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Characterization of the peripheral thyroid system of gilthead seabream acclimated to different ambient salinities

2017-01Journal article Open access
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dc.contributor.authorRuiz-Jarabo, I.
dc.contributor.authorKlaren, P. H. M.
dc.contributor.authorLouro, Bruno
dc.contributor.authorMartos-Sitcha, J. A.
dc.contributor.authorPinto, P. I.
dc.contributor.authorVargas-Chacoff, L.
dc.contributor.authorFlik, G.
dc.contributor.authorMartinez-Rodriguez, G.
dc.contributor.authorPower, Deborah
dc.contributor.authorMancera, J. M.
dc.contributor.authorArjona, F. J.
dc.date.accessioned2019-11-20T15:08:06Z
dc.date.available2019-11-20T15:08:06Z
dc.date.issued2017-01
dc.description.abstractThyroid hormones are involved in many developmental and physiological processes, including osmoregulation. The regulation of the thyroid system by environmental salinity in the euryhaline gilthead seabream (Sparus aurata) is still poorly characterized. To this end seabreams were exposed to four different environmental salinities (5, 15, 40 and 55 ppt) for 14 days, and plasma free thyroid hormones (fT3, ff4), outer ring deiodination and Na+/K+ -ATPase activities in gills and kidney, as well as other osmoregulatory and metabolic parameters were measured. Low salinity conditions (5 ppt) elicited a significant increase in fT3 (29%) and ff4 (184%) plasma concentrations compared to control animals (acclimated to 40 ppt, natural salinity conditions in the Bay of Cadiz, Spain), while the amount of pituitary thyroid stimulating hormone subunit 13 (tshb) transcript abundance remained unchanged. In addition, plasma fT4 levels were positively correlated to renal and branchial deiodinase type 2 (dio2) mRNA expression. Gill and kidney T4-outer ring deiodination activities correlated positively with dio2 mRNA expression and the highest values were observed in fish acclimated to low salinities (5 and 15 ppt). The high salinity (55 ppt) exposure caused a significant increase in tshb expression (65%), but deiodinase gene expression (diol and dio2) and activity did not change and were similar to controls (40 ppt). In conclusion, acclimation to different salinities led to changes in the peripheral regulation of thyroid hormone metabolism in seabream. Therefore, thyroid hormones are involved in the regulation of ion transport and osmoregulatory physiology in this species. The conclusions derived from this study may also allow aquaculturists to modulate thyroid metabolism in seabream by adjusting culture salinity. (C) 2016 Elsevier Inc. All rights reserved.
dc.description.sponsorshipSocrates/Erasmus Grant from the European Union
dc.description.sponsorshipUniversity of Cadiz [UCA 2009-074-FPI]
dc.description.sponsorshipMinisterio de Education y Ciencia, Spain [AGL2007-61211/ACU]
dc.description.sponsorshipFEDER, Spain [AGL2007-61211/ACU]
dc.description.sponsorshipProyecto de Excelencia (Junta de Andalucia) [PO7-RNM-02843]
dc.description.sponsorshipScience Foundation (FCT) of Portugal [SFRH/BPD/89889/2012, SFRH/BPD/84033/2012]
dc.description.versioninfo:eu-repo/semantics/acceptedVersion
dc.identifier.doi10.1016/j.cbpa.2016.08.013
dc.identifier.issn1095-6433
dc.identifier.issn1531-4332
dc.identifier.urihttp://hdl.handle.net/10400.1/13364
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationTRANSCRIPTOMIC RESPONSES TO THERMAL AND OSMOREGULATORY CHALLENGES OF ANTARCTIC NOTOTHENIOID FISH: AN INSIGHT INTO RESPONSES TO GLOBAL CHANGE AND GENOME EVOLUTION
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBream Sparus-Aurata
dc.subjectSea bream
dc.subjectEnergy-metabolism
dc.subjectThyrotropin-beta
dc.subjectRainbow-trout
dc.subjectDeiodinase
dc.subjectHormones
dc.subjectGrowth
dc.subjectLiver
dc.subjectFish
dc.titleCharacterization of the peripheral thyroid system of gilthead seabream acclimated to different ambient salinities
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTRANSCRIPTOMIC RESPONSES TO THERMAL AND OSMOREGULATORY CHALLENGES OF ANTARCTIC NOTOTHENIOID FISH: AN INSIGHT INTO RESPONSES TO GLOBAL CHANGE AND GENOME EVOLUTION
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F89889%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F84033%2F2012/PT
oaire.citation.endPage31
oaire.citation.startPage24
oaire.citation.titleComparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology
oaire.citation.volume203
oaire.fundingStreamSFRH
person.familyNameRuiz-Jarabo
person.familyNameLouro
person.familyNamePinto
person.familyNamePower
person.givenNameIgnacio
person.givenNameBruno
person.givenNamePatricia IS
person.givenNameDeborah Mary
person.identifier643457
person.identifier.ciencia-idE51D-5CCB-B1C6
person.identifier.ciencia-id891A-8A44-3CAE
person.identifier.orcid0000-0002-3918-0921
person.identifier.orcid0000-0001-8164-581X
person.identifier.orcid0000-0001-7854-3898
person.identifier.orcid0000-0003-1366-0246
person.identifier.ridM-3817-2013
person.identifier.scopus-author-id16028940200
person.identifier.scopus-author-id10240774300
person.identifier.scopus-author-id7101806760
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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