Role of melatonin on the regulation of ovarian function: new findings in Danio rerio

Abstract

Event Abstract Back to Event Role of melatonin on the regulation of ovarian function: new findings in Danio rerio Oliana Carnevali1*, Giorgia Gioacchini1, Francesca Maradonna1, Ike Olivotto1 and Beatrice Migliarini1 1 Polytechnic University of Marche, Department of Marine Sciences, Italy Melatonin is involved in a number of activities including reproduction acting on hypothalamus , pituitary and gonads . The mechanism by which melatonin acts on the reproductive axis is still unknown although this hormone does not appear to have a direct influence on GnRH neurons. The nature of relationship between pineal melatonin and reproductive physiology remains controversial, in mammals the administration of melatonin may induce or inhibit reproduction depending on the species reproductive strategy: melatonin inhibits long day summer phenotype and induces a short day winter phenotype reproduction. In these latter species, melatonin is referred to as being progonadotrophic .Conflicting conclusions on the role of melatonin in the neuroendocrine system has been also found in teleost; administration of melatonin decreases LH β and FSHβ secretion in the ell and inhibits reproduction in catfish, trout, etc…while LH β is induced in kroacker, sea bass and carp. Recently, the antioxidant activity of melatonin have been found in the mammalian oocyte evidencing the beneficial effects of this hormone on reproductive physiology by improving oocyte quality. In zebrafish, we have demonstrated a clear positive role of melatonin in follicle growth and maturation. The large variability of the impact of melatonin on brain, pituitary and on gonadal factors observed among vertebrates will be discussed. Keywords: comparative endocrinology Conference: 25th Conference of the European Comparative Endocrinologists, Pécs, Hungary, 31 Aug - 4 Sep, 2010. Presentation Type: Conference Presentation Topic: Comparative endocrinology Citation: Carnevali O, Gioacchini G, Maradonna F, Olivotto I and Migliarini B (2010). Role of melatonin on the regulation of ovarian function: new findings in Danio rerio. Front. Endocrinol. Conference Abstract: 25th Conference of the European Comparative Endocrinologists. doi: 10.3389/conf.fendo.2010.01.00011 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 26 Aug 2010; Published Online: 29 Aug 2010. * Correspondence: Dr. Oliana Carnevali, Polytechnic University of Marche, Department of Marine Sciences, Ancona, Italy, o.carnevali@univpm.it Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Oliana Carnevali Giorgia Gioacchini Francesca Maradonna Ike Olivotto Beatrice Migliarini Google Oliana Carnevali Giorgia Gioacchini Francesca Maradonna Ike Olivotto Beatrice Migliarini Google Scholar Oliana Carnevali Giorgia Gioacchini Francesca Maradonna Ike Olivotto Beatrice Migliarini PubMed Oliana Carnevali Giorgia Gioacchini Francesca Maradonna Ike Olivotto Beatrice Migliarini Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.