Frog ANP increases the amiloride-sensitive Na(+) channel activity in urinary bladder cells of Japanese tree frog, Hyla japonica.

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：: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：: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：: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

abstract：:Plasma concentrations of growth hormone (GH) were decreased following the intravenous administration of morphine sulfate. Maximum inhibition of GH secretion was observed 40 min after morphine sulfate challenge. At this time, doses of morphine sulfate (at 5 mg and 50 mg/kg) reduced the GH concentrations by 86 and 90%, ...

journal_title：General and comparative endocrinology

authors： Harvey S,Scanes CG

更新日期：1987-01-01 00:00:00

abstract：:Insulin-like peptides (ILPs) regulate a multitude of biological processes, including metabolism and immunity to infection, and share similar structural motifs across widely divergent taxa. Insulin/insulin-like growth factor signaling (IIS) pathway elements are similarly conserved. We have shown that IIS regulates repr...

journal_title：General and comparative endocrinology

authors： Marquez AG,Pietri JE,Smithers HM,Nuss A,Antonova Y,Drexler AL,Riehle MA,Brown MR,Luckhart S

更新日期：2011-09-01 00:00:00

abstract：:Previous reports have shown that adenosine in rat inhibits both spontaneous and ACTH-induced release of corticosteroids through activation of adenosine A1 receptors. In the present study, we have investigated the possible effect of adenosine in the secretion of corticosteroids in amphibians using a perfusion technique...

journal_title：General and comparative endocrinology

authors： Feuilloley M,Geymonat M,Yon L,Delarue C,Fasolo A,Vaudry H

更新日期：1992-06-01 00:00:00

abstract：:Dopamine (DA) has a pivotal role in avian prolactin (PRL) secretion, acting centrally through D(1) DA receptors to stimulate PRL secretion by operating through vasoactive intestinal peptide (VIP). DA also inhibits PRL secretion by activating D(2) DA receptors at the pituitary level. This study was designed to investig...

journal_title：General and comparative endocrinology

authors： Sartsoongnoen N,Kosonsiriluk S,Prakobsaeng N,Songserm T,Rozenboim I,Halawani ME,Chaiseha Y

更新日期：2008-10-01 00:00:00

abstract：:Like IGF-I, progranulin (pgrn) is a growth factor involved in tumorigenesis and wound healing. We report here the identification and characterization of pgrn cDNA in tilapia and the regulation of its expression by growth hormone (GH). The tilapia pgrn cDNA was cloned by RT-PCR amplification, using gene specific oligon...

journal_title：General and comparative endocrinology

authors： Chen MH,Li YH,Chang Y,Hu SY,Gong HY,Lin GH,Chen TT,Wu JL

更新日期：2007-01-15 00:00:00

abstract：:The fushi tarazu factor 1 (FTZ-F1) gene family constitutes a subgroup of orphan nuclear receptors which can be divided into two groups (LRH/FTF- and SF-1/Ad4BP-like) based on sequence homology, function, and tissue distribution. Analysis of zebrafish FTZ-F1 homologues (zFF1 and ff1b) during embryogenesis indicated dis...

journal_title：General and comparative endocrinology

authors： von Hofsten J,Jones I,Karlsson J,Olsson PE

更新日期：2001-02-01 00:00:00

abstract：:When pigeons were injected with an extract of chicken hypothalamus, the increase in weight of the crop sac showed that prolactin secretion was stimulated. Crop sac weight was no higher after 16 days of injection than it was after 8 days. Pituitary gland content of prolactin and growth hormone was elevated at 8 days, b...

journal_title：General and comparative endocrinology

authors： Hall TR,Chadwick A

更新日期：1984-08-01 00:00:00

abstract：:The androgen concentration in birds' eggs varies with laying order, breeding conditions, and mate attractiveness. In passerine birds, mate attractiveness depends upon song quality. The aim of our study was to evaluate the effect of one criterion used by females to assess male song quality that is to say the presence o...

journal_title：General and comparative endocrinology

authors： Tanvez A,Béguin N,Chastel O,Lacroix A,Leboucher G

更新日期：2004-09-01 00:00:00

abstract：:The effect of thyrotropin releasing hormone (TRH) administered intramuscularly (im) on serum levels of prolactin (Prl) in ovariectomized (ovx) adult turkeys before and following the onset of photostimulation, before and during daily administration (im) of progesterone (P; 0.1, 0.4, or 1.0 mg/kg), estradiol benzoate (E...

journal_title：General and comparative endocrinology

authors： Saeed W,el Halawani ME

更新日期：1986-04-01 00:00:00

abstract：:While there is considerable structural evidence that insulin-like growth factors (IGFs) share a long evolutionary history, little is known about the conservation of IGF function. In order to address this, we have made recombinant hagfish IGF, hence allowing characterization of an IGF from a representative of the primi...

journal_title：General and comparative endocrinology

authors： Upton Z,Francis GL,Chan SJ,Steiner DF,Wallace JC,Ballard FJ

更新日期：1997-01-01 00:00:00

abstract：:Undifferentiated spermatogonia (Aund) or spermatogonial stem cells (SSCs) are committed to the establishment and maintenance of spermatogenesis and fertility throughout a male's life and are located in a highly specialized microenvironment called niche that regulates their fate. Although several studies have been deve...

journal_title：General and comparative endocrinology

authors： Costa GMJ,Sousa AL,Figueiredo AFA,Lacerda SMSN,França LR

更新日期：2019-03-01 00:00:00

abstract：:Changes in plasma cortisol and glucose concentration were studied in carp during acclimation from fresh water (FW) to 1.5% salt water and vice versa. There was an increase in cortisol and glucose concentration during acclimation from FW to salt water which lasted for several days. Reacclimation to FW did not cause cle...

journal_title：General and comparative endocrinology

authors： Abo Hegab S,Hanke W

更新日期：1984-06-01 00:00:00

abstract：:Using antibodies to the amino-terminal region of human parathyroid hormone-related protein (PTHrP) we have demonstrated PTHrP immunoreactivity in pituitaries and plasma of the sea bream (Sparus aurata). Pituitary cells at two distinct locations contained immunodetectable PTHrP; an anterior group in the rostral pars di...

journal_title：General and comparative endocrinology

authors： Danks JA,Devlin AJ,Ho PM,Diefenbach-Jagger H,Power DM,Canario A,Martin TJ,Ingleton PM

更新日期：1993-11-01 00:00:00

abstract：:Ecdysis, or the shedding of the old cuticle, depends on coordinated stereotyped behaviors, regulated by a number of neuropeptides. In the hornworm, Manduca sexta, two neuropeptides interact, namely ecdysis-triggering hormone (ETH) and eclosion hormone. We looked at the effects of ETH in vivo and in vitro, on the brain...

journal_title：General and comparative endocrinology

authors： Asuncion-Uchi M,El Shawa H,Martin T,Fuse M

更新日期：2010-03-01 00:00:00

abstract：:Ghrelin, a peptide hormone produced by the stomach in mammals, stimulates growth hormone release and food intake. Recently, ghrelin was identified and characterized in chicken proventriculus and shown to stimulate growth hormone release but inhibit feed intake. The purpose of this work was to identify and further char...

journal_title：General and comparative endocrinology

authors： Richards MP,Poch SM,McMurtry JP

更新日期：2006-02-01 00:00:00

abstract：:PCB 77 is a dioxin-like PCB that has been shown to reduce circulating thyroid hormone (TH) levels. This may be an important factor contributing to its neurotoxicity, since THs are essential for normal brain development. In this study, we investigated the changes in TH activating and inactivating iodothyronine deiodina...

journal_title：General and comparative endocrinology

authors： Beck V,Roelens SA,Darras VM

更新日期：2006-09-15 00:00:00

abstract：:The gross morphology, histology, and ultrastructure of the thyroid gland of the koala, Phascolarctos cinereus, is described. Generally, the glands were found to contain large-diameter follicles in association with an epithelium of low height. Morphometric analysis demonstrated a high relative thyroid weight (0.3 +/- 0...

journal_title：General and comparative endocrinology

authors： Lawson VJ,Carrick FN

更新日期：1998-06-01 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：:Uterine electromyographic activity (EMG), plasma concentrations of prostaglandin (PG) F and E, and arginine vasotocin (AVT) were simultaneously measured in relation to PGE2-induced premature oviposition and to indomethacin-blocked oviposition in chickens. The administration of indomethacin (5 mg, im) 3 hr before the p...

journal_title：General and comparative endocrinology

authors： Saito N,Shimada K,Koike TI

更新日期：1987-09-01 00:00:00

abstract：:This set of experiments investigated the role of protein kinase-C (PKC) as a second messenger in vasoactive intestinal peptide (VIP)-stimulated prolactin (PRL) secretion and PRL mRNA abundance. Dispersed anterior pituitary cells (5 x 10(5) or 10(6) cells/tube) were isolated from laying turkeys and incubated in 1.0 ml ...

journal_title：General and comparative endocrinology

authors： Sun S,el Halawani ME

更新日期：1995-09-01 00:00:00

abstract：:Wrasse species exhibit a definite daily rhythm in locomotor activity and bury themselves in the sand at the bottom of the ocean at night. It remains unclear how their behavior in locomotor activity is endogenously regulated. The aim of the present study was to clarify the involvement of melatonin and clock genes (Per1...

journal_title：General and comparative endocrinology

authors： Hur SP,Takeuchi Y,Itoh H,Uchimura M,Takahashi K,Kang HC,Lee YD,Kim SJ,Takemura A

更新日期：2012-05-15 00:00:00

abstract：:Serum prolactin (PRL) and luteinizing hormone (LH) levels from mature female turkeys were determined following ovariectomy and daily subcutaneous injections for 4 or 9 days of 0.002-2.0 mg/kg estradiol benzoate (EB), 0.05-2.0 mg/kg progesterone (P), or their combinations. Serum PRL levels were increased (P less than 0...

journal_title：General and comparative endocrinology

authors： El Halawani ME,Silsby JL,Fehrer SC,Behnke EJ

更新日期：1983-10-01 00:00:00

abstract：:The factors influencing prolactin (PRL) variation in birds and in wildlife in general have rarely been investigated with respect to the physiological impacts of exposure to environmental contaminants. We investigated the associations between circulating baseline PRL levels and concentrations of eight persistent organo...

journal_title：General and comparative endocrinology

authors： Verreault J,Verboven N,Gabrielsen GW,Letcher RJ,Chastel O

更新日期：2008-05-01 00:00:00

abstract：:The effects of estradiol (E2) on growth hormone (GH) production was investigated in gonad-intact female goldfish. It was first necessary to generate a specific antibody for use in immunocytochemistry, Western, and dot-blot analyses of GH production. To accomplish this, grass carp GH (gcGH) cDNA was cloned by the rever...

journal_title：General and comparative endocrinology

authors： Zou JJ,Trudeau VL,Cui Z,Brechin J,Mackenzie K,Zhu Z,Houlihan DF,Peter RE

更新日期：1997-04-01 00:00:00

abstract：:Female American tree sparrows (Spizella arborea) were injected with Na131I before, at, or after the onset of photostimulation in order to study the effect of time of thyroidectomy on three components of seasonality: thyroid-dependent photoperiodic ovarian growth, photorefractoriness, and postnuptial (prebasic) molt. T...

journal_title：General and comparative endocrinology

authors： Wilson FE,Reinert BD

更新日期：1999-06-01 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