abstract：:Gonads are the main source of sex steroids, which have been implicated in the regulation of sexually differentiated behavior, such as reproductive and aggressive displays. In the Mozambique tilapia (Oreochromis mossambicus) territorial males have higher androgen levels than non-territorials, express reproductive behav...

journal_title：General and comparative endocrinology

authors： Almeida O,Canário AV,Oliveira RF

更新日期：2014-10-01 00:00:00

abstract：:Although present at relatively low number in the testis, spermatogonial stem cells (SSCs) are crucial for the establishment and maintenance of spermatogenesis in eukaryotes and, until recently, those cells were investigated in fish using morphological criteria. The isolation and characterization of these cells in fish...

journal_title：General and comparative endocrinology

authors： Lacerda SM,Costa GM,de França LR

更新日期：2014-10-01 00:00:00

abstract：:Chemical signals (both volatile and non-volatile) form the major communication channels in animals. These signals are transferred mainly through excretory sources to facilitate inter-individual communication. In particular, the reproductive cycle of female mammals, including goats, exhibits significant changes in the ...

journal_title：General and comparative endocrinology

authors： SankarGanesh D,Ramachandran R,Muniasamy S,Saravanakumar VR,Suriyakalaa U,Kannan S,Archunan G,Achiraman S

更新日期：2014-09-15 00:00:00

abstract：:Triorganotins, such as tributyltin chloride (TBTCl), are environmental contaminants that are commonly found in the antifouling paints used in ships and other vessels. The importance of TBTCl as an endocrine-disrupting chemical (EDC) in different animal models is well known; however, its adverse effects on the thyroid ...

journal_title：General and comparative endocrinology

authors： Sharan S,Nikhil K,Roy P

更新日期：2014-09-15 00:00:00

abstract：:Hormone-sensitive lipase (hsl) plays a pivotal role in regulation of lipolysis in mammals, but information is very scarce about its gene structure and function in fish. In this study, two distinct hsl cDNAs, designated hsl1 and hsl2, were firstly isolated and characterized from yellow catfish Pelteobagrus fulvidraco. ...

journal_title：General and comparative endocrinology

authors： Chen QL,Luo Z,Song YF,Wu K,Huang C,Pan YX,Zhu QL

更新日期：2014-09-15 00:00:00

abstract：:High plasma levels of testosterone at the beginning of the breeding season adjust male physiology for mating and promote territorial behavior in birds. Conversely intra-sexual competition may elicit a temporary increase in circulating testosterone. Male black redstarts (Phoenicurus ochruros) from migratory populations...

journal_title：General and comparative endocrinology

authors： Villavicencio CP,Blas J,Goymann W

更新日期：2014-09-01 00:00:00

abstract：:Gonad-stimulating substance (GSS) in starfish is the only known invertebrate peptide hormone responsible for final gamete maturation, rendering it functionally analogous to gonadotropins in vertebrates. In breeding season (stage V), GSS stimulates oocyte maturation to induce 1-methyladenine (1-MeAde) by ovarian follic...

journal_title：General and comparative endocrinology

authors： Mita M,Haraguchi S,Watanabe M,Takeshige Y,Yamamoto K,Tsutsui K

更新日期：2014-09-01 00:00:00

abstract：:Strong individual and life-history variation in serum glucocorticoids has been documented in many wildlife species. Less is known about variation in hypothalamic-pituitary-adrenal (HPA) axis responsiveness and its impact on metabolism. We challenged 18 free-ranging adult male northern elephant seals (NES) with an intr...

journal_title：General and comparative endocrinology

authors： Ensminger DC,Somo DA,Houser DS,Crocker DE

更新日期：2014-08-01 00:00:00

abstract：:Arginine vasotocin (AVT) and isotocin (IT) are fish hypothalamic nonapeptides involved in numerous social and reproductive behaviors. Vasotocinergic and isotocinergic fibers project to different brain areas where peptides act as neurotransmitters and/or neuromodulators. In this study, we measured whole brain levels of...

journal_title：General and comparative endocrinology

authors： Kulczykowska E,Kleszczyńska A

更新日期：2014-08-01 00:00:00

abstract：:Muskrat is a seasonal breeder, males of which secret musk from paired perineal scented glands found beneath the skin at the ventral base of the tail for attracting female during the breeding season. The aim of this study was to investigate the seasonal changes of expression of androgen receptor (AR) in the scented gla...

journal_title：General and comparative endocrinology

authors： Lu L,Liu S,Li Q,Huang S,Bao L,Sheng X,Han Y,Watanabe G,Taya K,Weng Q

更新日期：2014-08-01 00:00:00

abstract：:Two peptides with sequence similarities to growth hormone releasing hormone (GHRH) have been identified by analysis of the chicken genome. One of these peptides, chicken (c) GHRH-LP (like peptide) was previously found to poorly bind to chicken pituitary membranes or to cloned and expressed chicken GHRH receptors and h...

journal_title：General and comparative endocrinology

authors： Harvey S,Gineste C,Gaylinn BD

更新日期：2014-08-01 00:00:00

abstract：:Avian reproduction entails complex endocrine interactions at the hypothalamic and ovarian levels. The initiation of the reproductive season is due to the reduction in melatonin and GnIH production as day length increases. The decline in GnIH permits GnRH and gonadotropin secretion starting follicle growth. Follicular ...

journal_title：General and comparative endocrinology

authors： Rangel PL,Gutierrez CG

更新日期：2014-07-01 00:00:00

abstract：:Increasing evidence shows that growth hormone (GH) expression is not limited to the pituitary, as it can be produced in many other tissues. It is known that growth hormone (GH) plays a role in the control of reproductive tract development. Acting as an endocrine, paracrine and/or autocrine regulator, GH influences pro...

journal_title：General and comparative endocrinology

authors： Luna M,Martínez-Moreno CG,Ahumada-Solórzano MS,Harvey S,Carranza M,Arámburo C

更新日期：2014-07-01 00:00:00

abstract：:In this study, we cloned a full-length cDNA encoding vitellogenin (Vg) in the Fujian oyster Crassostrea angulata. The complete Vg cDNA consists of 5160 nucleotides with a long open reading frame encoding 1641 amino acid residues. The deduced amino acid sequence shared high similarity with the Vgs of other mollusc, fis...

journal_title：General and comparative endocrinology

authors： Ni J,Zeng Z,Kong D,Hou L,Huang H,Ke C

更新日期：2014-06-01 00:00:00

abstract：:The Remipedia is a small, recently described crustacean class that inhabits submerged marine/anchialine cave systems. Phylogenetic and morphological investigations support a sister group relationship between these animals and the hexapods. The recent deposition of numerous (>100,000) transcriptome shotgun assembly seq...

journal_title：General and comparative endocrinology

authors： Christie AE

更新日期：2014-05-15 00:00:00

abstract：:Aromatase is a key regulator of circulating testosterone (T) and 17-β-oestradiol (E2), two steroids which are critical to the development, maintenance and function of reproductive tissues. The role of aromatase in sexual differentiation in oviparous (egg-laying) reptiles is well understood, yet has never been explored...

journal_title：General and comparative endocrinology

authors： Parsley LM,Wapstra E,Jones SM

更新日期：2014-05-01 00:00:00

abstract：:Hyperglycemia that is caused by the release of crustacean hyperglycemic hormone (CHH) from the sinus gland to hemolymph is one of the hallmark physiological phenomena, occurring in decapod crustaceans experiencing stressful conditions. However, the mechanism(s) by which such elevated glucose levels return to resting l...

journal_title：General and comparative endocrinology

authors： Chung JS

更新日期：2014-04-01 00:00:00

abstract：:Enriched environmental condition (EC) has been known to reduce anxiety. In this study, we examined whether an EC could enhance anxiolytic behavior in the Indian field mouse Mus booduga by down-regulating the expression of glucocorticoid receptor (GR) through microRNA-124a. Wild individuals were captured at agricultura...

journal_title：General and comparative endocrinology

authors： Durairaj RV,Koilmani ER

更新日期：2014-04-01 00:00:00

abstract：:This paper presents a first-time report on the localization, structure and seasonal secretory activity of the Y-organ of a grapsid brachyuran crab (Metopograpsus messor). Having exhibited discrete seasonality with reference to the programming of molt and reproduction, this brachyuran crab has offered us an excellent m...

journal_title：General and comparative endocrinology

authors： Shyamal S,Sudha K,Gayathri N,Anilkumar G

更新日期：2014-01-15 00:00:00

abstract：:The effects of intraperitoneal injections of cholecystokinin (CCK), apelin, ghrelin, and orexin on food intake were examined in the blind cavefish Astyanax fasciatus mexicanus. CCK (50ng/g) induced a decrease in food intake whereas apelin (100ng/g), orexin (100ng/g), and ghrelin (100ng/g) induced an increase in food i...

journal_title：General and comparative endocrinology

authors： Penney CC,Volkoff H

更新日期：2014-01-15 00:00:00

abstract：:In the last two decades, maternally derived yolk androgens have been shown to significantly alter offspring development, and a number of these effects persist into adulthood. However, little is known about their underlying mechanisms. Mechanisms that have been suggested are changes in the endogenous androgen productio...

journal_title：General and comparative endocrinology

authors： Vergauwen J,Groothuis TG,Eens M,Müller W

更新日期：2014-01-01 00:00:00

abstract：:The crab-eating frog Fejervarya cancrivora inhabits mangrove swamps and marshes in Southeast Asia. In the present study, circulating angiotensin II (Ang II), aldosterone (Aldo), arginine vasotocin (AVT), and corticosterone (Cort) concentrations as well as various blood parameters were studied under osmotically stressf...

journal_title：General and comparative endocrinology

authors： Uchiyama M,Maejima S,Wong MK,Preyavichyapugdee N,Wanichanon C,Hyodo S,Takei Y,Matuda K

更新日期：2014-01-01 00:00:00

abstract：:The first studies that identified leptin and its receptor (LepR) in mammals were based on mutant animals that displayed dramatic changes in body-weight and regulation of energy homeostasis. Subsequent studies have shown that a deficiency of leptin or LepR in homoeothermic mammals results in hyperphagia, obesity, infer...

journal_title：General and comparative endocrinology

authors： Chisada S,Kurokawa T,Murashita K,Rønnestad I,Taniguchi Y,Toyoda A,Sakaki Y,Takeda S,Yoshiura Y

更新日期：2014-01-01 00:00:00

abstract：:We have examined the distribution and physiological effects of three evolutionarily and sequence-related neuropeptides in Rhodnius prolixus. These neuropeptides, adipokinetic hormone (RhoprAKH), corazonin (CRZ) and adipokinetic hormone/corazonin-related peptide (RhoprACP) are present in distinct, non-overlapping neuro...

journal_title：General and comparative endocrinology

authors： Patel H,Orchard I,Veenstra JA,Lange AB

更新日期：2014-01-01 00:00:00

abstract：:Ovaprim (OVP) is used as an effective spawning inducer for artificial breeding of fishes and contains a salmon gonadotropin-releasing hormone analogue and a dopamine receptor-2 antagonist, domperidone. Previously, we have shown that vasotocin (VT) stimulates ovarian final oocyte maturation, hydration, and ovulation th...

journal_title：General and comparative endocrinology

authors： Chaube R,Singh RK,Joy KP

更新日期：2014-01-01 00:00:00

abstract：:Age-related changes in the concentration of factors like TGF-1β, DHEA-S and IGF-1 may increase the risk of disease and illnesses in advanced life. A better understanding of these changes would aid in the development of more appropriate treatments and/or preventative care for many conditions associated with age. Due to...

journal_title：General and comparative endocrinology

authors： Willis EL,Wolf RF,White GL,McFarlane D

更新日期：2014-01-01 00:00:00

abstract：:The somatotropic axis, or growth hormone-insulin-like growth factor-1 (GH-IGF-1) axis, of fish is involved in numerous physiological process including regulation of ionic and osmotic balance, lipid, carbohydrate and protein metabolism, growth, reproduction, immune function and behavior. It is thought that GH plays a r...

journal_title：General and comparative endocrinology

authors： Besseau L,Fuentès M,Sauzet S,Beauchaud M,Chatain B,Covès D,Boeuf G,Falcón J

更新日期：2013-12-01 00:00:00

abstract：:The tiger (Panthera tigris) faces a great risk of extinction as its wild numbers have plummeted due to poaching and habitat destruction so ex-situ conservation programs are becoming ever more necessary. Reliable non-invasive biomarkers of the stress hormone (cortisol) are necessary for assessing the health and welfare...

journal_title：General and comparative endocrinology

authors： Narayan EJ,Parnell T,Clark G,Martin-Vegue P,Mucci A,Hero JM

更新日期：2013-12-01 00:00:00

abstract：:Low birth weight is correlated with low adiposity at birth, a phenotype that influences neonatal survival and later adiposity. A better understanding of events affecting the fetal adipose tissue development and its functionality around birth is thus needed. This study was undertaken to examine the impact of spontaneou...

journal_title：General and comparative endocrinology

authors： Gondret F,Père MC,Tacher S,Daré S,Trefeu C,Le Huërou-Luron I,Louveau I

更新日期：2013-12-01 00:00:00

abstract：:The hypothalamic-pituitary-adrenal (HPA) axis releases glucocorticoids (GCs), or stress hormones, during the vertebrate stress response. GCs can both enhance and suppress the immune system depending on whether the experienced stressor is acute or chronic and what aspect of immune function is measured. More research is...

journal_title：General and comparative endocrinology

authors： Brooks KC,Mateo JM

更新日期：2013-11-01 00:00:00

abstract：:Neurotransmitters and neurohormones are agents that control gonad maturation in decapod crustaceans. Of these, serotonin (5-HT) and dopamine (DA) are neurotransmitters with known antagonist roles in female reproduction, whilst gonadotropin-releasing hormones (GnRHs) and corazonin (Crz) are neurohormones that exercise ...

journal_title：General and comparative endocrinology

authors： Siangcham T,Tinikul Y,Poljaroen J,Sroyraya M,Changklungmoa N,Phoungpetchara I,Kankuan W,Sumpownon C,Wanichanon C,Hanna PJ,Sobhon P

更新日期：2013-11-01 00:00:00

abstract：:Jawed vertebrates (Gnasthostomes) are broadly separated into cartilaginous fishes (Chondricthyes) and bony vertebrates (Osteichthyes). Cartilaginous fishes are divided into chimaeras (e.g. ratfish, rabbit fish and elephant shark) and elasmobranchs (e.g. sharks, rays and skates). Both cartilaginous fish and bony verteb...

journal_title：General and comparative endocrinology

authors： D'Souza DG,Rana K,Milley KM,MacLean HE,Zajac JD,Bell J,Brenner S,Venkatesh B,Richardson SJ,Danks JA

更新日期：2013-11-01 00:00:00

abstract：:The class Chondrichthyes, that includes Elasmobranchii and Holocephali, is a diverse group of fish occupying a key position at the base of vertebrate evolution. Their evolutionary success is greatly attributed to their wide range of reproductive strategies controlled by different endocrine mechanics. As in other verte...

journal_title：General and comparative endocrinology

authors： Awruch CA

更新日期：2013-10-01 00:00:00

abstract：:A growing number of studies have examined transcriptional responses to sex steroids along the hypothalamic-pituitary-gonadal axis in teleost fishes. However, data are lacking on the molecular cascades that underlie progesterone signaling. The objective of this study was to characterize the transcriptional response in ...

journal_title：General and comparative endocrinology

authors： Garcia-Reyero N,Martyniuk CJ,Kroll KJ,Escalon BL,Spade DJ,Denslow ND

更新日期：2013-10-01 00:00:00

abstract：:Sex pheromones rapidly affect endocrine physiology and behaviour, but little is known about their effects on gene expression in the neural tissues that mediate olfactory processing. In this study, we exposed male goldfish for 6h to waterborne 17,20βP (4.3 nM) and PGF2α (3 nM), the main pre-ovulatory and post-ovulatory...

journal_title：General and comparative endocrinology

authors： Lado WE,Zhang D,Mennigen JA,Zamora JM,Popesku JT,Trudeau VL

更新日期：2013-10-01 00:00:00

abstract：:Intersex is defined as the simultaneous presence of male and female gonadal tissue in a gonochoristic (fixed-sex) species. The intersex condition has been documented in both wild and laboratory animals, including fish, amphibians, and reptiles. In aquatic animals, intersex is often viewed as a signature effect of expo...

journal_title：General and comparative endocrinology

authors： Bahamonde PA,Munkittrick KR,Martyniuk CJ

更新日期：2013-10-01 00:00:00

abstract：:The steroid hormone 5α-dihydrotestosterone (DHT) is one of the most physiologically important androgens in male vertebrates, with the exception of teleost fish, in which it is generally assumed that DHT does not play any major physiological role. However, this assumption is challenged by the fact that all the componen...

journal_title：General and comparative endocrinology

authors： Margiotta-Casaluci L,Courant F,Antignac JP,Le Bizec B,Sumpter JP

更新日期：2013-09-15 00:00:00

abstract：:Five neuropeptide genes are classified in the FMRF-related (FaRP) group: the Fmrf, dromyosuppressin (Dms), drosulfakinin (Dsk), neuropeptide F (npf) and short neuropeptide F (sNPF) genes coding for 8, 1, 2, 1 and 4 peptides, respectively. In order to compare their effects on the locomotor activity of Drosophila adults...

journal_title：General and comparative endocrinology

authors： Kiss B,Szlanka T,Zvara Á,Žurovec M,Sery M,Kakaš Š,Ramasz B,Hegedűs Z,Lukacsovich T,Puskás L,Fónagy A,Kiss I

更新日期：2013-09-15 00:00:00

abstract：:Corticosterone (CORT) content of feathers is a potent source of information about activation of hypothalamus-pituitary-adrenal (HPA) axis during feather growth, which is used for assessment of well-being and stress history of individuals and populations in avian studies. However, little is known about factors affectin...

journal_title：General and comparative endocrinology

authors： Hõrak P,Männiste M,Meitern R,Sild E,Saks L,Sepp T

更新日期：2013-09-15 00:00:00

abstract：:The kisspeptin system is now accepted as a key regulator of vertebrate reproductive function, particularly the onset of puberty. In teleosts, the stimulatory effect of exogenous kisspeptins has been demonstrated mainly at the hypothalamic and pituitary levels of the reproductive axis, with very limited information per...

journal_title：General and comparative endocrinology

authors： Nocillado JN,Zohar Y,Biran J,Levavi-Sivan B,Elizur A

更新日期：2013-09-15 00:00:00