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<title lang=en>Expression of kisspeptins in the brain and pituitary of the European sea bass (Dicentrarchus labrax).</title>
<creator>Escobar, Sebastián</creator>
<creator>Felip, Alicia</creator>
<creator>Gueguen, Marie-Madeleine</creator>
<creator>Zanuy, Silvia</creator>
<creator>Carrillo, Manuel</creator>
<creator>Kah, Olivier</creator>
<creator>Servili, Arianna</creator>
<contributor>Instituto de Acuicultura de Torre de la Sal ; Consejo Superior de Investigaciones Científicas [Spain] (CSIC)</contributor>
<contributor>Institut de recherche, santé, environnement et travail [Rennes] (Irset) ; Université d'Angers (UA) - Université des Antilles et de la Guyane (UAG) - Université de Rennes 1 (UR1) - École des Hautes Études en Santé Publique [EHESP] (EHESP) - Institut National de la Santé et de la Recherche Médicale (INSERM) - Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )</contributor>
<description>International audience</description>
<source>ISSN: 0092-7317</source>
<source>EISSN: 1550-7130</source>
<source>Journal of Comparative Neurology</source>
<publisher>John Wiley & Sons</publisher>
<identifier>hal-00877326</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00877326</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00877326</source>
<source>Journal of Comparative Neurology, John Wiley & Sons, 2013, 521 (4), pp.933-48. 〈10.1002/cne.23211〉</source>
<identifier>PUBMED : 22886357</identifier>
<relation>info:eu-repo/semantics/altIdentifier/pmid/22886357</relation>
<identifier>DOI : 10.1002/cne.23211</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1002/cne.23211</relation>
<language>en</language>
<subject lang=en>Indexing terms: kisspeptin</subject>
<subject lang=en>kiss1</subject>
<subject lang=en>kiss2</subject>
<subject lang=en>kiss1R</subject>
<subject lang=en>GnRH</subject>
<subject lang=en>estrogen receptors</subject>
<subject lang=en>FSH</subject>
<subject lang=en>LH</subject>
<subject lang=en>pituitary</subject>
<subject lang=en>sea bass</subject>
<subject lang=en>teleost fish</subject>
<subject lang=en>puberty</subject>
<subject>[SDV.NEU.NB] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Kisspeptins are now considered key players in the neuroendocrine control of puberty and reproduction, at least in mammals. Most teleosts have two kiss genes, kiss1 and kiss2, but their sites of expression are still poorly documented. As a first step in investigating the role of kisspeptins in the European sea bass, a perciform fish, we studied the distribution of kiss1 and kiss2-expressing cells in the brain of males and females undergoing their first sexual maturation. Animals were examined at early and late in the reproductive season. We also examined the putative expression of estrogen receptors in kiss-expressing cells and, finally, we investigated whether kisspeptins are expressed in the pituitary gland. We show that kiss1-expressing cells were consistently detected in the habenula and, in mature males and females, in the rostral mediobasal hypothalamus. In both sexes, kiss2-expressing cells were consistently detected at the level of the preoptic area, but the main kiss2 mRNA-positive population was observed in the dorsal hypothalamus, above and under the lateral recess. No obvious sexual differences in kiss1 and kiss2 mRNA expression were detected. Additional studies based on confocal imaging clearly showed that most kiss1 mRNA-containing cells of the mediobasal hypothalamus strongly express ERα and slightly express ERβ2. At the pituitary level, both sexes exhibited kiss1 mRNA expression in most FSHβ-positive cells and never in LHβ-positive cells.</description>
<date>2013-03-01</date>
</dc>
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