Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state

Autores
Arreche, Noelia Daniela; Sarati, Lorena Ivonne; Martinez, Carla Romina; Fellet, Andrea L.; Balaszczuk, Ana María
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Our previous results have shown that hypovolemic state induced by acute hemorrhage in young anesthetized rats triggers heterogeneous and dynamic nitric oxide synthase (NOS) activation, modulating the cardiovascular response. Involvement of the nitric oxide pathway is both isoform-specific and time-dependent. The aim of the present study was to investigate changes in activity and protein levels of the different NOS forms, changes in the abundance of caveolin-1 during hypovolemic state and caveolin-1/eNOS association using young and middle-aged rats. Therefore, we studied (i) changes in NOS activity and protein levels and (ii) caveolin-1 abundance, as well as its association with endothelial NOS (eNOS) in ventricles from young and middle-aged rats during hypovolemic state. We used 2-month (young) and 12-month (middle-aged) old male Sprague-Dawley rats. Animals were divided into two groups (n. = 14/group): (a) sham; (b) hemorrhaged animals (20% blood loss). With advancing age, we observed an increase in ventricle NOS activity accompanied by a decrease in eNOS and caveolin-1 protein levels, but increased inducible NOS (iNOS). We also observed that aging is associated with caveolin-1 dissociation from eNOS. Myocardia from young and middle-aged rats subjected to hemorrhage-induced hypovolemia exhibited an increase in NOS activity and protein levels with a reduction in caveolin-1 abundance, accompanied by a greater dissociation between eNOS and its regulatory protein. Further, an increase in iNOS protein levels after blood loss was observed only in middle-aged rats. Our evidence suggests that aging and acute hemorrhage contribute to the development of upregulation in NOS activity. Our findings demonstrate that specific expression patterns of ventricular NOS isoforms, alterations in the amount of caveolin-1 and caveolin-1/eNOS interaction are involved in aged-related adjustment to hypovolemic state. © 2012 Elsevier B.V.
Fil: Arreche, Noelia Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Sarati, Lorena Ivonne. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Martinez, Carla Romina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Fellet, Andrea L.. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Balaszczuk, Ana María. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Materia
Aging
Caveolin-1
Hemorrhage
Nitric Oxide
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/67402
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/67402
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic stateArreche, Noelia DanielaSarati, Lorena IvonneMartinez, Carla RominaFellet, Andrea L.Balaszczuk, Ana MaríaAgingCaveolin-1HemorrhageNitric Oxidehttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Our previous results have shown that hypovolemic state induced by acute hemorrhage in young anesthetized rats triggers heterogeneous and dynamic nitric oxide synthase (NOS) activation, modulating the cardiovascular response. Involvement of the nitric oxide pathway is both isoform-specific and time-dependent. The aim of the present study was to investigate changes in activity and protein levels of the different NOS forms, changes in the abundance of caveolin-1 during hypovolemic state and caveolin-1/eNOS association using young and middle-aged rats. Therefore, we studied (i) changes in NOS activity and protein levels and (ii) caveolin-1 abundance, as well as its association with endothelial NOS (eNOS) in ventricles from young and middle-aged rats during hypovolemic state. We used 2-month (young) and 12-month (middle-aged) old male Sprague-Dawley rats. Animals were divided into two groups (n. = 14/group): (a) sham; (b) hemorrhaged animals (20% blood loss). With advancing age, we observed an increase in ventricle NOS activity accompanied by a decrease in eNOS and caveolin-1 protein levels, but increased inducible NOS (iNOS). We also observed that aging is associated with caveolin-1 dissociation from eNOS. Myocardia from young and middle-aged rats subjected to hemorrhage-induced hypovolemia exhibited an increase in NOS activity and protein levels with a reduction in caveolin-1 abundance, accompanied by a greater dissociation between eNOS and its regulatory protein. Further, an increase in iNOS protein levels after blood loss was observed only in middle-aged rats. Our evidence suggests that aging and acute hemorrhage contribute to the development of upregulation in NOS activity. Our findings demonstrate that specific expression patterns of ventricular NOS isoforms, alterations in the amount of caveolin-1 and caveolin-1/eNOS interaction are involved in aged-related adjustment to hypovolemic state. © 2012 Elsevier B.V.Fil: Arreche, Noelia Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Sarati, Lorena Ivonne. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Martinez, Carla Romina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Fellet, Andrea L.. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Balaszczuk, Ana María. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaElsevier Science2012-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67402Arreche, Noelia Daniela; Sarati, Lorena Ivonne; Martinez, Carla Romina; Fellet, Andrea L.; Balaszczuk, Ana María; Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state; Elsevier Science; Regulatory Peptides; 179; 1-3; 11-2012; 43-490167-0115CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.regpep.2012.08.002info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0167011512002182info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:34Zoai:ri.conicet.gov.ar:11336/67402instacron: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:34982025-09-29 10:13:35.154CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
title Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
spellingShingle Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
Arreche, Noelia Daniela
Aging
Caveolin-1
Hemorrhage
Nitric Oxide
title_short Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
title_full Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
title_fullStr Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
title_full_unstemmed Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
title_sort Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state
dc.creator.none.fl_str_mv Arreche, Noelia Daniela
Sarati, Lorena Ivonne
Martinez, Carla Romina
Fellet, Andrea L.
Balaszczuk, Ana María
author Arreche, Noelia Daniela
author_facet Arreche, Noelia Daniela
Sarati, Lorena Ivonne
Martinez, Carla Romina
Fellet, Andrea L.
Balaszczuk, Ana María
author_role author
author2 Sarati, Lorena Ivonne
Martinez, Carla Romina
Fellet, Andrea L.
Balaszczuk, Ana María
author2_role author
author
author
author
dc.subject.none.fl_str_mv Aging
Caveolin-1
Hemorrhage
Nitric Oxide
topic Aging
Caveolin-1
Hemorrhage
Nitric Oxide
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Our previous results have shown that hypovolemic state induced by acute hemorrhage in young anesthetized rats triggers heterogeneous and dynamic nitric oxide synthase (NOS) activation, modulating the cardiovascular response. Involvement of the nitric oxide pathway is both isoform-specific and time-dependent. The aim of the present study was to investigate changes in activity and protein levels of the different NOS forms, changes in the abundance of caveolin-1 during hypovolemic state and caveolin-1/eNOS association using young and middle-aged rats. Therefore, we studied (i) changes in NOS activity and protein levels and (ii) caveolin-1 abundance, as well as its association with endothelial NOS (eNOS) in ventricles from young and middle-aged rats during hypovolemic state. We used 2-month (young) and 12-month (middle-aged) old male Sprague-Dawley rats. Animals were divided into two groups (n. = 14/group): (a) sham; (b) hemorrhaged animals (20% blood loss). With advancing age, we observed an increase in ventricle NOS activity accompanied by a decrease in eNOS and caveolin-1 protein levels, but increased inducible NOS (iNOS). We also observed that aging is associated with caveolin-1 dissociation from eNOS. Myocardia from young and middle-aged rats subjected to hemorrhage-induced hypovolemia exhibited an increase in NOS activity and protein levels with a reduction in caveolin-1 abundance, accompanied by a greater dissociation between eNOS and its regulatory protein. Further, an increase in iNOS protein levels after blood loss was observed only in middle-aged rats. Our evidence suggests that aging and acute hemorrhage contribute to the development of upregulation in NOS activity. Our findings demonstrate that specific expression patterns of ventricular NOS isoforms, alterations in the amount of caveolin-1 and caveolin-1/eNOS interaction are involved in aged-related adjustment to hypovolemic state. © 2012 Elsevier B.V.
Fil: Arreche, Noelia Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Sarati, Lorena Ivonne. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Martinez, Carla Romina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Fellet, Andrea L.. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
Fil: Balaszczuk, Ana María. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
description Our previous results have shown that hypovolemic state induced by acute hemorrhage in young anesthetized rats triggers heterogeneous and dynamic nitric oxide synthase (NOS) activation, modulating the cardiovascular response. Involvement of the nitric oxide pathway is both isoform-specific and time-dependent. The aim of the present study was to investigate changes in activity and protein levels of the different NOS forms, changes in the abundance of caveolin-1 during hypovolemic state and caveolin-1/eNOS association using young and middle-aged rats. Therefore, we studied (i) changes in NOS activity and protein levels and (ii) caveolin-1 abundance, as well as its association with endothelial NOS (eNOS) in ventricles from young and middle-aged rats during hypovolemic state. We used 2-month (young) and 12-month (middle-aged) old male Sprague-Dawley rats. Animals were divided into two groups (n. = 14/group): (a) sham; (b) hemorrhaged animals (20% blood loss). With advancing age, we observed an increase in ventricle NOS activity accompanied by a decrease in eNOS and caveolin-1 protein levels, but increased inducible NOS (iNOS). We also observed that aging is associated with caveolin-1 dissociation from eNOS. Myocardia from young and middle-aged rats subjected to hemorrhage-induced hypovolemia exhibited an increase in NOS activity and protein levels with a reduction in caveolin-1 abundance, accompanied by a greater dissociation between eNOS and its regulatory protein. Further, an increase in iNOS protein levels after blood loss was observed only in middle-aged rats. Our evidence suggests that aging and acute hemorrhage contribute to the development of upregulation in NOS activity. Our findings demonstrate that specific expression patterns of ventricular NOS isoforms, alterations in the amount of caveolin-1 and caveolin-1/eNOS interaction are involved in aged-related adjustment to hypovolemic state. © 2012 Elsevier B.V.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
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/11336/67402
Arreche, Noelia Daniela; Sarati, Lorena Ivonne; Martinez, Carla Romina; Fellet, Andrea L.; Balaszczuk, Ana María; Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state; Elsevier Science; Regulatory Peptides; 179; 1-3; 11-2012; 43-49
0167-0115
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67402
identifier_str_mv Arreche, Noelia Daniela; Sarati, Lorena Ivonne; Martinez, Carla Romina; Fellet, Andrea L.; Balaszczuk, Ana María; Contribution of caveolin-1 to ventricular nitric oxide in age-related adaptation to hypovolemic state; Elsevier Science; Regulatory Peptides; 179; 1-3; 11-2012; 43-49
0167-0115
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.regpep.2012.08.002
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0167011512002182
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
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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
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score 13.070432

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