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Immune activation is inversely related to, but does not cause variation in androgen levels in a cichlid fish species

2012-04-10Journal article Restricted access
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dc.contributor.authorRos, Albert
dc.contributor.authorOliveira, Rui Filipe
dc.contributor.authorDijkstra, Peter D.
dc.contributor.authorGroothuis, Ton G.G.
dc.date.accessioned2020-07-16T18:06:40Z
dc.date.available2020-07-16T18:06:40Z
dc.date.issued2012-04-10
dc.description.abstractStudies on birds and mammals indicate that sexual traits may signal superior health because active immunity, like inflammatory responses to infections, is suppressive to the production of androgens that facilitate the expression of these traits. Here we test this possible pathway for honest signaling in a teleost species, Sarotherodon galilaeus, by activating the immune system with sheep red blood cells (SRBC), which is a non-pathogenic T- and B-cell stimulating antigen. Two weeks after the start of treatment adult males injected with SRBC showed a significant increase in antibody production in comparison with control males. The variation in specific antibody production was negatively related with variation in both testosterone and 11-ketotestosterone levels. This suggests that investment in immune protection is incompatible with increased activity of the hypothalamic-pituitary-gonadal axis. However, opposite to our expectation no difference in androgen levels was found between placebo and SRBC treatment suggesting that immune activation did not cause androgen suppression in our studied species.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRos, A. F. H., Oliveira, R. F., Dijkstra, P. D., & Groothuis, T. G. G. (2012). Immune activation is inversely related to, but does not cause variation in androgen levels in a cichlid fish species. Fish & Shellfish Immunology, 33(1), 130-133. https://doi.org/10.1016/j.fsi.2012.03.006pt_PT
dc.identifier.doi10.1016/j.fsi.2012.03.006pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.12/7711
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.fsi.2012.03.006pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectAdjuvantspt_PT
dc.subjectAndrogenspt_PT
dc.subjectAnimalspt_PT
dc.subjectAntibodiespt_PT
dc.subjectCichlidspt_PT
dc.subjectImmune systempt_PT
dc.subjectMalept_PT
dc.subjectTestosteronept_PT
dc.subjectImmunologic
dc.titleImmune activation is inversely related to, but does not cause variation in androgen levels in a cichlid fish speciespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage133pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage130pt_PT
oaire.citation.titleFish & Shellfish Immunologypt_PT
oaire.citation.volume33pt_PT
person.familyNameRos
person.familyNameOliveira
person.givenNameAlbert
person.givenNameRui
person.identifier.ciencia-id611C-50AD-6CE7
person.identifier.orcid0000-0003-3241-9722
person.identifier.orcid0000-0003-1528-618X
person.identifier.ridI-7726-2015
person.identifier.ridA-3581-2013
person.identifier.scopus-author-id7005145768
person.identifier.scopus-author-id35561080400
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationac151df3-2b8c-4673-8dc6-637bf6586757
relation.isAuthorOfPublication52f01205-dce9-433b-85c5-6390488b1eee
relation.isAuthorOfPublication.latestForDiscoveryac151df3-2b8c-4673-8dc6-637bf6586757

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