Abstract:
:Orexin-A and -B are known to stimulate food intake in mammals. However, the critical roles of orexins in birds are not fully understood, since orexins have no stimulatory effect on food intake in the chicken. To understand the physiological role(s) of orexins in birds, we have cloned chicken orexin receptor (cOXR) cDNA by RT-PCR, and analysed the tIssue distribution of OXR mRNA in the chicken. The cOXR cDNA is 1869 bp long and encodes 501 amino acids. The cloned cDNA for cOXR corresponds to the type 2 OXR in mammals, and shows approximately 80% similarity to those of mammals at the amino acid level. Expression analysis by RNase protection assay revealed OXR mRNA was distributed widely in brain regions, and expression in the cerebrum, hypothalamus and optic tectum were abundant. In peripheral tIssues, OXR mRNA was expressed in the pituitary gland, adrenal gland and testis, but no mRNA expression was observed in other tIssues examined. Furthermore, we found that the amount of cOXR mRNA was different between testis and ovary, while prepro-orexin mRNA is equally expressed in the gonads of both sexes in the chicken. These data indicate that the orexins have neuroendocrine actions in chickens, which are mediated through hypothalamic receptors as has been observed in mammals. In addition, orexin may have specific role(s) in the regulation of gonadal function in which sex-dependent mechanisms could be involved.
journal_name
J Mol Endocrinoljournal_title
Journal of molecular endocrinologyauthors
Ohkubo T,Tsukada A,Shamoto Kdoi
10.1677/jme.0.0310499subject
Has Abstractpub_date
2003-12-01 00:00:00pages
499-508issue
3eissn
0952-5041issn
1479-6813journal_volume
31pub_type
杂志文章abstract::A transgenic mouse line (EGF/Tag) has been established in which expression of SV40 T-antigen is directed by a 5.5 kb fragment of the 5'-flanking region of the mouse epidermal growth factor (EGF) gene. Of the two principal sites of EGF expression in mice, submaxillary gland and kidney, T-antigen mRNA and protein were d...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0120313
更新日期:1994-06-01 00:00:00
abstract::A new full-length cDNA (ZFOR4) that encodes an opioid receptor has been isolated from the teleost zebrafish. The encoded polypeptide is 375 amino acids long and shows high sequence similarity to other delta-opioid receptors, including ZFOR1, the other delta-opioid receptor from zebrafish previously characterized by us...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.1.02136
更新日期:2006-12-01 00:00:00
abstract::Porcine LH receptor ectodomain was overexpressed in insect cells and lepidopteran larvae using the recombinant baculovirus expression system. A low multiplicity of infection yielded the largest active production, of approximately 10(7) receptors/cell or 3 micrograms active receptor/mg total protein in infected cells. ...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0140051
更新日期:1995-02-01 00:00:00
abstract::In order to better quantify the molecular mechanisms regulating final oocyte maturation and spawning, complete coding sequences with partially or fully untranslated regions for the steroidogenic enzymes, cytochrome P450 aromatase and 20 beta-hydroxysteroid dehydrogenase, were cloned from ovaries of Atlantic cod (Gadus...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/JME-07-0070
更新日期:2007-10-01 00:00:00
abstract::Reproductive function in mammals is regulated by the pituitary gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH). LH and FSH are secreted by the gonadotrope cell and act on the gonad in a sequential and synergistic manner to initiate sexual maturation and maintain cyclic reproductive functi...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1677/jme.1.01600
更新日期:2004-12-01 00:00:00
abstract::The neurohypophysial nonapeptides vasotocin (VT) and mesotocin (MT) are the amphibian counterparts of arginine vasopressin (AVP) and oxytocin (OT). We have here reported the cloning and functional characterization of the receptors for vasotocin (VTR) and mesotocin (MTR) in two species of frog, Rana catesbeiana and Ran...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0330293
更新日期:2004-08-01 00:00:00
abstract::Ovarian cortical tissue cryopreservation is a relatively novel approach to preserving fertility in women diagnosed with cancer. However, the effects of freezing-thawing are not fully understood, mainly due to the lack of suitable methods to assess tissue's survival after thawing. Disparities in steroid production have...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-18-0237
更新日期:2019-03-01 00:00:00
abstract::Leptin (Lep) is an anorexigenic hormone and regulates appetite-related neuropeptides in mammals. A number of neuropeptides have also been linked to appetite regulation in teleost fish, but Lep signaling activation and effects on appetite-regulating neurons are poorly elucidated in early vertebrates. This study uses ce...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-15-0279
更新日期:2016-04-01 00:00:00
abstract::Activation of the hypothalamo-pituitary-adrenal (HPA) axis during stress is associated with increased expression of genes that code for regulatory hormones such as corticotrophin-releasing factor (CRF) and ACTH. The identity of the transcription factors that mediate these changes in gene expression is not known. In th...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0190291
更新日期:1997-12-01 00:00:00
abstract::Two forms of prolactin (tiPRLI and tiPRLII), with only 69% sequence identity, have been previously described in the cichlid fish tilapia (Oreochromis species). In the present study we have attempted to investigate the biological activity of these two prolactin forms during adaptation to a hyperosmotic environment. For...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0120013
更新日期:1994-02-01 00:00:00
abstract::Luteotropic glycoprotein hormones (LGH) include luteinizing hormone (LH) and chorionic gonadotropin (CG). The order Primates is the only phylogenetic clad known to exhibit more than one LGHbeta subunit gene per haploid genome. In the present study, we report the discovery of a second case of LGHbeta gene replication, ...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0210019
更新日期:1998-08-01 00:00:00
abstract::Osteoporosis is a systemic skeletal disease characterized by low bone mass and microarchitectural deterioration of bone tissue. At a given age, bone mass results from the amount of bone acquired during growth, i.e. the peak bone mass (Bonjour et al., 1991, Theintz et al. 1992) minus the age-related bone loss which par...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1677/jme.0.0260079
更新日期:2001-04-01 00:00:00
abstract::The nociceptin receptor (NOP) and its endogenous ligand, nociceptin/orphanin FQ (OFQ), are involved in a wide range of biological functions, such as pain, anxiety, learning, and memory. The zebrafish has been proposed as a candidate to study the in vivo effects of several drugs of abuse and to discover new pharmacolog...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-10-0130
更新日期:2011-03-03 00:00:00
abstract::The interaction between human papillomaviruses (HPV) and the apolipoprotein-B mRNA-editing catalytic polypeptide-like (APOBEC)3 (A3) genes has garnered increasing attention in recent years, with considerable efforts focused on understanding their apparent roles in both viral editing and in HPV-driven carcinogenesis. H...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1530/JME-19-0011
更新日期:2019-05-01 00:00:00
abstract::This study aimed to determine whether and how the glucagon-like peptide 1 receptor (GLP-1R) agonist liraglutide affects the chemoresistance and chemosensitivity of pancreatic cancer cells to gemcitabine in vitro and in vivo. The GLP-1R and protein kinase A (PKA) levels were compared between the human pancreatic cancer...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-19-0186
更新日期:2020-02-01 00:00:00
abstract::Expression of the rat alpha 2u-globulin gene family is regulated in the adult male liver by a number of hormones, including growth hormone, thyroid hormone and several steroids. Upon injection into ovariectomized females, estrogens first induce alpha 2u-globulin expression and then suppress this gene after several day...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0200141
更新日期:1998-02-01 00:00:00
abstract::Fatty acids are essential nutrients that contribute to several intracellular functions. Fatty acid synthesis and oxidation are known to be regulated by sterol regulatory element-binding proteins (SREBPs), which play a pivotal role in the regulation of cellular triglyceride synthesis and cholesterol biogenesis. Recent ...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1530/JME-17-0289
更新日期:2018-10-01 00:00:00
abstract::Metallothioneins (MTs) are cytoprotective proteins acting as scavengers of toxic metal ions or reactive oxygen species. MTs are upregulated in follicular thyroid carcinoma and are regarded as a marker of thyroid stress in Graves' disease. However, the mechanism of MT regulation in thyrocytes is still elusive. In other...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-12-0200
更新日期:2013-06-04 00:00:00
abstract::We have studied the action of peripheral blood lymphocytes (PBLs) and intrathyroidal lymphocytes (ITLs) on the biochemical and hormonal metabolism of autologous thyrocytes cultured in follicles in a collagen gel. The production of tumour necrosis factor alpha (TNF-alpha) in culture was also measured. Thyroid tissues a...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0180137
更新日期:1997-04-01 00:00:00
abstract::The development and growth of prostate cancer is dependent on androgens; thus, the identification of androgen-regulated genes in prostate cancer cells is vital for defining the mechanisms of prostate cancer development and progression and developing new markers and targets for prostate cancer treatment. Glycine N-meth...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-13-0169
更新日期:2013-11-07 00:00:00
abstract::Prolactin (PRL)-releasing peptide (PrRP) is a strong candidate stimulator of pituitary PRL transcription and secretion in teleosts. However, the role in control of extrapituitary PRL expression is unclear even in mammals. To study the possible presence of PrRP-PRL axes not only in the brain-pituitary but also in perip...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.1.01768
更新日期:2005-06-01 00:00:00
abstract::Follicle-stimulating hormone (FSH) plays fundamental roles in male and female fertility. FSH is a heterodimeric glycoprotein expressed by gonadotrophs in the anterior pituitary. The hormone-specific FSHβ-subunit is non-covalently associated with the common α-subunit that is also present in the luteinizing hormone (LH)...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1530/JME-17-0308
更新日期:2018-04-01 00:00:00
abstract::Breast cancer is a heterogeneous disease, and the complexity of breast carcinogenesis is associated with epigenetic modification. There are several major classes of epigenetic enzymes that regulate chromatin activity. This review will focus on the nine mammalian protein arginine methyltransferases (PRMTs) and the dysr...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1530/JME-18-0224
更新日期:2019-04-01 00:00:00
abstract::It has been demonstrated that transforming growth factor-β (TGFβ) and other members of TGFβ superfamily play an important role in thyroid proliferative diseases. The deficiencies of SMAD4 are responsible to accelerate the malignant progression of neoplastic lesions in several types of tumors. Therefore, the objective ...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/JME-10-0044
更新日期:2010-10-01 00:00:00
abstract::Octopamine (OA) is an important neuroactive substance that modulates several physiological functions and behaviors of various invertebrate species. This biogenic monoamine, structurally related to noradrenaline, acts as a neurotransmitter, a neuromodulator, or a neurohormone in insects. The tyramine β-hydroxylase (TBH...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-12-0202
更新日期:2013-01-11 00:00:00
abstract::FSH acts through the Sertoli cell to ensure normal testicular development and function. To identify transcriptional mechanisms through which FSH acts in the testis, we have treated gonadotrophin-deficient hypogonadal (hpg) mice with recombinant FSH and measured changes in testicular transcript levels using microarrays...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/JME-08-0107
更新日期:2009-04-01 00:00:00
abstract::To capture immediate cellular changes during diet-induced expansion of adipocyte cell volume and number, we characterized mature adipocytes during a short-term high-fat diet (HFD) intervention. Male C57BL6/J mice were fed chow diet, and then switched to HFD for 2, 4, 6 or 14 days. Systemic glucose clearance was assess...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1530/JME-17-0195
更新日期:2018-04-01 00:00:00
abstract::Cytochrome P450 21-hydroxylase (P450c21) is a key enzyme for corticosteroidogenesis. To understand the regulatory mechanisms of cortisol production in fish, we have cloned a cDNA encoding P450c21, for the first time in non-mammalian vertebrates, from the head kidney of the eel (Anguilla japonica). The overall similari...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/jme.0.0310327
更新日期:2003-10-01 00:00:00
abstract::Evidence indicates that central regulation of food intake is well conserved along the vertebrate lineage, at least between teleost fish and mammals. However, several differences arise in the comparison between both groups. In this review, we describe similarities and differences between teleost fish and mammals on an ...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章,评审
doi:10.1530/JME-17-0320
更新日期:2018-05-01 00:00:00
abstract::Murine double minute clone 2 (MDM2) is a multifunctional protein, which modulates nuclear receptor-mediated transactivation. In this study, we show that MDM2 significantly enhanced estrogen receptor α (ERα) and ERα/specificity protein-mediated transactivation in MCF-7 and ZR-75 breast cancer cells. This was demonstrat...
journal_title:Journal of molecular endocrinology
pub_type: 杂志文章
doi:10.1677/JME-10-0110
更新日期:2011-02-15 00:00:00