Expression and functional role of bone morphogenetic proteins (BMPs) in placenta during different stages of pregnancy in water buffalo (Bubalus bubalis).

abstract：:Tadpoles of Rana catesbeiana at TK stages X-XII, about 9 months old, were laparotomized, and the males were implanted intraperitoneally with silastic tubes containing estradiol (E2) for various periods. Male tadpoles implanted with empty tubes served as the controls. Histology, secretions of E2, and testosterone (T) i...

journal_title：General and comparative endocrinology

authors： Chang LT,Yu NW,Hsu CY,Liu HW

更新日期：1996-06-01 00:00:00

abstract：:Transthyretin (TTR) is responsible for a major part of the binding of thyroid hormone to proteins in the plasma in amphibian tadpoles. To characterize the binding properties of amphibian TTRs, the effects of 17 hydrophobic signaling molecules, including 6 endocrine disruptors, on 3,5,3'-l-[(125)I]triiodothyronine ([(1...

journal_title：General and comparative endocrinology

authors： Yamauchi K,Prapunpoj P,Richardson SJ

更新日期：2000-09-01 00:00:00

abstract：:Four monoclonal antibodies (MA-5, MA-10, MA-20, and MA-51) and one polyclonal antibody (ARS-2) against human insulin receptor were used to immunoprecipitate the insulin receptor from several species which had been photolabeled with N epsilon B29-monoazido-benzoyl-[125I]iodoinsulin. All four monoclonal antibodies immun...

journal_title：General and comparative endocrinology

authors： Tong ZQ,Jack E,Moule M,Goldfine ID,Yip CC

更新日期：1994-06-01 00:00:00

abstract：:The serotonin system has been implicated in the modulation of endocrine and behavioral components of reproduction. In this study, we examined endogenous hypothalamic indolamines during sexual differentiation and long-term effects of exogenous steroids during this time. In Experiment 1, Japanese quail were studied duri...

journal_title：General and comparative endocrinology

authors： Abdelnabi MA,Ottinger MA

更新日期：2003-01-01 00:00:00

abstract：:In many mammal species, androgen levels in males are elevated during periods of mating activity, often to facilitate aggressive behavior between males over access to fertile females. However, this pattern might be less obvious in species with a rather low male-male aggression rate, or in those that are not strictly se...

journal_title：General and comparative endocrinology

authors： Wolf TE,Schaebs FS,Bennett NC,Burroughs R,Ganswindt A

更新日期：2018-01-01 00:00:00

abstract：:To maximize fitness, females should invest optimally in the siblings within a litter or brood and adapt this investment to environmental conditions. Chick mass and yolk androgens have been shown to influence the outcome of sibling competition. In birds, asynchronous hatching plays a major role in this process and ofte...

journal_title：General and comparative endocrinology

authors： Poisbleau M,Demongin L,Chastel O,Eens M,Quillfeldt P

更新日期：2011-02-01 00:00:00

abstract：:High levels of the amino acid neurotransmitter glutamate were found in the goldfish hypothalamus and pituitary using high performance liquid chromatography with fluorometric detection. A specific polyclonal antibody to glutamate was generated in the rabbit for immunocytochemistry. Localization studies demonstrated tha...

journal_title：General and comparative endocrinology

authors： Trudeau VL,Sloley BD,Kah O,Mons N,Dulka JG,Peter RE

更新日期：1996-08-01 00:00:00

abstract：:The insulin-like growth factor-1 (IGF-1) plays an important role in the regulation of reproductive function. In the present study, we examined the effects of caloric restriction (CR) on the reproductive lifespan in rats and investigated the potential role of IGF-1. After 10 weeks of treatment, we determined the distri...

journal_title：General and comparative endocrinology

authors： Li L,Fu YC,Xu JJ,Chen XC,Lin XH,Luo LL

更新日期：2011-11-01 00:00:00

abstract：:The vasoconstrictive and cardiovascular actions of a recently identified bradykinin (BK)-related peptide (Gly-Ile-Thr-Ser-Trp-Leu-Pro-Phe) from the little skate, Leucoraja erinacea were examined in the unanesthetised little skate. Intra-arterial administration of a skate BK (0.1-1 nmolkg(-1)) produced a hypertensive r...

journal_title：General and comparative endocrinology

authors： Dasiewicz PJ,Conlon JM,Anderson WG

更新日期：2011-11-01 00:00:00

abstract：:Growth hormone (GH) has many actions in vertebrates, including the regulation of two disparate metabolic processes: growth promotion (anabolic) and the mobilization of stored lipids (catabolic). Our previous studies showed that GH stimulated IGF-1 production in hepatocytes from fed rainbow trout, but in cells from fas...

journal_title：General and comparative endocrinology

authors： Bergan-Roller HE,Ickstadt AT,Kittilson JD,Sheridan MA

更新日期：2017-07-01 00:00:00

abstract：UNLABELLED:Melatonin (MT) release from explanted pineal glands of 3- to 20-week-old chicken was investigated in a 5-day perifusion system. Both the chicken and the explanted glands were exposed to various environmental lighting regimens. OBSERVATIONS:(1) The explanted chicken pineal is sensitive to direct light. Conti...

journal_title：General and comparative endocrinology

authors： Csernus V,Ghosh M,Mess B

更新日期：1998-04-01 00:00:00

abstract：:The role of cyclic AMP (cAMP) as mediator of ACTH action on interrenal steroidogenesis was evaluated in juvenile coho salmon (Oncorhynchus kisutch). Head kidneys (containing the interrenal cells) were incubated in the absence or presence of putative adenylate cyclase activators (forskolin and cholera toxin), ACTH comb...

journal_title：General and comparative endocrinology

authors： Patiño R,Bradford CS,Schreck CB

更新日期：1986-08-01 00:00:00

abstract：:Food abundance is closely associated with reproductive readiness in vertebrates. Food scarcity can activate the hypothalamo-pituitary-adrenal axis, decrease sex steroid secretion, and dampen reproductive behavior. However, the mechanisms underlying these transient effects are unclear. Gonadotropin inhibitory hormone (...

journal_title：General and comparative endocrinology

authors： Lynn SE,Perfito N,Guardado D,Bentley GE

更新日期：2015-05-01 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：:In teleost fish, the predominant brain form of cytochrome P450 aromatase (P450aromB) is a neural marker of estrogen effect, and an entry point for studying the role of hormonal and environmental estrogens on neurodevelopment and neuroplasticity. As part of a project using zebrafish to investigate these issues, we deve...

journal_title：General and comparative endocrinology

authors： Sawyer SJ,Gerstner KA,Callard GV

更新日期：2006-06-01 00:00:00

abstract：:Dopamine receptors in the pituitary of the African catfish, Clarias gariepinus, were characterized using [3H]spiperone as radioligand. Specific binding of [3H]spiperone to pituitary membranes reached equilibrium within 60 min of incubation. The binding of the radioligand was tissue specific since the amount of binding...

journal_title：General and comparative endocrinology

authors： Van Asselt LA,Goos HJ,De Leeuw R,Peter RE,Hol EM,Wassenberg FP,Van Oordt PG

更新日期：1990-10-01 00:00:00

abstract：:The larval ring gland and adult corpus allatum (CA) of Drosophila melanogaster produce at least three sesquiterpenoid products: methyl farnesoate (MF), juvenile hormone III (JHIII), and JHIII bisepoxide (JHB(3)). Our understanding of neuropeptide regulation of sesquiterpenoid biosynthesis in D. melanogaster has been h...

journal_title：General and comparative endocrinology

authors： Wang C,Zhang J,Tobe SS,Bendena WG

更新日期：2012-05-01 00:00:00

abstract：:This experiment was performed on two groups of male Japanese quail. One had been maintained in our laboratory as a closed colony (S-group), and the other had been obtained from a commercial source (R-group). Different responses of gonadal function were found between two groups following either testosterone treatment o...

journal_title：General and comparative endocrinology

authors： Konishi H,Wada M,Homma K

更新日期：1985-09-01 00:00:00

abstract：:Melatonin is a much conserved feature in vertebrates that plays a central role in the entrainment of daily and annual physiological rhythms. Investigations aiming at understanding how melatonin mediates the effects of photoperiod on crucial functions and behaviors have been very active in the last decades, particularl...

journal_title：General and comparative endocrinology

authors： Falcón J,Migaud H,Muñoz-Cueto JA,Carrillo M

更新日期：2010-02-01 00:00:00

abstract：:The skeletal muscles of ectothermic vertebrates possess an elevated glyconeogenic capacity that is responsible for a major portion of lactate removal and glycogen resynthesis following exercise. In lizards, changes in plasma hormone levels and the influence of differing hormone levels on muscle metabolism postexercise...

journal_title：General and comparative endocrinology

authors： Scholnick DA,Weinstein RB,Gleeson TT

更新日期：1997-05-01 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：:The presence of multiple forms of gonadotropin-releasing hormone (GnRH) within a single brain is common among vertebrate species. In previous studies of reptiles, two forms of GnRH were isolated from the brain of alligators and the primary structure was determined to be that of chicken (c)GnRH-I and cGnRH-II. GnRH has...

journal_title：General and comparative endocrinology

authors： Lescheid DW,Rosen GJ,Bridge AE,Jones RE,Warby CM,Sherwood NM

更新日期：1997-11-01 00:00:00

abstract：:The in vivo actions of human and fish insulin-like growth factor (IGF)-I have been compared to extend the understanding of the metabolism of IGFs in fish and to identify potential differences in their actions. The effects of acute administration of these proteins on the incorporation of glucose into muscle glycogen an...

journal_title：General and comparative endocrinology

authors： Degger B,Upton Z,Soole K,Collet C,Richardson N

更新日期：2000-03-01 00:00:00

abstract：:Using genetic monosex male and female rainbow trout populations, the potential sex differences in the central expression of estrogen receptors (esr1, esr2a, esr2b), brain aromatase (cyp19a1b) and some other steroidogenic enzymes was studied over the period of sex differentiation (from 35 to 63 dpf: days post-fertiliza...

journal_title：General and comparative endocrinology

authors： Vizziano-Cantonnet D,Anglade I,Pellegrini E,Gueguen MM,Fostier A,Guiguen Y,Kah O

更新日期：2011-01-15 00:00:00

abstract：:A radioimmunoassay (RIA) was developed to measure cortisone in Atlantic salmon plasma. Diatomaceous earth microcolumn chromatography was used to separate the cortisone from other steroids. The RIA method following chromatography was validated by analyzing each of six samples of blood by double isotope derivative assay...

journal_title：General and comparative endocrinology

authors： Weisbart M,McGowan LK

更新日期：1984-09-01 00:00:00

abstract：:Interrenal activity in relation to sexual maturity in male rainbow trout, and the effects of in vivo treatment with 11-ketotestosterone (11-KT) were investigated. Silastic pellets containing either 11-KT or no steroid were implanted in maturing male and immature male and female rainbow trout for a total of 11 weeks. T...

journal_title：General and comparative endocrinology

authors： Young G,Thorarensen H,Davie PS

更新日期：1996-09-01 00:00:00

abstract：:Elasmobranchs (sharks, skates, and rays) are a primarily carnivorous group of fish, consuming few carbohydrates. Further, they tend to exhibit delayed responses to glucose and insulin administration in vivo relative to mammals, leading to a presumption of glucose-intolerance. To investigate the glucoregulatory capabil...

journal_title：General and comparative endocrinology

authors： Deck CA,Gary Anderson W,Walsh PJ

更新日期：2017-06-01 00:00:00

abstract：:Identification of orthologs of vertebrate neuropeptides and hypothalamic hormones in the neural complex of ascidians suggests integral roles of the ascidian neural complex in the endocrine system. In the present study, we investigated endocrine-related genes expressed in the neural complex of Ciona intestinalis. Compr...

journal_title：General and comparative endocrinology

authors： Sekiguchi T,Kawashima T,Satou Y,Satoh N

更新日期：2007-01-15 00:00:00

abstract：:We prepared monoclonal antibodies (mAbs) against a recombinant tethered follicle-stimulating hormone (rec-FSH) from Japanese eel Anguilla japonica that was produced in Escherichia coli. Positive hybridomas (clones eFA-C5, eFA-C10, eFA-C11, eFA-C12, eFA-C13, and eFB-C14) were selected by using the eel FSH antigen in EL...

journal_title：General and comparative endocrinology

authors： Kim DJ,Park CW,Kim DW,Park HK,Byambaragchaa M,Lee NS,Hong SM,Seo MY,Kang MH,Min KS

更新日期：2016-07-01 00:00:00

abstract：:We investigated the development of thyroid function during the transition to endothermy in red-winged blackbirds (Agelaius phoeniceus). Thermoregulatory capabilities of blackbirds improve markedly over their relatively short nestling period (10-12 days), with the most striking improvements occurring between days 6 and...

journal_title：General and comparative endocrinology

authors： Olson JM,McNabb FM,Jablonski MS,Ferris DV

更新日期：1999-11-01 00:00:00