Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1171573
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dc.contributor.authorFERREIRA, N. DOS S.eng
dc.contributor.authorCOSTA, P. H. DAeng
dc.contributor.authorSÁ, I. P. DEeng
dc.contributor.authorBERNARDO, V. S.eng
dc.contributor.authorTORRES, F. F.eng
dc.contributor.authorFIGUEIREDO, J. G.eng
dc.contributor.authorAMARAL, C. D. B. DOeng
dc.contributor.authorNOGUEIRA, A. R. de A.eng
dc.contributor.authorSILVA, D. G. H. DAeng
dc.contributor.authorGONZALEZ, M. H.eng
dc.date.accessioned2025-01-15T18:47:08Z-
dc.date.available2025-01-15T18:47:08Z-
dc.date.created2025-01-15
dc.date.issued2024
dc.identifier.citationChemosphere, v. 359, July 2024, 142289.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1171573-
dc.descriptionThe speciation of arsenic in fish has been widely investigated, but bioaccumulation and biotransformation of inorganic As in different tissues of Nile tilapia (Oreochromis niloticus) are not fully understood. The present study aimed to investigate the bioaccumulation of As in Nile tilapia, as well as to evaluate the distribution of the main arsenic species (As(III), As(V), MMA, DMA, and AsB) in liver, stomach, gill, and muscle, after controlled exposures to As(III) and As(V) at concentrations of 5.0 and 10.0 mg L−1 during periods of 1 and 7 days. Total As was determined by inductively coupled plasma mass spectroscopy (ICP-MS). For both exposures (As(III) and As(V)), the total As levels after 7-day exposure were highest in the liver and lowest in the muscle. Overall, the Nile tilapia exposed to As(III) showed higher tissue levels of As after the treatments, compared to As(V) exposure. Speciation of arsenic present in the tissues employed liquid chromatography coupled to ICP-MS (LC-ICP-MS), revealing that the biotransformation of As included As(V) reduction to As(III), methylation to monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA), and subsequent conversion to nontoxic arsenobetaine (AsB), which was the predominant arsenic form. Finally, the interactions and antagonistic effects of selenium in the bioaccumulation processes were tested by the combined exposure to As(III), the most toxic species of As, together with tetravalent selenium (Se(IV)). The results indicated a 4–6 times reduction of arsenic toxicity in the tilapia.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectSpeciation
dc.subjectArsenic species
dc.subjectSelenium antagonism
dc.subjectLC ICP MS
dc.subjectICP MS
dc.titleArsenic bioaccumulation and biotransformation in different tissues of Nile tilapia (Oreochromis niloticus): a comparative study between As(III) and As(V) exposure and evaluation of antagonistic effects of selenium.
dc.typeArtigo de periódico
dc.subject.thesagroTilápia
dc.subject.nalthesaurusFish
riaa.ainfo.id1171573
riaa.ainfo.lastupdate2025-01-15
dc.identifier.doihttps://doi.org/10.1016/j.chemosphere.2024.142289
dc.contributor.institutionNATHALIA DOS SANTOS FERREIRA, UNIVERSIDADE ESTADUAL PAULISTAeng
dc.contributor.institutionPEDRO HENRIQUE DA COSTA, UNIVERSIDADE ESTADUAL PAULISTAeng
dc.contributor.institutionÍVERO PITA DE SÁeng
dc.contributor.institutionVICTORIA SIMÕES BERNARDO, UNIVERSIDADE ESTADUAL PAULISTAeng
dc.contributor.institutionFLAVIENE FELIX TORRES, UNIVERSIDADE ESTADUAL PAULISTAeng
dc.contributor.institutionJOZI GODOY FIGUEIREDO, UNIFASIPEeng
dc.contributor.institutionCLARICE DIAS BRITTO DO AMARAL, UNIVERSIDADE FEDERAL DO PARANÁeng
dc.contributor.institutionANA RITA DE ARAUJO NOGUEIRA, CPPSEeng
dc.contributor.institutionDANILO GRÜNIG HUMBERTO DA SILVA, UNIVERSIDADE ESTADUAL PAULISTAeng
dc.contributor.institutionMARIO HENRIQUE GONZALEZ, UNIVERSIDADE ESTADUAL PAULISTA.eng
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