Effects of dopamine on the adrenal gland of Podarcis sicula (Reptilia, Lacertidae).

abstract：:Several lines of evidence support a role of endogenous opioids in the brain's regulation of gonadotropin secretion in birds and mammals, although the neuroanatomic basis of such regulation is not clear. We used double-label fluorescence immunohistochemistry employing polyclonal antisera raised in sheep against chicken...

journal_title：General and comparative endocrinology

authors： Millam JR,Wang R,Craig-Veit CB,Siopes TD

更新日期：2002-06-15 00:00:00

abstract：:GPCRs are the largest family of receptors accounting for about 30% of the current drug targets. However, it is difficult to fully elucidate the mechanisms regulating intracellular GPCR signal regulation. It is thus important to consider and investigate GPCRs with respect to endogenous situations. Our group has been in...

journal_title：General and comparative endocrinology

authors： Kobayashi Y

更新日期：2020-07-01 00:00:00

abstract：:Adrenomedullin (AM) is a multifunctional evolutionarily highly conserved peptide. Although its genomic and amino acid (aa) sequences are known in several mammalian species and in fish, the structure of the AM gene remains unknown in intermediate phyla, including birds. Here, we report the structure and aa sequence of ...

journal_title：General and comparative endocrinology

authors： Zudaire E,Cuesta N,Martínez A,Cuttitta F

更新日期：2005-08-01 00:00:00

abstract：:Reptilia is the only vertebrate class in which cDNA for the gonadotropin beta subunit precursor molecule has not been cloned. We have isolated the full-length cDNA clone encoding the LH beta subunit precursor molecule and a partial cDNA clone encoding the FSH beta subunit precursor molecule from a pituitary cDNA libra...

journal_title：General and comparative endocrinology

authors： Aizawa Y,Ishii S

更新日期：2003-07-01 00:00:00

abstract：:The developmental expression of gonadotropin-releasing hormone receptor (GnRH-R) and its splice variants was examined in the gonads of tammar wallaby pouch young in order to elucidate the functional role of GnRH-R in the developing testis and ovary. Wallaby GnRH-R, like eutherian GnRH-Rs, contains three exons and two ...

journal_title：General and comparative endocrinology

authors： Cheung TC,Hearn JP

更新日期：2003-08-01 00:00:00

abstract：:The asymmetrical endostyle of Branchiostoma larvae contains two different zones of mucus-producing cells which metamorphose to the paired zones 2 and 4 respectively in the endostyle of the adult. In both the larva and the adult these zones are parts of the food-trapping mechanism. An endostyle zone, which has a positi...

journal_title：General and comparative endocrinology

authors： Fredriksson G,Ericson LE,Olsson R

更新日期：1984-11-01 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：:In rainbow trout, a variable in vivo pituitary sensitivity to GnRH has been previously observed, depending on the stage of oogenesis. The purpose of the present work was to study, in vitro, the role of oestradiol (E2) and 17 alpha-hydroxy,20 beta-dihydroprogesterone (17 alpha 20 beta P), respectively, involved in vite...

journal_title：General and comparative endocrinology

authors： Weil C,Marcuzzi O

更新日期：1990-09-01 00:00:00

abstract：:The brain of many teleost fish species, including the goldfish Carassius auratus, expresses exceptionally high levels of cytochrome P450 aromatase (estrogen synthetase). To begin investigating the molecular and cellular targets of estrogen action in goldfish brain, a polymerase chain reaction (PCR) cloning strategy wa...

journal_title：General and comparative endocrinology

authors： Tchoudakova A,Pathak S,Callard GV

更新日期：1999-03-01 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：:Allatostatin-like immunoreactivity was demonstrated in the central nervous system (CNS) neurons of the freshwater pulmonate snails Bulinus globosus (Planorbidae) and Stagnicola elodes (Lymnaeidae). Immunopositive neurons were localized using a monoclonal antibody highly specific to allatostatin I (APSGAQRLYGFGL-amide)...

journal_title：General and comparative endocrinology

authors： Rudolph PH,Stay B

更新日期：1997-05-01 00:00:00

abstract：:Changes in plasma levels of steroid hormones in pre-spawning chum salmon (Oncorhynchus keta) were examined for 6 years in association with sexual maturation. Fish were sampled along their homing pathway from the coastal sea to the spawning ground from 1995 to 2000. Plasma levels of testosterone (T), 11-ketotestosteron...

journal_title：General and comparative endocrinology

authors： Onuma T,Higashi Y,Ando H,Ban M,Ueda H,Urano A

更新日期：2003-09-01 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：:Neuropeptides are ancient endocrine components which have evolved to regulate many aspects of biology across the animal kingdom including behaviour, development and metabolism. To supplement current knowledge, we have utilized a transcriptome series describing larval development in the ornate spiny lobster, Panulirus ...

journal_title：General and comparative endocrinology

authors： Hyde CJ,Nguyen T,Fitzgibbon QP,Elizur A,Smith GG,Ventura T

更新日期：2020-08-01 00:00:00

abstract：:Gonadotropin-releasing hormones (GnRH) constitute a family of neuropeptides which are important regulators of reproduction in vertebrates. The effect of mammalian GnRH (mGnRH), salmon GnRH, chicken GnRH-I, chicken GnRH-II, and lamprey GnRH-I on [3H]thymidine incorporation into DNA of dissociated gonadal cells of marin...

journal_title：General and comparative endocrinology

authors： Pazos AJ,Mathieu M

更新日期：1999-01-01 00:00:00

abstract：:The distribution and identity of the various endocrine cell types were examined in the pancreas, stomach, and anterior intestine of the phylogenetically ancient actinopterygian, the gar (Lepisosteus osseus L.), using immunohistochemistry. Antisera used were directed against several insulins (INSs) and somatostatins (S...

journal_title：General and comparative endocrinology

authors： Groff KE,Youson JH

更新日期：1997-04-01 00:00:00

abstract：:In mammals, leptin plays an important role in puberty and reproduction and leptin is regulated by sex steroids. Elevated leptin levels have been associated with sexual maturation in some teleosts such as Atlantic salmon. In the present study, primary cultures of Atlantic salmon hepatocytes were used to investigate the...

journal_title：General and comparative endocrinology

authors： Trombley S,Rocha A,Schmitz M

更新日期：2015-09-15 00:00:00

abstract：:The venoms of cone snails (genus Conus) are remarkably complex, consisting of hundreds of typically short, disulfide-rich peptides termed conotoxins. These peptides have diverse pharmacological targets, with injection of venom eliciting a range of physiological responses, including sedation, paralysis and sensory over...

journal_title：General and comparative endocrinology

authors： Robinson SD,Li Q,Bandyopadhyay PK,Gajewiak J,Yandell M,Papenfuss AT,Purcell AW,Norton RS,Safavi-Hemami H

更新日期：2017-04-01 00:00:00

abstract：:The occurrence of myoendocrine-like cells investing the ampullar draining region of Malpighian tubules and neighboring midgut and hindgut regions of the ant Formica polyctena is reported. These striated muscle cells show small electron-dense endocrine-like granules (130 +/- 0.95 nm) in addition to myofilaments and ord...

journal_title：General and comparative endocrinology

authors： Garayoa M,Villaro AC,Sesma P

更新日期：1994-07-01 00:00:00

abstract：:In the present study, four full-length cDNAs of somatostatin receptor (sstr) were cloned from the forebrain and pituitary of red-spotted grouper. The four full-length cDNAs were designated 2292, 1522, 1873 and 1789 bp and identified as sstr1, sstr2, sstr3, and sstr5 by BLAST analysis; the corresponding sizes of the op...

journal_title：General and comparative endocrinology

authors： Zhang Y,Tang Z,Lin W,Yuan X,Jia J,Sun C,Li W

更新日期：2019-04-01 00:00:00

abstract：:An androgen-binding activity has been identified in nuclear extracts of the testis of the frog, Rana esculenta. A single class of high affinity (Kd = 2.5 +/- 0.6 x 10(-9) M), low-capacity binding sites was found. The binding was specific for androgens; 17 beta-estradiol displaced [3H]testosterone with an ID50 of 0.1 m...

journal_title：General and comparative endocrinology

authors： Paolucci M,D'Antonio M,Pierantoni R

更新日期：1992-12-01 00:00:00

abstract：:Three experiments were performed to determine the role of juvenile hormone (JH) in worker reproduction in queenless colonies of honey bees. In Experiment 1, egg-laying workers had low hemolymph titers of JH, as did bees engaged in brood care, while foragers had significantly higher titers. Experiment 2 confirmed these...

journal_title：General and comparative endocrinology

authors： Robinson GE,Strambi C,Strambi A,Huang ZY

更新日期：1992-09-01 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：:An immunohistological analysis of the chromaffin cell system of the American eel revealed the presence of tyrosine hydroxylase (TH) and dopamine-beta-hydroxylase (DBH) in all cells. However, phenylethanolamine-N-methyltransferase (PNMT) was seen only in a fraction of the chromaffin cells. This suggests the presence of...

journal_title：General and comparative endocrinology

authors： Hathaway CB,Epple A

更新日期：1990-09-01 00:00:00

abstract：:Chickens have blood glucose concentrations that are twofold higher than those observed in mammals. Moreover, the insulin sensitivity seems to decrease with postnatal age in both broiler and layer chickens. However, little is known about the response of insulin on plasma glucose concentrations and mRNA abundance of hep...

journal_title：General and comparative endocrinology

authors： Franssens L,Lesuisse J,Wang Y,Willems E,Willemsen H,Koppenol A,Guo X,Buyse J,Decuypere E,Everaert N

更新日期：2016-06-01 00:00:00

abstract：:To examine the reproductive endocrinology of a large pleuronectiform fish, barfin flounder, Verasper moseri, a promising candidate for aquaculture and resource enhancement in northern Japan due to its high commercial value, three gonadotropin-releasing hormones (GnRHs) in the brain was identified by isolation of their...

journal_title：General and comparative endocrinology

authors： Amano M,Takahashi A,Yamanome T,Okubo K,Aida K,Yamamori K

更新日期：2002-05-01 00:00:00

abstract：:In lampreys, although gonadotropin (GTH) has not yet been isolated from the pituitary gland, the presence of GTH has been strongly suggested. To detect possible GTH in the sea lamprey (Petromyzon marinus) pituitary, two different cytochemical probes were tested: One was the use of antibodies to GTHs, and the other was...

journal_title：General and comparative endocrinology

authors： Nozaki M,Ominato K,Takahashi A,Kawauchi H,Sower SA

更新日期：1999-01-01 00:00:00

abstract：:Previous studies have provided evidence that D-Asp plays a role in steroid-mediated reproductive biology in amphibians, reptiles, birds and mammals. To examine the molecular involvement of D-Asp on steroidogenic pathway regulation, we analysed the expression of StAR, P450 aromatase and 5αRed2 mRNAs in Pelophylax escul...

journal_title：General and comparative endocrinology

authors： Burrone L,Raucci F,Di Fiore MM

更新日期：2012-01-01 00:00:00

abstract：:Birds use both the corticosterone stress response and immune system to meet physiological challenges during exposure to adverse climatic conditions. To assess the stress level and immune response of the Asian Great Bustard during conditions of severe winter weather, we measured fecal corticosterone (CORT) and Immunogl...

journal_title：General and comparative endocrinology

authors： Liu G,Hu X,Kessler AE,Gong M,Wang Y,Li H,Dong Y,Yang Y,Li L

更新日期：2018-05-15 00:00:00

abstract：:In in vivo experiments injection of dopamine (DA) or leucine enkephalin (L-Enk) produced hypoglycemia in intact red swamp crayfish, Procambarus clarkii. In contrast, neither compound had a significant effect on the circulating glucose concentration in eyestalkless individuals. With intact crayfish spiperone, a DA rece...

journal_title：General and comparative endocrinology

authors： Sarojini R,Nagabhushanam R,Fingerman M

更新日期：1995-01-01 00:00:00