abstract：:This article is focused on the effect of specific phase relation of serotonergic and dopaminergic oscillations on the gonadal responses of different avian species. These species include (i) summer breeding birds - Red headed bunting (exhibiting post-reproductive absolute photorefractoriness) and Indian Weaver bird (wh...

journal_title：General and comparative endocrinology

authors： Chaturvedi CM,Yadav S

更新日期：2013-09-01 00:00:00

abstract：:Several neuropeptides possessing the RFamide motif at their C-termini (designated RFamide peptides) have been characterized in the hypothalamus of a variety of vertebrates. Since the discovery of the 26-amino acid RFamide peptide (termed 26RFa) from the frog brain, 26RFa has been shown to exert orexigenic activity in ...

journal_title：General and comparative endocrinology

authors： Ukena K,Tachibana T,Tobari Y,Leprince J,Vaudry H,Tsutsui K

更新日期：2013-09-01 00:00:00

abstract：:The presence of a robust estrogen (E2) response system throughout heart and blood vessel tissues of vertebrates, including humans, has led to the speculation that this ubiquitous hormone may play a prominent role in the health and maintenance of the adult cardiovascular system (CVS). We previously established an embry...

journal_title：General and comparative endocrinology

authors： Allgood OE Jr,Hamad A,Fox J,Defrank A,Gilley R,Dawson F,Sykes B,Underwood TJ,Naylor RC,Briggs AA,Lassiter CS,Bell WE,Turner JE

更新日期：2013-08-01 00:00:00

abstract：:The present study was undertaken to characterize different vitellogenins in Channa punctatus. Protein purification by gel chromatography followed by fast protein liquid chromatography (FPLC) revealed existence of two different Vg forms. Liquid chromatography tandem mass spectrophotometry (LC-MS/MS) suggested the exist...

journal_title：General and comparative endocrinology

authors： Rawat VS,Pipil S,Sharma L,Sehgal N

更新日期：2013-08-01 00:00:00

abstract：:Steroid hormones play an important role in modulating behavioral responses to various social stimuli. It has been suggested that variation in the hormonal regulation of behavior across species is associated with social organization and/or mating system. In order to further elucidate the interplay of hormones and behav...

journal_title：General and comparative endocrinology

authors： Sessa AK,Harris RM,Hofmann HA

更新日期：2013-08-01 00:00:00

abstract：:Pheromones are known to trigger either short-term behavioral responses, usually referred to as "releaser effects", or more long-term physiological changes, known as "primer effects", which especially affect reproductive function at the level of the gonadotrope axis. The precise mechanisms through which pheromones inte...

journal_title：General and comparative endocrinology

authors： Jouhanneau M,Szymanski L,Martini M,Ella A,Keller M

更新日期：2013-07-01 00:00:00

abstract：:The zebrafish is a powerful genetic model organism. In recent years, zebrafish has been increasingly used to model human diseases. Due to a number of recent technological advancements, the genetic tool box is now also stocked with sophisticated transgenic and reverse genetic tools. Here, we focus on both commonly used...

journal_title：General and comparative endocrinology

authors： Sugano Y,Neuhauss SC

更新日期：2013-07-01 00:00:00

abstract：:Species differences in the effect of male gonadal androgens on male growth are considered a possible mechanism allowing shifts in magnitude and even direction of sexual size dimorphism (SSD) in squamate reptiles. According to the bipotential growth regulation hypothesis, the androgen testosterone (T) enhances male gro...

journal_title：General and comparative endocrinology

authors： Kubička L,Golinski A,John-Alder H,Kratochvíl L

更新日期：2013-07-01 00:00:00

abstract：:The copepod Calanus finmarchicus is the most abundant zooplankton species in the North Atlantic. While the life history of this crustacean is well studied, little is known about its peptidergic signaling systems despite the fact that these pathways are undoubtedly important components of its physiological/behavioral c...

journal_title：General and comparative endocrinology

authors： Christie AE,Roncalli V,Wu LS,Ganote CL,Doak T,Lenz PH

更新日期：2013-06-15 00:00:00

abstract：:In the current study we describe the identification of novel leptin B homologous gene/s in the four salmonid species Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss), brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus). Homology modeling of Salmo salar (Ss) LepB1/B2 suggests that the pro...

journal_title：General and comparative endocrinology

authors： Angotzi AR,Stefansson SO,Nilsen TO,Rathore RM,Rønnestad I

更新日期：2013-06-15 00:00:00

abstract：:Sexual selection acts on traits that increase reproductive success. Variation in reproductive success is often higher among males than females. Consequently, sexual selection has been studied extensively in males while its possible role in females has only recently attracted considerable attention. In some cooperative...

journal_title：General and comparative endocrinology

authors： Lutermann H,Young AJ,Bennett NC

更新日期：2013-06-15 00:00:00

abstract：:In vertebrates, the peptide cholecystokinin (CCK) is one of the most important neuroregulatory digestive hormones. CCK acts via CCK receptors that are classified into two subtypes, CCK-1 receptor (CCK-1R; formally CCK-A) and CCK-2 receptor (formally CCK-B). In particular, the CCK-1R is involved in digestion and is reg...

journal_title：General and comparative endocrinology

authors： Furutani T,Masumoto T,Fukada H

更新日期：2013-06-01 00:00:00

abstract：:Neonatal handling of captive vertebrates can shape the development of their hypothalamo-pituitary-adrenal (HPA) axis and alter their ability to respond to stressful stimuli later in life. However, the long-term effects of such handling on this endocrine axis in free-living species are not well understood. We investiga...

journal_title：General and comparative endocrinology

authors： Lynn SE,Kern MD,Phillips MM

更新日期：2013-06-01 00:00:00

abstract：:Faecal glucocorticoid metabolite (fGCM) concentrations have been used to evaluate adrenal activity in a variety of species; including as an indicator of the physiological response to social stress. However, across studies, the relationships between dominance rank, social behaviours and adrenal responses can be inconsi...

journal_title：General and comparative endocrinology

authors： Edwards KL,Walker SL,Bodenham RF,Ritchie H,Shultz S

更新日期：2013-06-01 00:00:00

abstract：:Goldfish GH-releasing hormone (gGHRH) has been recently identified and shown to stimulate GH release in goldfish. In goldfish, neuroendocrine regulation of GH release is multifactorial and known stimulators include goldfish ghrelin (gGRLN19) and salmon gonadotropin-releasing hormone (sGnRH), factors that also enhance ...

journal_title：General and comparative endocrinology

authors： Grey CL,Chang JP

更新日期：2013-06-01 00:00:00

abstract：:Corticosterone, at baseline and moderately elevated levels, is thought to regulate energy mobilization during the predictable life-history cycle. In birds, corticosterone is known to be moderately elevated during migration, and some experiments on captive, but migratory active birds have shown that exogenous corticost...

journal_title：General and comparative endocrinology

authors： Eikenaar C,Fritzsch A,Bairlein F

更新日期：2013-06-01 00:00:00

abstract：:Gonadotrophin-releasing hormone (GnRH) is primarily related to reproductive processes in vertebrates. However other physiological roles, including functions in food intake regulation and energy status, have been demonstrated for GnRH in animals. The ten amino acid active peptide is relatively conserved throughout chor...

journal_title：General and comparative endocrinology

authors： Tuziak SM,Volkoff H

更新日期：2013-04-01 00:00:00

abstract：:Testosterone has been suggested to be involved in the regulation of male territorial behavior. For example, seasonal peaks in testosterone typically coincide with periods of intense competition between males for territories and mating partners. However, some species also express territorial behavior outside a breeding...

journal_title：General and comparative endocrinology

authors： Apfelbeck B,Mortega K,Kiefer S,Kipper S,Vellema M,Villavicencio CP,Gahr M,Goymann W

更新日期：2013-04-01 00:00:00

abstract：:Atrazine (ATZ) is a widely used herbicide and is considered an endocrine disruptor of different organisms. However, the molecular interactions of ATZ with biological targets in mammalian endocrine systems are not understood fully. In the present study, we observed that ATZ administration (50, 100 and 200 mg/kg) for 3 ...

journal_title：General and comparative endocrinology

authors： Jin Y,Wang L,Fu Z

更新日期：2013-04-01 00:00:00

abstract：:Thyroid hormones (THs) are crucial for normal vertebrate development and are the one obligate morphogen that drives amphibian metamorphosis. However, contrary to other metamorphosing vertebrates, lampreys exhibit a sharp drop in serum TH early in metamorphosis, and anti-thyroid agents such as potassium perchlorate (KC...

journal_title：General and comparative endocrinology

authors： Stilborn SS,Manzon LA,Schauenberg JD,Manzon RG

更新日期：2013-03-01 00:00:00

abstract：:The effects of fasting and feeding on the brain expression of orexin (OX), tyrosine hydroxylase (TH), peptide Y (PY) and cholecystokinin (CCK) were examined in the blind cavefish Astyanax fasciatus mexicanus. A 10-days fasting period induced increases in both OX and TH brain mRNA expression but had no effect on PYY an...

journal_title：General and comparative endocrinology

authors： Wall A,Volkoff H

更新日期：2013-03-01 00:00:00

abstract：:Over the last decades, the corticosterone stress response has been suggested as a major physiological tool to understand what strategy an individual might adopt in response to environmental perturbations. More recently, another hormone related to parental care--prolactin--has been suggested as a complementary tool to ...

journal_title：General and comparative endocrinology

authors： Angelier F,Wingfield JC,Trouvé C,de Grissac S,Chastel O

更新日期：2013-02-01 00:00:00

abstract：:The widely accepted paradigm that epoxidized methyl farnesoates ("juvenile hormones," JHs) are the principal sesquiterpenoid hormones regulating insect metamorphosis was assessed in Drosophila melanogaster. GC-MS analysis of circulating methyl farnesoids during the mid to late 3rd instar showed that methyl farnesoate ...

journal_title：General and comparative endocrinology

authors： Jones G,Teal P,Henrich VC,Krzywonos A,Sapa A,Wozniak M,Smolka J,Jones D

更新日期：2013-02-01 00:00:00

abstract：:In mammals, downstream function of the nuclear progestin receptor (PGR) can be differentially regulated in each target tissue by altering the expression levels of PGR mRNA variants. Such PGR isoforms have also been identified in birds and reptiles, but not in non-amniote vertebrates. Based upon extensive phylogenetic,...

journal_title：General and comparative endocrinology

authors： Zapater C,Chauvigné F,Fernández-Gómez B,Finn RN,Cerdà J

更新日期：2013-02-01 00:00:00

abstract：:Secretin (Sct), traditionally a gastrointestinal hormone backed by a century long research, is now beginning to be recognized also as a neuroactive peptide. Substantiation by recent evidence on the functional role of Sct in various regions of the brain, especially on its potential neurosecretion from the posterior pit...

journal_title：General and comparative endocrinology

authors： Sekar R,Chow BK

更新日期：2013-01-15 00:00:00

abstract：:Leptin plays key roles in body weight regulation, energy metabolism, food intake, reproduction and immunity in mammals. However, its function in teleosts is still unclear. In the present study, two leptin genes (gLepA and gLepB) and one leptin receptor gene (gLepR) were cloned and characterized in orange-spotted group...

journal_title：General and comparative endocrinology

authors： Zhang H,Chen H,Zhang Y,Li S,Lu D,Zhang H,Meng Z,Liu X,Lin H

更新日期：2013-01-15 00:00:00

abstract：:It is known that in goldfish Carassius auratus, a non-sex changing fish, prostaglandin (PG) treatment can induce female-typical sex behavior in males, and androgen treatment can induce male-typical sex behavior in females. These facts suggest that goldfish have a sexually bipotential brain even after attaining sexual ...

journal_title：General and comparative endocrinology

authors： Saoshiro S,Kawaguchi Y,Hayakawa Y,Kobayashi M

更新日期：2013-01-15 00:00:00

abstract：:It has long been held that cortisol, a glucocorticoid in many vertebrates, performs glucocorticoid and mineralocorticoid actions in the teleost fish since it lacks aldosterone. However, in addition to the counterparts of tetrapod mineralocorticoid receptors (MRs), 11-deoxycorticosterone (DOC) has been recently identif...

journal_title：General and comparative endocrinology

authors： Takahashi H,Sakamoto T

更新日期：2013-01-15 00:00:00

abstract：:The effect of an exogenous glucocorticoid on the lipid metabolism and fatty acid pattern of skeletal muscle in broiler chickens (Gallus gallus domesticus) was investigated in vivo and in vitro. Male Arbor Acres chickens were subjected to dexamethasone (DEX) treatment for 3days. We found that DEX retarded body growth, ...

journal_title：General and comparative endocrinology

authors： Wang XJ,Song ZG,Jiao HC,Lin H

更新日期：2012-12-01 00:00:00

abstract：:Insulin-like peptides (ILPs) regulate numerous functions in insects including growth, development, carbohydrate metabolism and female reproduction. This paper reports the immunohistochemical localization of ILPs in brain neurons of Rhodnius prolixus and their intimate associations with the brain circadian clock system...

journal_title：General and comparative endocrinology

authors： Vafopoulou X,Steel CG

更新日期：2012-11-01 00:00:00

abstract：:Growth hormone (GH) regulates essential physiological functions in teleost fishes, including growth, metabolism, and osmoregulation. Recent studies have identified two clades of putative receptors for GH (GHR1 clade and GHR2 clade) in fishes, both of which are highly expressed in the liver. Moreover, the liver is an i...

journal_title：General and comparative endocrinology

authors： Pierce AL,Breves JP,Moriyama S,Uchida K,Grau EG

更新日期：2012-10-01 00:00:00

abstract：:To better understand the role(s) of progesterone in fish spermatogenesis, we cloned the nuclear progesterone receptor (Pgr) of Atlantic cod. The open-reading frame of the cod pgr consists of 2076 bp, coding for a 691-amino acids-long protein that shows the highest similarity with other piscine Pgr proteins. Functional...

journal_title：General and comparative endocrinology

authors： Chen SX,Almeida FF,Andersson E,Taranger GL,Schmidt R,Schulz RW,Bogerd J

更新日期：2012-10-01 00:00:00

abstract：:Using morpholino antisense oligonucleotide (MO) technology, we blocked leptin A or leptin receptor expression in embryonic zebrafish, and analyzed consequences of leptin A knock-down on fish development. Embryos injected with leptin A or leptin receptor MOs (leptin A or leptin receptor morphants) had smaller bodies an...

journal_title：General and comparative endocrinology

authors： Liu Q,Dalman M,Chen Y,Akhter M,Brahmandam S,Patel Y,Lowe J,Thakkar M,Gregory AV,Phelps D,Riley C,Londraville RL

更新日期：2012-09-15 00:00:00

abstract：:Endothelin (ET)-1 and suppressor of cytokine signaling (SOCS)-3 were respectively found to regulate energy metabolism and hormone signaling in fat cells. Although ET-1 can also regulate the expression of SOCS-3-stimulating hormones, it is still unknown whether ET-1 regulates SOCS-3 gene expression. This study investig...

journal_title：General and comparative endocrinology

authors： Chang HH,Huang YM,Wu CP,Tang YC,Liu CW,Huang CH,Ho LT,Wu LY,Kuo YC,Kao YH

更新日期：2012-09-15 00:00:00

abstract：:Vertebrate eggs are surrounded by an extracellular glycoprotein coat termed zona pellucida (ZP). Integrity of ZP is critical for a correct embryo development. Two zona pellucida protein genes (zpb and zpc) from European eel were characterized, specific qPCR assays developed and their expression in immature males and f...

journal_title：General and comparative endocrinology

authors： Mazzeo I,Peñaranda DS,Gallego V,Hildahl J,Nourizadeh-Lillabadi R,Asturiano JF,Pérez L,Weltzien FA

更新日期：2012-09-01 00:00:00

abstract：:Connective tissue growth factor (CTGF) is a cysteine-rich, matrix-associated heparin-binding protein that is important in many cell types as a regulator of cell proliferation, angiogenesis, cell remodelling and other cellular processes. CTGF is necessary for normal follicle growth and luteinisation in mammals. The avi...

journal_title：General and comparative endocrinology

authors： Zhu G,Kang L,Yang C,Zhang X,Wang M,Jiang Y

更新日期：2012-09-01 00:00:00

abstract：:Insulin-like growth factor-1 (IGF-1) is a member of the vertebrate insulin/insulin-like growth factor/relaxin gene family necessary for growth, reproduction, and survival at both the cellular and organismal level. Its sequence, protein structure, and function have been characterized in mammals, birds, and fish; howeve...

journal_title：General and comparative endocrinology

authors： Sparkman AM,Schwartz TS,Madden JA,Boyken SE,Ford NB,Serb JM,Bronikowski AM

更新日期：2012-08-01 00:00:00

abstract：:The gonadotropins (GTHs) follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are the key regulators of reproduction. We determined the competence of heterologous recombinant GTHs at eliciting steroid secretion from carp ovaries at different reproductive stages. We collected carp ovaries at: early, mid and ...

journal_title：General and comparative endocrinology

authors： Aizen J,Kobayashi M,Selicharova I,Sohn YC,Yoshizaki G,Levavi-Sivan B

更新日期：2012-08-01 00:00:00

abstract：:Proper functioning of the endocrine stress axis requires communication between the stress axis and other regulatory mechanisms. We here describe an intimate interplay between the stress axis and recombinant human leptin (rhLeptin) in a teleostean fish, the common carp Cyprinus carpio. Restraint stress (by netting up t...

journal_title：General and comparative endocrinology

authors： Gorissen M,Bernier NJ,Manuel R,de Gelder S,Metz JR,Huising MO,Flik G

更新日期：2012-08-01 00:00:00

abstract：:More and more evidence indicates that the insulin-like androgenic gland hormone (IAG) plays an important role in male sexual differentiation in crustaceans. In the present study, two IAG isoforms (Fc-IAG1 and Fc-IAG2) were identified from the penaeid shrimp Fenneropenaeus chinensis. Sequence analysis of IAG gene (Fc-I...

journal_title：General and comparative endocrinology

authors： Li S,Li F,Sun Z,Xiang J

更新日期：2012-06-01 00:00:00