Showing papers in "General and Comparative Endocrinology in 2015"

TL;DR: How diverse epigenetic changes might be a unifying mechanism of how BPA and EE2 disrupt several processes across species is considered, as these effects have been the best characterized across taxa.

TL;DR: The aim of this review is to compare the effects of plasticizers in animals, with a focus on aquatic species, and identified three main chains of events that occur in animals exposed to BPA and phthalates.

TL;DR: Functional aspects of the spatio-temporal production of eight different insulin-like peptides that are thought to act on one known receptor (dInR) in Drosophila are discussed.

TL;DR: There is evidence that an Amh-type II receptor is involved in germ cell regulation and in brain and pituitary, at least in some teleosts, indicating additional roles of Amh effects in the brain-pituitary-gonadal axis.

TL;DR: A hypothetical model of oocyte growth is proposed based on recent advances in knowledge of fish yolk formation, and these are mainly composed of neutral lipids that may originate from maternal plasma lipoproteins.

TL;DR: It is still remains unclear that PBDE-induced reproductive impairments are caused by direct effects on hypothalamic-pituitary-gonadal (HPG) functioning or by indirect action through cross-talk between the two systems.

TL;DR: The recently identified crustacean female sex hormone was also found and in the crayfish appears to be not only expressed in the eyestalk, but in the ovary as well (though not in the testis), and CNMamide, calcitonin, CCRFamide, natalisin, trissin and relaxin appear to be new crustaceans neuropeptides.

TL;DR: The results of regulatory peptide predictions for Trichoplax adhaerens provide the foundation for the molecular, biochemical, physiological, and behavioral studies of one the most primitive animal coordination systems, and give unique insight into the origins and early evolution of the nervous system.

TL;DR: The hormonal pathway genes of a new decapod model, the shrimp Neocaridina denticulata, are described, providing a vital resource for further research into development, reproduction, endocrinology and evolution of crustaceans, and arthropods in general.

TL;DR: The aim of this mini-review is to persuade those working with cichlids to consider the involvement of chemical communication, and those working in chemical communication to consider using cichLids.

TL;DR: Fasting increased corticosterone and decreased testosterone in circulation, indicating that the testes can integrate and respond to cues of stress directly, and local inhibition of testosterone synthesis may allow for rapid and reversible changes in physiology and behavior when conditions are inappropriate for breeding.

TL;DR: Cloned the full-length cDNA of IAGBP from the oriental river prawn Macrobrachium nipponense and investigated the transcriptional patterns of Mn-IAGBP and the M. nIPPonense IAG gene (Mn-IAG) at different developmental stages and in different tissues, demonstrating the involvement of the IAGB prawn gene in IAG signaling in M.Nipp onense.

TL;DR: The broad expression of Sv-ILP1 strongly suggests that ILPs have a role beyond that of masculinisation in decapods, and the function of these novel peptides may have application in enhancing aquaculture practices in the commercially important decapod species.

TL;DR: The results show that exogenous AVT causes a stress response, as evidenced by reduced behavioral activity and increased circulating levels of cortisol in established dominant and subordinate males.

TL;DR: GH and PRL are not just endocrine hormones, as they have autocrine and/or paracrine roles in health and disease.

TL;DR: The GnIH/GnIHR signal in protogynous orange-spotted grouper might be involved in the regulation of the reproductive function of sex differentiation, gonadal development and sex reversal via regulating the synthesis of both GnRH and GtH.

TL;DR: The results indicated that the feeding behavior of blunt snout bream was regulated by the potential correlative actions of ghrelin, NPY and CCK, which contributed to the defense against starvation.

TL;DR: Limited evidence that is available on the roles of encephalic or deep brain photoreceptors in the regulation of circadian and seasonal physiology is reviewed, with particular emphasis placed on the DBPs.

TL;DR: Data show that the regulation of leptin in rainbow trout adipocytes by hormones and nutrients seems to be on secretion, rather than at the transcriptional level, which is in agreement with the in vivo findings.

TL;DR: Compared the effects of increasing doses of T on singing and song control nuclei volumes in adult male and female American Singer canaries exposed to identical environmental conditions, testosterone was not equally effective in increasing singing activity in both males and females.

TL;DR: The results indicate that absolute HCC varied substantially between certain body regions, but a factor analysis revealed that these HCC differences were mainly attributable to one common source of variance.

TL;DR: This article will review current knowledge on CXCR in fish, that represent three distinct vertebrate groups: Agnatha (jawless fishes), Chondrichthyes (cartilaginous fishes) and Osteichthye (bony fishes).

TL;DR: Results suggest that developmental exposure to BPA disrupts sexual differentiation in painted turtles, and further examination is necessary to determine the underlying mechanisms of sex reversal in reptiles and how these translate to EDC exposure in wild populations.

TL;DR: The findings reveal that immune outcomes of stress are not easily predicted from the average amount or duration of CORT elevation, but that intensity plays an important role, and the need to quantify more than just the duration of a stressor if the authors are to understand and manage the ecological consequences of stress.

TL;DR: The effects of organochlorine and organophosphate pesticides are highlighted in comparison with sex-steroid analogue-induced changes on HHG axis during gametogenesis in few teleost fish models to imply the extent of sexual plasticity in teleosts compared to other vertebrates.

TL;DR: A new approach is developed employing artificial neural networks and supervised machine learning with other novel bioinformatics procedures to discover a previously unknown level of ovarian transcriptome function at which minute changes in expression of a few hundred genes is highly predictive of egg quality.

TL;DR: The results provide molecular and functional evidences to support potential anorectic and metabolic roles for endogenous nesfatin-1 in zebrafish and the first report on NUCB2B characterization in vertebrates.

TL;DR: It was concluded that human butyrylcholinesterase (BChE) is physiologically relevant for the hydrolysis of ghrelin.

TL;DR: This review will address the latest technologies that use transgenic approaches to eliminate germ cells, resulting in the production of sterile fish, and the development of egg/embryo immersion methodologies to deliver and screen compounds that can be used to eliminate primordial germ cells and produce sterile fish.

TL;DR: The L. hesperus peptidome is by far the largest thus far published for any member of the Chelicerata and serves as a reference for future neuropeptide discovery in the Araneae and a foundation for future studies of peptidergic control in L. Hesperus and other spiders.