK) ERK1/2 and p38 is involved in NETosis. Hydrogen sulfide (H2S), an endogenous signaling molecule, accelerates diabetic wo...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2018.10.013
更新日期：2019-01-15 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：:Oxytocin (OT) plays an important role in the onset of human labour by stimulating uterine contractions and promoting prostaglandin/inflammatory cytokine synthesis in amnion via oxytocin receptor (OTR) coupling. The OTR-antagonist, Atosiban, is widely used as a tocolytic for the management of acute preterm labour. We f...
journal_title：Molecular and cellular endocrinology
pub_type： 杂志文章
doi：10.1016/j.mce.2015.11.012
更新日期：2016-01-15 00:00:00
