Immunoreactive salmon calcitonin-like molecule in crustaceans: high concentrations in Nephrops norvegicus.

abstract：:125I-labeled bovine and tilapia growth hormones were used to assess the presence of growth hormone receptors in membranes prepared from tissues of the tilapia Oreochromis mossambicus. The highest level of specific binding was detected in liver membranes from animals of both sexes and the binding was protein-dependent....

journal_title：General and comparative endocrinology

authors： Ng TB,Leung TC,Cheng CH,Woo NY

更新日期：1992-04-01 00:00:00

abstract：:Effects of adrenal corticosteroids on reproductive and endocrine functions of the gonads are well known, but reciprocal effects of gonadal hormones on the hypothalamo-pituitary-adrenal (HPA) axis and on adrenocortical steroidogenesis in particular have received much less attention. We investigated effects of gonadecto...

journal_title：General and comparative endocrinology

authors： Carsia RV,McIlroy PJ,Cox RM,Barrett M,John-Alder HB

更新日期：2008-09-01 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：:Cytosol and crude nuclear extracts of brains from female Diploptera punctata were found to contain a juvenile hormone-binding protein. The binding kinetics of the cytosol and nuclear juvenile hormone-binding proteins toward racemic [3H]JH III were determined using the dextran-coated charcoal assay. Both proteins show ...

journal_title：General and comparative endocrinology

authors： King LE,Zhang J,Tobe SS

更新日期：1994-04-01 00:00:00

abstract：:Our previous study showed that docosahexaenoic acid (DHA) plays an important role in decreasing lipid accumulation by inducing apoptosis of the adipocytes in grass carp. However, the mechanism involved remains unclear. DHA has been reported as the natural ligand of PPARγ. The present study aimed to assess whether PPAR...

journal_title：General and comparative endocrinology

authors： Jin A,Shi XC,Liu Y,Sun J,Ji H

更新日期：2018-09-15 00:00:00

abstract：:Stress has long lasting effects on physiology, development, behavior, reproductive success and the survival of an individual. These effects are mediated by glucocorticoids, such as corticosterone, via glucocorticoid receptors (GR), however the exact mechanisms underlying these effects are unknown. GR have been widely ...

journal_title：General and comparative endocrinology

authors： Shahbazi M,Schmidt M,Carruth LL

更新日期：2011-12-01 00:00:00

abstract：:A triacetyl form of α-melanocyte-stimulating hormone (MSH) was found in carp (Cyprinus carpio) and goldfish (Carassius auratus), by selective detection of mass profile for cell secretory granules using direct tissue matrix-assisted laser desorption ionization with time-of-flight mass spectrometry (MALDI-TOF MS) analys...

journal_title：General and comparative endocrinology

authors： Yasuda A,Tatsu Y,Shigeri Y

更新日期：2012-01-15 00:00:00

abstract：:In dairy cows, heat stress depresses appetite, leading to decreased food intake, a negative energy balance, and modifies ghrelin levels. Ghrelin is a gut-brain peptide with two major forms: acylated, with an O-n-octanoylated serine in position 3, and nonacylated. To date, the effect of heat stress and estrous cycle on...

journal_title：General and comparative endocrinology

authors： Honig H,Ofer L,Elbaz M,Kaim M,Shinder D,Gershon E

更新日期：2016-09-01 00:00:00

abstract：:In Seriola species, exposure to a long photoperiod regime is known to induce ovarian development. This study examined photoperiodic effects on pituitary gene expression and plasma levels of follicle-stimulating hormone (Fsh) and luteinizing hormone (Lh) in previtellogenic greater amberjack (Seriola dumerili). The fish...

journal_title：General and comparative endocrinology

authors： Nyuji M,Hamada K,Kazeto Y,Mekuchi M,Gen K,Soyano K,Okuzawa K

更新日期：2018-12-01 00:00:00

abstract：:The majority of birds use environmental cues to time their reproduction. Photoperiod is the most dominant cue, but other environmental factors may play a critical role in successful reproduction. Some previous studies show the effect of temperature on the timing of nest building and reproduction. Here we tested if the...

journal_title：General and comparative endocrinology

authors： Renthlei Z,Hmar L,Kumar Trivedi A

更新日期：2021-01-15 00:00:00

abstract：:cDNA encoding the beta type of thyroid hormone receptor (THR) was cloned from a lambda gt10 library prepared from the whole bodies of metamorphosing flounder (Paralichthys olivaceus). The deduced amino acid sequence of the flounder THR beta (fTHR beta 1) showed higher homologies to the known THR beta s of other verteb...

journal_title：General and comparative endocrinology

authors： Yamano K,Inui Y

更新日期：1995-08-01 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：:There has been remarkable progress in discoveries made in the avian brain, particularly over the past two decades. This review first highlights some of the discoveries made in the forebrain and credits the Avian Brain Nomenclature Forum, responsible for changing many of the terms found in the cerebrum and for stimulat...

journal_title：General and comparative endocrinology

authors： Kuenzel WJ

更新日期：2018-01-15 00:00:00

abstract：:The purpose of this study was to examine the effect of the daily infusion of corticosterone on reproductive function in the laying hen and to determine the relationship between the cyclic pattern of plasma concentrations of corticosterone on the open-period for the preovulatory release of LH. An exogenous rhythm of pl...

journal_title：General and comparative endocrinology

authors： Petitte JN,Etches RJ

更新日期：1991-09-01 00:00:00

abstract：:The objectives of this study were to investigate the seasonal changes in pituitary gonadotropins, growth hormone (GH), and estrogen receptor (ER) isoform mRNA in wild female and male largemouth bass (LMB) (Micropterus salmoides) from an unpolluted habitat to better understand reproductive physiology in this ecological...

journal_title：General and comparative endocrinology

authors： Martyniuk CJ,Kroll KJ,Porak WF,Steward C,Grier HJ,Denslow ND

更新日期：2009-09-15 00:00:00

abstract：:In captivity, the adrenocortical stress response can be permanently altered by events that occur during early life. Free-living animals have rarely been examined in this regard. To examine whether early-life events impact the hypothalamo-pituitary-adrenal (HPA) axis in the natural setting, we evaluated the stress resp...

journal_title：General and comparative endocrinology

authors： Landys MM,Goymann W,Slagsvold T

更新日期：2011-11-01 00:00:00

abstract：:Studies with 6-n-propyl-2-thiouracil (PTU) in laboratory rodents have shown that transient neonatal hypothyroidism leads to increased Sertoli cell (SC) number, testis size and sperm production. However, scarce and inconclusive data are available for farm animals. In the present study, Piau pigs received PTU in a gel c...

journal_title：General and comparative endocrinology

authors： Lara NLM,Silva VA Jr,Chiarini-Garcia H,Garcia SK,Debeljuk L,Hess RA,França LR

更新日期：2020-12-01 00:00:00

abstract：:Implantation of cortisol pellets in a dorsal lymph sac reduced the frequency with which toads replaced the strata cornea of the epidermis. Except in a few cases, however, the replaced strata cornea were not shed as in a normal moult. The mean interval between replacements of strata cornea rose from about 9-10 days in ...

journal_title：General and comparative endocrinology

authors： Jørgensen CB

更新日期：1988-07-01 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：:In order to examine the role of thyroid hormones during salmonid development, techniques were developed for quantitative extraction of thyroxine from eggs, whole embryos, and alevins of chum salmon (Oncorhynchus keta) at various stages of development. Frozen eggs, embryos, alevins, or fry were homogenized in ice-cold ...

journal_title：General and comparative endocrinology

authors： Tagawa M,Hirano T

更新日期：1987-10-01 00:00:00

abstract：:Changes in plasma luteinizing hormone (LH), testosterone, thyroxine (T4), and triiodothyronine (T3) and the height of supraorbital combs were compared in captive willow ptarmigan (Lagopus lagopus lagopus) and Svalbard ptarmigan (Lagopus mutus hyperboreus) exposed to an artificial annual cycle of daylength simulating t...

journal_title：General and comparative endocrinology

authors： Stokkan KA,Sharp PJ,Dunn IC,Lea RW

更新日期：1988-04-01 00:00:00

abstract：:The oocytes of the freshwater catfish Heteropneustes fossilis hydrate during hormone-induced meiotic maturation. To investigate if this process may be mediated by aquaporins (AQPs), as it occurs in marine fish producing highly hydrated eggs, the cloning of ovarian AQPs in catfish was carried out. Using degenerate prim...

journal_title：General and comparative endocrinology

authors： Chaube R,Chauvigné F,Tingaud-Sequeira A,Joy KP,Acharjee A,Singh V,Cerdà J

更新日期：2011-01-01 00:00:00

abstract：:The presence and distribution of cholecystokinin (CCK)/gastrin-like immunoreactivity (IR) was examined in the goldfish pituitary. Intense CCK/gastrin-like IR was consistently observed within fibers of the proximal pars distalis (PD), with fewer IR fibers localized in the rostral PD. Within the proximal PD CCK/gastrin-...

journal_title：General and comparative endocrinology

authors： Himick BA,Golosinski AA,Jonsson AC,Peter RE

更新日期：1993-10-01 00:00:00

abstract：:Components of the renin angiotensin system have been identified in many nonmammalian vertebrates. However, in many of these animals, including reptiles, the physiological functions and importance of the system remain unclear. To aid in the study of the system in a reptile we modified a commercially available radioimmu...

journal_title：General and comparative endocrinology

authors： Stephens GA,Caron B

更新日期：1988-06-01 00:00:00

abstract：:Abnormalities in calcium (Ca(2+)) homeostasis are reported in horses with several pathological conditions; however, there is little information on Ca(2+) regulation in horses. The objectives of the present study were to determine the Ca(2+) set-point in healthy horses, to determine whether the Ca(2+)/parathyroid hormo...

journal_title：General and comparative endocrinology

authors： Toribio RE,Kohn CW,Sams RA,Capen CC,Rosol TJ

更新日期：2003-02-15 00:00:00

abstract：:Mammals generally respond to the important metabolic requirements imposed by thermoregulation and pregnancy by increasing plasma concentrations of glucocorticoid that promote the mobilization of body reserves and enhance energy use by tissues. This study examined the impact of distinct ambient temperatures and reprodu...

journal_title：General and comparative endocrinology

authors： Michel CL,Chastel O,Bonnet X

更新日期：2011-05-01 00:00:00

abstract：:Baseline and stress-responsive glucocorticoid (GC) levels were characterized during the active period in free-ranging male and reproductive female little brown myotis (Myotis lucifugus). Bats were trapped and blood was sampled within 3 min of capture at two maternity sites during the summer and at one swarming site pr...

journal_title：General and comparative endocrinology

authors： Reeder DM,Kosteczko NS,Kunz TH,Widmaier EP

更新日期：2004-04-01 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：: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：:Effects of Al on estradiol-induced vitellogenin (VTG) induction were electrophoretically examined in primary hepatocyte cultures in rainbow trout. Hepatocytes were precultured for 2 days and then estradiol-17 beta (E2, 6 x 10(-6) M) and Al (10(-6)-10(-4) M) were added to the incubation medium. The hepatocytes were cul...

journal_title：General and comparative endocrinology

authors： Mugiya Y,Tanahashi A

更新日期：1998-01-01 00:00:00