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dc.contributor.authorConde-Sieira, Marta-
dc.contributor.authorAgulleiro Gozalbo, Maria Josep-
dc.contributor.authorAguilar, Ariel J.-
dc.contributor.authorMíguez, Jesús M.-
dc.contributor.authorCerdá-Reverter, José Miguel-
dc.contributor.authorSoengas, José L.-
dc.date.accessioned2012-01-23T13:16:16Z-
dc.date.available2012-01-23T13:16:16Z-
dc.date.issued2010-11-
dc.identifier.citationJournal of Experimental Biology 213(22): 3858-3865 (2010)es_ES
dc.identifier.issn0022-0949-
dc.identifier.urihttp://hdl.handle.net/10261/44598-
dc.description27 p, figuras, tablas y bibliografíaes_ES
dc.description.abstractTo assess mechanisms relating to food intake and glucosensing in fish, and their interaction with stress, we evaluated changes in the expression of orexigenic (NPY) and anorexigenic (POMC, CART and CRF) peptides in central glucosensing areas (hypothalamus and hindbrain) of rainbow trout subjected to normoglycaemic (control), hypoglycaemic (4 mg insulin kg(-1)) or hyperglycaemic (500 mg glucose kg(-1)) conditions for 6 h under normal stocking density (NSD; 10 kg fish mass m(-3)) or under stress conditions induced by high stocking density (HSD; 70 kg fish mass m(-3)). Hyperglycaemic NSD conditions resulted in decreased mRNA levels of NPY and increased levels of CART and POMC in the hypothalamus as well as increased mRNA levels of CART and CRF in the hindbrain compared with hypo- and normoglycaemic conditions. HSD conditions in normoglycaemic fish induced marked changes in the expression of all peptides assessed: mRNA levels of NPY and CRF increased and mRNA levels of POMC and CART decreased in the hypothalamus, whereas the expression of all four peptides (NPY, POMC, CART and CRF) decreased in the hindbrain. Furthermore, HSD conditions altered the response to changes in glycaemia of NPY and POMC expression in the hypothalamus and CART expression in the hypothalamus and the hindbrain. The results are discussed in the context of food intake regulation by glucosensor systems and their interaction with stress in fish.es_ES
dc.description.sponsorshipThis study was supported by research grants from Ministerio de Educación y Ciencia (AGL2007-65744-C03-01/ACU and AGL2007-65744-C03-03/ACU), Xunta de Galicia (Consolidación e estructuración de unidades de investigacion competitivas, INCITE09ENA310002ES), Universidade de Vigo (Contrato-Programa con grupos de investigación consolidados) M.C-S. and A.J.A. were recipients of FPI and MAEC-AECI predoctoral fellowships, respectively. MJA is recipient of a “Juan de la Cierva” research contract from the Spanish Science and Innovation Ministry.es_ES
dc.language.isoenges_ES
dc.publisherCompany of Biologistses_ES
dc.rightsopenAccesses_ES
dc.subjectTroutes_ES
dc.subjectGlucosensinges_ES
dc.subjectStresses_ES
dc.subjectHypothalamuses_ES
dc.subjectHindbraines_ES
dc.subjectCARTes_ES
dc.subjectPOMCes_ES
dc.subjectCRFes_ES
dc.subjectNPYes_ES
dc.titleEffect of different glycaemic conditions on gene expression of neuropeptides involved in control of food intake in rainbow trout; interaction with stresses_ES
dc.title.alternativeStress, glucosensing and neuropeptides in troutes_ES
dc.typeartículoes_ES
dc.identifier.doihttp://dx.doi.org/10.1242/jeb.048439-
dc.relation.publisherversionhttp://dx.doi.org/10.1242/jeb.048439es_ES
dc.identifier.e-issn1477-9145-
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