Assessment of the mercury-selenium antagonism in rainbow trout fish
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.18/8415 |
Resumo: | This study aims at the assessment of mercury (Hg)-selenium (Se) antagonism in fish. For this purpose, rainbow trout fish (Oncorhynchus mykiss) were exposed to methylmercury (MeHg) under controlled conditions, in the presence or absence of selenomethionine (SeMet) using an in-house prepared diet (enriched with MeHg and SeMet at 0.2 μg/g and 5.0 μg/g, respectively). The total duration of the exposure study was 3 months. Fish was sampled and analysed for total Se (SeT) and total mercury (HgT) content after 1, 2 and 3 months of exposure. Six feeding protocols were compared, depending on the exposure type: (i) no MeHg nor SeMet exposure (control group); (ii) exposure to SeMet solely; (iii) exposure to MeHg solely; (iv) exposure to both MeHg and SeMet; (v) exposure first to MeHg during 1 month and then to SeMet during 2 months and (vi), exposure to SeMet during 1 month and then to MeHg for 2 months. The levels of SeT and HgT in the fish (control and supplemented with MeHg/SeMet) were measured by inductively coupled plasma-mass spectrometry (ICPMS). Steadily (linear) bioaccumulation of MeHg in the fish muscle occurred when the fish were exposed individually to this species during the period. The bioaccumulation of MeHg is diminished when the fish are firstly exposed to SeMet and then to MeHg, hence indicating the MeHg detoxification due to SeMet supplementation. |
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Assessment of the mercury-selenium antagonism in rainbow trout fishMercury Selenium AntagonismRainbow Trout FishDietary ExposureICP-MSComposição dos AlimentosSegurança AlimentarThis study aims at the assessment of mercury (Hg)-selenium (Se) antagonism in fish. For this purpose, rainbow trout fish (Oncorhynchus mykiss) were exposed to methylmercury (MeHg) under controlled conditions, in the presence or absence of selenomethionine (SeMet) using an in-house prepared diet (enriched with MeHg and SeMet at 0.2 μg/g and 5.0 μg/g, respectively). The total duration of the exposure study was 3 months. Fish was sampled and analysed for total Se (SeT) and total mercury (HgT) content after 1, 2 and 3 months of exposure. Six feeding protocols were compared, depending on the exposure type: (i) no MeHg nor SeMet exposure (control group); (ii) exposure to SeMet solely; (iii) exposure to MeHg solely; (iv) exposure to both MeHg and SeMet; (v) exposure first to MeHg during 1 month and then to SeMet during 2 months and (vi), exposure to SeMet during 1 month and then to MeHg for 2 months. The levels of SeT and HgT in the fish (control and supplemented with MeHg/SeMet) were measured by inductively coupled plasma-mass spectrometry (ICPMS). Steadily (linear) bioaccumulation of MeHg in the fish muscle occurred when the fish were exposed individually to this species during the period. The bioaccumulation of MeHg is diminished when the fish are firstly exposed to SeMet and then to MeHg, hence indicating the MeHg detoxification due to SeMet supplementation.Highlights: Assessment of mercury (Hg)-selenium (Se) antagonism in fish through dietary exposure; MeHg saturation intake is reached in fish simultaneously exposed to MeHg and SeMet; This study confirms the detoxification effect of Se and Hg in rainbow trout fish.This project (MERSEL-FISH) was funded by ANSES and INSA.ElsevierRepositório Científico do Instituto Nacional de SaúdeRibeiro, M.Zephyr, N.Silva, J.A.L.Danion, M.Guérin, T.Castanheira, I.Leufroy, A.Jitaru, P.2023-01-10T14:31:19Z2022-012022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.18/8415engChemosphere. 2022 Jan;286(Pt 2):131749. doi: 10.1016/j.chemosphere.2021.131749. Epub 2021 Aug 3.0045-653510.1016/j.chemosphere.2021.131749info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-20T15:42:26Zoai:repositorio.insa.pt:10400.18/8415Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:42:51.445949Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
title |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
spellingShingle |
Assessment of the mercury-selenium antagonism in rainbow trout fish Ribeiro, M. Mercury Selenium Antagonism Rainbow Trout Fish Dietary Exposure ICP-MS Composição dos Alimentos Segurança Alimentar |
title_short |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
title_full |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
title_fullStr |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
title_full_unstemmed |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
title_sort |
Assessment of the mercury-selenium antagonism in rainbow trout fish |
author |
Ribeiro, M. |
author_facet |
Ribeiro, M. Zephyr, N. Silva, J.A.L. Danion, M. Guérin, T. Castanheira, I. Leufroy, A. Jitaru, P. |
author_role |
author |
author2 |
Zephyr, N. Silva, J.A.L. Danion, M. Guérin, T. Castanheira, I. Leufroy, A. Jitaru, P. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Nacional de Saúde |
dc.contributor.author.fl_str_mv |
Ribeiro, M. Zephyr, N. Silva, J.A.L. Danion, M. Guérin, T. Castanheira, I. Leufroy, A. Jitaru, P. |
dc.subject.por.fl_str_mv |
Mercury Selenium Antagonism Rainbow Trout Fish Dietary Exposure ICP-MS Composição dos Alimentos Segurança Alimentar |
topic |
Mercury Selenium Antagonism Rainbow Trout Fish Dietary Exposure ICP-MS Composição dos Alimentos Segurança Alimentar |
description |
This study aims at the assessment of mercury (Hg)-selenium (Se) antagonism in fish. For this purpose, rainbow trout fish (Oncorhynchus mykiss) were exposed to methylmercury (MeHg) under controlled conditions, in the presence or absence of selenomethionine (SeMet) using an in-house prepared diet (enriched with MeHg and SeMet at 0.2 μg/g and 5.0 μg/g, respectively). The total duration of the exposure study was 3 months. Fish was sampled and analysed for total Se (SeT) and total mercury (HgT) content after 1, 2 and 3 months of exposure. Six feeding protocols were compared, depending on the exposure type: (i) no MeHg nor SeMet exposure (control group); (ii) exposure to SeMet solely; (iii) exposure to MeHg solely; (iv) exposure to both MeHg and SeMet; (v) exposure first to MeHg during 1 month and then to SeMet during 2 months and (vi), exposure to SeMet during 1 month and then to MeHg for 2 months. The levels of SeT and HgT in the fish (control and supplemented with MeHg/SeMet) were measured by inductively coupled plasma-mass spectrometry (ICPMS). Steadily (linear) bioaccumulation of MeHg in the fish muscle occurred when the fish were exposed individually to this species during the period. The bioaccumulation of MeHg is diminished when the fish are firstly exposed to SeMet and then to MeHg, hence indicating the MeHg detoxification due to SeMet supplementation. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01 2022-01-01T00:00:00Z 2023-01-10T14:31:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.18/8415 |
url |
http://hdl.handle.net/10400.18/8415 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chemosphere. 2022 Jan;286(Pt 2):131749. doi: 10.1016/j.chemosphere.2021.131749. Epub 2021 Aug 3. 0045-6535 10.1016/j.chemosphere.2021.131749 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132174726725632 |