...Karine Rousseau; Fabrice Girardot; Caroline Parmentier; Hervé Tostivint The caudal neurosecretory system (CNSS) is a neuroendocrine complex, whose existence is specific to fishes. In teleosts, it consists of neurosecretory cells (Dahlgren cells) whose fibers are associated with a neurohemal...

... to in the content or advertisements. cAMP Adenylate cyclase Protein kinase A Growth hormone Dopamine D1 receptors Pituitary cells Goldfish Receptors Fish Pituitary Second Messengers Neuroendocrinology 1994;60:410-417 Anderson On-Lam Wonga Glen van der Kraakb John Philip Changa Department...

... oscillations. Thermoperiod is not as powerful as photoperiod in entraining the circadian clocks which drive the melatonin-producing rhythm. We provide strong support for the hypothesis that melatonin might be involved in mediating the effects of the fish pineal organ on thermodependent physiological...

...Donna Onstott; Robert Elde Urotensin I (UI), one of the biologically active peptides isolated from the caudal spinal cord and urophysis of fish, exhibits a strong sequence homology with mammalian corticotropin-releasing factor (CRF). We have applied an antiserum to ovine CRF that cross-reacts...

... Gonadotropins Thyrotropin Growth hormone Gonadal steroids Fish Metamorphosis is a critical event in the biological cycle of many animals. The transition from larva to adult involves a number of morphological, physiological and behavioral modifications, which permit adaptation to a new environment...

... in the male and folliculogenesis in the female. In the female, it is also involved in the conversion of androgens to estrogens. LH controls the synthesis of androgens as well as gamete release (spermiation in males and ovulation in females). The duality of gonadotropins in the teleost fish has also been...

...). Five clones were selected for sequencing. Dynorphins Enkephalins Fish Molecular neuroendocrinology Morphinomimetic peptides α-Neoendorphin A unifying feature of enkephalinergic circuits in the central nervous system (CNS) of mammals is the co-localization of the pentapeptides, Met...

...(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Aromatase Gonadal steroids Gonadal steroid receptors Serotonin Sex differentiation Molecular neuroendocrinology Fish...

...Nicholas J. Bernier; Richard E. Peter Fish urotensin I (UI), a member of the corticotropin-releasing hormone (CRH) family of peptides, is a potent inhibitor of food intake in mammals, yet the role of UI in the control of food intake in fish is not known. Therefore, to determine the acute effects...

...-related inhibition of GTH II secretion in fish with fully recrudesced gonads. Similar opposite changes in GTH II levels were observed when croaker with regressed and fully recrudesced gonads were injected with the GABA transaminase inhibitor, γ-vinyl GABA (10 and 100 µg/g). This suggests an involvement...

...Evaristo L. Mañanos; Isabelle Anglade; Jaroslaw Chyb; Christian Saligaut; Bernard Breton; Olivier Kah The potential role of the neurotransmitter γ-aminobutyric acid (GABA) in the control of the secretion of the two pituitary fish gonadotropins (GTH-1 and GTH-2) was investigated in male and female...