Rat liver antioxidant response to iron and copper overloads

Autores
Musacco Sebio, Rosario Natalia; Saporito Magriñá, Christian Martín; Semprine, Jimena Vanina; Torti, Horacio Emilio; Ferrarotti, Nidia Fatima; Castro-Parodi, Mauricio Omar; Damiano, Alicia Ermelinda; Boveris, Alberto Antonio; Repetto, Marisa Gabriela
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The rat liver antioxidant response to Fe and Cu overloads (0–60 mg/kg) was studied. Dose- and time-responses were determined and summarized by t1/2 and C50, the time and the liver metal content for half maximal oxidative responses. Liver GSH (reduced glutathione) and GSSG (glutathione disulfide) were determined. The GSH content and the GSH/GSSG ratio markedly decreased after Fe (58–66%) and Cu (79–81%) loads, with t1/2 of 4.0 and 2.0 h. The C50 were in a similar range for all the indicators (110–124 μg Fe/g and 40–50 μg Cu/g) and suggest a unique free-radical mediated process. Hydrophilic antioxidants markedly decreased after Fe and Cu (60–75%; t1/2: 4.5 and 4.0 h). Lipophilic antioxidants were also decreased (30–92%; t1/2: 7.0 and 5.5 h) after Fe and Cu. Superoxide dismutase (SOD) activities (Cu,Zn-SOD and Mn-SOD) and protein expression were adaptively increased after metal overloads (Cu,Zn-SOD: t1/2: 8–8.5 h and Mn-SOD: t1/2: 8.5–8.0 h). Catalase activity was increased after Fe (65%; t1/2: 8.5 h) and decreased after Cu (26%; t1/2: 8.0 h), whereas catalase expression was increased after Fe and decreased after Cu overloads. Glutathione peroxidase activity decreased after metal loads by 22–39% with a t1/2 of 4.5 h and with unchanged protein expression. GSH is the main and fastest responder antioxidant in Fe and Cu overloads. The results indicate that thiol (SH) content and antioxidant enzyme activities are central to the antioxidant defense in the oxidative stress and damage after Fe and Cu overloads.
Fil: Musacco Sebio, Rosario Natalia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Saporito Magriñá, Christian Martín. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Semprine, Jimena Vanina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Torti, Horacio Emilio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Ferrarotti, Nidia Fatima. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Castro-Parodi, Mauricio Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Damiano, Alicia Ermelinda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Boveris, Alberto Antonio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Repetto, Marisa Gabriela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Materia
Antioxidants
Liver Chemiluminescence
Copper
Glutathione
Iron
Oxidative Damage
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/30521
Acceder
id CONICETDig_ffea33a56bffdab6c0475b2d5cc08684
oai_identifier_str oai:ri.conicet.gov.ar:11336/30521
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Rat liver antioxidant response to iron and copper overloadsMusacco Sebio, Rosario NataliaSaporito Magriñá, Christian MartínSemprine, Jimena VaninaTorti, Horacio EmilioFerrarotti, Nidia FatimaCastro-Parodi, Mauricio OmarDamiano, Alicia ErmelindaBoveris, Alberto AntonioRepetto, Marisa GabrielaAntioxidantsLiver ChemiluminescenceCopperGlutathioneIronOxidative Damagehttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3The rat liver antioxidant response to Fe and Cu overloads (0–60 mg/kg) was studied. Dose- and time-responses were determined and summarized by t1/2 and C50, the time and the liver metal content for half maximal oxidative responses. Liver GSH (reduced glutathione) and GSSG (glutathione disulfide) were determined. The GSH content and the GSH/GSSG ratio markedly decreased after Fe (58–66%) and Cu (79–81%) loads, with t1/2 of 4.0 and 2.0 h. The C50 were in a similar range for all the indicators (110–124 μg Fe/g and 40–50 μg Cu/g) and suggest a unique free-radical mediated process. Hydrophilic antioxidants markedly decreased after Fe and Cu (60–75%; t1/2: 4.5 and 4.0 h). Lipophilic antioxidants were also decreased (30–92%; t1/2: 7.0 and 5.5 h) after Fe and Cu. Superoxide dismutase (SOD) activities (Cu,Zn-SOD and Mn-SOD) and protein expression were adaptively increased after metal overloads (Cu,Zn-SOD: t1/2: 8–8.5 h and Mn-SOD: t1/2: 8.5–8.0 h). Catalase activity was increased after Fe (65%; t1/2: 8.5 h) and decreased after Cu (26%; t1/2: 8.0 h), whereas catalase expression was increased after Fe and decreased after Cu overloads. Glutathione peroxidase activity decreased after metal loads by 22–39% with a t1/2 of 4.5 h and with unchanged protein expression. GSH is the main and fastest responder antioxidant in Fe and Cu overloads. The results indicate that thiol (SH) content and antioxidant enzyme activities are central to the antioxidant defense in the oxidative stress and damage after Fe and Cu overloads.Fil: Musacco Sebio, Rosario Natalia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Saporito Magriñá, Christian Martín. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Semprine, Jimena Vanina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Torti, Horacio Emilio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Ferrarotti, Nidia Fatima. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Castro-Parodi, Mauricio Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Damiano, Alicia Ermelinda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Boveris, Alberto Antonio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Repetto, Marisa Gabriela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaElsevier2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30521Musacco Sebio, Rosario Natalia; Saporito Magriñá, Christian Martín; Semprine, Jimena Vanina; Torti, Horacio Emilio; Ferrarotti, Nidia Fatima; et al.; Rat liver antioxidant response to iron and copper overloads; Elsevier; Journal of Inorganic Biochemistry; 137; 4-2014; 94-1000162-0134CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi//10.1016/j.jinorgbio.2014.04.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:15:57Zoai:ri.conicet.gov.ar:11336/30521instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:15:58.239CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Rat liver antioxidant response to iron and copper overloads
title Rat liver antioxidant response to iron and copper overloads
spellingShingle Rat liver antioxidant response to iron and copper overloads
Musacco Sebio, Rosario Natalia
Antioxidants
Liver Chemiluminescence
Copper
Glutathione
Iron
Oxidative Damage
title_short Rat liver antioxidant response to iron and copper overloads
title_full Rat liver antioxidant response to iron and copper overloads
title_fullStr Rat liver antioxidant response to iron and copper overloads
title_full_unstemmed Rat liver antioxidant response to iron and copper overloads
title_sort Rat liver antioxidant response to iron and copper overloads
dc.creator.none.fl_str_mv Musacco Sebio, Rosario Natalia
Saporito Magriñá, Christian Martín
Semprine, Jimena Vanina
Torti, Horacio Emilio
Ferrarotti, Nidia Fatima
Castro-Parodi, Mauricio Omar
Damiano, Alicia Ermelinda
Boveris, Alberto Antonio
Repetto, Marisa Gabriela
author Musacco Sebio, Rosario Natalia
author_facet Musacco Sebio, Rosario Natalia
Saporito Magriñá, Christian Martín
Semprine, Jimena Vanina
Torti, Horacio Emilio
Ferrarotti, Nidia Fatima
Castro-Parodi, Mauricio Omar
Damiano, Alicia Ermelinda
Boveris, Alberto Antonio
Repetto, Marisa Gabriela
author_role author
author2 Saporito Magriñá, Christian Martín
Semprine, Jimena Vanina
Torti, Horacio Emilio
Ferrarotti, Nidia Fatima
Castro-Parodi, Mauricio Omar
Damiano, Alicia Ermelinda
Boveris, Alberto Antonio
Repetto, Marisa Gabriela
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Antioxidants
Liver Chemiluminescence
Copper
Glutathione
Iron
Oxidative Damage
topic Antioxidants
Liver Chemiluminescence
Copper
Glutathione
Iron
Oxidative Damage
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv The rat liver antioxidant response to Fe and Cu overloads (0–60 mg/kg) was studied. Dose- and time-responses were determined and summarized by t1/2 and C50, the time and the liver metal content for half maximal oxidative responses. Liver GSH (reduced glutathione) and GSSG (glutathione disulfide) were determined. The GSH content and the GSH/GSSG ratio markedly decreased after Fe (58–66%) and Cu (79–81%) loads, with t1/2 of 4.0 and 2.0 h. The C50 were in a similar range for all the indicators (110–124 μg Fe/g and 40–50 μg Cu/g) and suggest a unique free-radical mediated process. Hydrophilic antioxidants markedly decreased after Fe and Cu (60–75%; t1/2: 4.5 and 4.0 h). Lipophilic antioxidants were also decreased (30–92%; t1/2: 7.0 and 5.5 h) after Fe and Cu. Superoxide dismutase (SOD) activities (Cu,Zn-SOD and Mn-SOD) and protein expression were adaptively increased after metal overloads (Cu,Zn-SOD: t1/2: 8–8.5 h and Mn-SOD: t1/2: 8.5–8.0 h). Catalase activity was increased after Fe (65%; t1/2: 8.5 h) and decreased after Cu (26%; t1/2: 8.0 h), whereas catalase expression was increased after Fe and decreased after Cu overloads. Glutathione peroxidase activity decreased after metal loads by 22–39% with a t1/2 of 4.5 h and with unchanged protein expression. GSH is the main and fastest responder antioxidant in Fe and Cu overloads. The results indicate that thiol (SH) content and antioxidant enzyme activities are central to the antioxidant defense in the oxidative stress and damage after Fe and Cu overloads.
Fil: Musacco Sebio, Rosario Natalia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Saporito Magriñá, Christian Martín. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Semprine, Jimena Vanina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Torti, Horacio Emilio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Ferrarotti, Nidia Fatima. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Castro-Parodi, Mauricio Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Damiano, Alicia Ermelinda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Boveris, Alberto Antonio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Repetto, Marisa Gabriela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
description The rat liver antioxidant response to Fe and Cu overloads (0–60 mg/kg) was studied. Dose- and time-responses were determined and summarized by t1/2 and C50, the time and the liver metal content for half maximal oxidative responses. Liver GSH (reduced glutathione) and GSSG (glutathione disulfide) were determined. The GSH content and the GSH/GSSG ratio markedly decreased after Fe (58–66%) and Cu (79–81%) loads, with t1/2 of 4.0 and 2.0 h. The C50 were in a similar range for all the indicators (110–124 μg Fe/g and 40–50 μg Cu/g) and suggest a unique free-radical mediated process. Hydrophilic antioxidants markedly decreased after Fe and Cu (60–75%; t1/2: 4.5 and 4.0 h). Lipophilic antioxidants were also decreased (30–92%; t1/2: 7.0 and 5.5 h) after Fe and Cu. Superoxide dismutase (SOD) activities (Cu,Zn-SOD and Mn-SOD) and protein expression were adaptively increased after metal overloads (Cu,Zn-SOD: t1/2: 8–8.5 h and Mn-SOD: t1/2: 8.5–8.0 h). Catalase activity was increased after Fe (65%; t1/2: 8.5 h) and decreased after Cu (26%; t1/2: 8.0 h), whereas catalase expression was increased after Fe and decreased after Cu overloads. Glutathione peroxidase activity decreased after metal loads by 22–39% with a t1/2 of 4.5 h and with unchanged protein expression. GSH is the main and fastest responder antioxidant in Fe and Cu overloads. The results indicate that thiol (SH) content and antioxidant enzyme activities are central to the antioxidant defense in the oxidative stress and damage after Fe and Cu overloads.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/30521
Musacco Sebio, Rosario Natalia; Saporito Magriñá, Christian Martín; Semprine, Jimena Vanina; Torti, Horacio Emilio; Ferrarotti, Nidia Fatima; et al.; Rat liver antioxidant response to iron and copper overloads; Elsevier; Journal of Inorganic Biochemistry; 137; 4-2014; 94-100
0162-0134
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30521
identifier_str_mv Musacco Sebio, Rosario Natalia; Saporito Magriñá, Christian Martín; Semprine, Jimena Vanina; Torti, Horacio Emilio; Ferrarotti, Nidia Fatima; et al.; Rat liver antioxidant response to iron and copper overloads; Elsevier; Journal of Inorganic Biochemistry; 137; 4-2014; 94-100
0162-0134
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi//10.1016/j.jinorgbio.2014.04.014
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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