Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats
- Autores
- Belló Klein, A.; Morgan Martins, M. I.; Barp, J.; Llesuy, Susana Francisca; Bello, A. A.; Singal, P. K.
- Año de publicación
- 2000
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Reactive oxygen species are formed in physiological and pathological conditions in mammalian tissues. Because of their high reactivity, they may interact with biomolecules, inducing oxidative injury. Increases in lipid peroxidation can result in oxidative damage to cellular membranes. Protection against oxidative damage is provided by enzymatic and non-enzymatic antioxidant defenses. Antioxidant enzyme activities and lipid peroxidation, as an index of oxidative stress injury, were evaluated in different seasons over one year in the heart and liver of rats, maintained on a 12 h light and dark cycle. Glutathione peroxidase and catalase activities, in both tissues, were maximal in the summer season. Lipid peroxidation in the heart was maximal in the spring as compared to the other seasons and it did not vary in the liver during the year. These findings suggest that any study of antioxidants or oxidative stress must take into account such seasonal variations for a more precise analysis of changes due to any pathological condition. © 2000 Elsevier Science Inc. All rights reserved.
Fil: Belló Klein, A.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil
Fil: Morgan Martins, M. I.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil
Fil: Barp, J.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil
Fil: Llesuy, Susana Francisca. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina
Fil: Bello, A. A.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil
Fil: Singal, P. K.. St Boniface General Hospital Research Centre; Canadá - Materia
-
Catalase
Glutathione Peroxidase (Gshpx)
Lipid Peroxidation
Seasonal Variations - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/44493
Ver los metadatos del registro completo
id |
CONICETDig_2dcd78f3321026d776366f849c2a0e39 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/44493 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in ratsBelló Klein, A.Morgan Martins, M. I.Barp, J.Llesuy, Susana FranciscaBello, A. A.Singal, P. K.CatalaseGlutathione Peroxidase (Gshpx)Lipid PeroxidationSeasonal Variationshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Reactive oxygen species are formed in physiological and pathological conditions in mammalian tissues. Because of their high reactivity, they may interact with biomolecules, inducing oxidative injury. Increases in lipid peroxidation can result in oxidative damage to cellular membranes. Protection against oxidative damage is provided by enzymatic and non-enzymatic antioxidant defenses. Antioxidant enzyme activities and lipid peroxidation, as an index of oxidative stress injury, were evaluated in different seasons over one year in the heart and liver of rats, maintained on a 12 h light and dark cycle. Glutathione peroxidase and catalase activities, in both tissues, were maximal in the summer season. Lipid peroxidation in the heart was maximal in the spring as compared to the other seasons and it did not vary in the liver during the year. These findings suggest that any study of antioxidants or oxidative stress must take into account such seasonal variations for a more precise analysis of changes due to any pathological condition. © 2000 Elsevier Science Inc. All rights reserved.Fil: Belló Klein, A.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; BrasilFil: Morgan Martins, M. I.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; BrasilFil: Barp, J.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; BrasilFil: Llesuy, Susana Francisca. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; ArgentinaFil: Bello, A. A.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; BrasilFil: Singal, P. K.. St Boniface General Hospital Research Centre; CanadáElsevier Science Inc2000-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44493Belló Klein, A.; Morgan Martins, M. I.; Barp, J.; Llesuy, Susana Francisca; Bello, A. A.; et al.; Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats; Elsevier Science Inc; Comparative Biochemistry And Physiology. C, Comparative Pharmacology And Toxicology.; 126; 2; 6-2000; 203-2080742-84131878-1942CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0742841300001122info:eu-repo/semantics/altIdentifier/doi/10.1016/S0742-8413(00)00112-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:05:11Zoai:ri.conicet.gov.ar:11336/44493instacron: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 15:05:11.742CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
title |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
spellingShingle |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats Belló Klein, A. Catalase Glutathione Peroxidase (Gshpx) Lipid Peroxidation Seasonal Variations |
title_short |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
title_full |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
title_fullStr |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
title_full_unstemmed |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
title_sort |
Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats |
dc.creator.none.fl_str_mv |
Belló Klein, A. Morgan Martins, M. I. Barp, J. Llesuy, Susana Francisca Bello, A. A. Singal, P. K. |
author |
Belló Klein, A. |
author_facet |
Belló Klein, A. Morgan Martins, M. I. Barp, J. Llesuy, Susana Francisca Bello, A. A. Singal, P. K. |
author_role |
author |
author2 |
Morgan Martins, M. I. Barp, J. Llesuy, Susana Francisca Bello, A. A. Singal, P. K. |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Catalase Glutathione Peroxidase (Gshpx) Lipid Peroxidation Seasonal Variations |
topic |
Catalase Glutathione Peroxidase (Gshpx) Lipid Peroxidation Seasonal Variations |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Reactive oxygen species are formed in physiological and pathological conditions in mammalian tissues. Because of their high reactivity, they may interact with biomolecules, inducing oxidative injury. Increases in lipid peroxidation can result in oxidative damage to cellular membranes. Protection against oxidative damage is provided by enzymatic and non-enzymatic antioxidant defenses. Antioxidant enzyme activities and lipid peroxidation, as an index of oxidative stress injury, were evaluated in different seasons over one year in the heart and liver of rats, maintained on a 12 h light and dark cycle. Glutathione peroxidase and catalase activities, in both tissues, were maximal in the summer season. Lipid peroxidation in the heart was maximal in the spring as compared to the other seasons and it did not vary in the liver during the year. These findings suggest that any study of antioxidants or oxidative stress must take into account such seasonal variations for a more precise analysis of changes due to any pathological condition. © 2000 Elsevier Science Inc. All rights reserved. Fil: Belló Klein, A.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil Fil: Morgan Martins, M. I.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil Fil: Barp, J.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil Fil: Llesuy, Susana Francisca. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina Fil: Bello, A. A.. Universidade Federal do Rio Grande do Sul. Instituto de Ciências Básicas da Saude; Brasil Fil: Singal, P. K.. St Boniface General Hospital Research Centre; Canadá |
description |
Reactive oxygen species are formed in physiological and pathological conditions in mammalian tissues. Because of their high reactivity, they may interact with biomolecules, inducing oxidative injury. Increases in lipid peroxidation can result in oxidative damage to cellular membranes. Protection against oxidative damage is provided by enzymatic and non-enzymatic antioxidant defenses. Antioxidant enzyme activities and lipid peroxidation, as an index of oxidative stress injury, were evaluated in different seasons over one year in the heart and liver of rats, maintained on a 12 h light and dark cycle. Glutathione peroxidase and catalase activities, in both tissues, were maximal in the summer season. Lipid peroxidation in the heart was maximal in the spring as compared to the other seasons and it did not vary in the liver during the year. These findings suggest that any study of antioxidants or oxidative stress must take into account such seasonal variations for a more precise analysis of changes due to any pathological condition. © 2000 Elsevier Science Inc. All rights reserved. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-06 |
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/11336/44493 Belló Klein, A.; Morgan Martins, M. I.; Barp, J.; Llesuy, Susana Francisca; Bello, A. A.; et al.; Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats; Elsevier Science Inc; Comparative Biochemistry And Physiology. C, Comparative Pharmacology And Toxicology.; 126; 2; 6-2000; 203-208 0742-8413 1878-1942 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/44493 |
identifier_str_mv |
Belló Klein, A.; Morgan Martins, M. I.; Barp, J.; Llesuy, Susana Francisca; Bello, A. A.; et al.; Circaannual changes in antioxidants and oxidative stress in the heart and liver in rats; Elsevier Science Inc; Comparative Biochemistry And Physiology. C, Comparative Pharmacology And Toxicology.; 126; 2; 6-2000; 203-208 0742-8413 1878-1942 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0742841300001122 info:eu-repo/semantics/altIdentifier/doi/10.1016/S0742-8413(00)00112-2 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science Inc |
publisher.none.fl_str_mv |
Elsevier Science Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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 |
_version_ |
1846083194433044480 |
score |
13.22299 |