Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling

Autores
Aiello, Ernesto Alejandro; de Giusti, Verónica Celeste
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The sodium/ bicarbonate cotransporter (NBC) is, with the Na+ /H+ exchanger (NHE), an important alkalinizing mechanism that maintains cellular intracellular pH (pHi). In the heart exists at least three isoforms of NBC, one that promotes the co-influx of 1 molecule of Na+ per 1molecule of HCO3 - (electroneutral isoform; nNBC) and two others that generates the co-influx of 1 molecule of Na+ per 2 molecules of HCO3 - (electrogenic isoforms; eNBC). In addition, the eNBC generates an anionic repolarizing current that modulate the cardiac action potential (CAP), adding to such isoforms the relevance to modulate the electrophysiological function of the heart. Angiotensin II (Ang II) is one of the main hormones that regulate cardiac physiology. The alkalinizing mechanisms (NHE and NBC) are stimulated by Ang II, increasing pHi and intracellular Na+ concentration, which indirectly, due to the stimulation of the Na+ /Ca2+ exchanger (NCX) operating in the reverse form, leads to an increase in the intracellular Ca2+ concentration. Interestingly, it has been shown that Ang II exhibits an opposite effect on NBC isoforms: it activates the nNBC and inhibits the eNBC. This inhibition generates a CAP prolongation, which could directly increase the intracellular Ca2+ concentration. The regulation of the intracellular Na+ and Ca2+ concentrations is crucial for the cardiac cellular physiology, but these ions are also involved in the development of cardiac hypertrophy and the damage produced by ischemia-reperfusion, suggesting a potential role of NBC in cardiac diseases.
Fil: Aiello, Ernesto Alejandro. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico La Plata. Centro de Investigaciones Cardiovasculares "Dr. Horacio Eugenio Cingolani"; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
Fil: de Giusti, Verónica Celeste. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico La Plata. Centro de Investigaciones Cardiovasculares "Dr. Horacio Eugenio Cingolani"; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
Materia
Angiotensin Ii
Calcium Overload
Cardiac Arrhythmias
Cardiac Hypertrophy
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:11336/11945
Acceder
id CONICETDig_362256d1d978d4acaa5fc93c6254f5ba
oai_identifier_str oai:ri.conicet.gov.ar:11336/11945
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodellingAiello, Ernesto Alejandrode Giusti, Verónica CelesteAngiotensin IiCalcium OverloadCardiac ArrhythmiasCardiac Hypertrophyhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3The sodium/ bicarbonate cotransporter (NBC) is, with the Na+ /H+ exchanger (NHE), an important alkalinizing mechanism that maintains cellular intracellular pH (pHi). In the heart exists at least three isoforms of NBC, one that promotes the co-influx of 1 molecule of Na+ per 1molecule of HCO3 - (electroneutral isoform; nNBC) and two others that generates the co-influx of 1 molecule of Na+ per 2 molecules of HCO3 - (electrogenic isoforms; eNBC). In addition, the eNBC generates an anionic repolarizing current that modulate the cardiac action potential (CAP), adding to such isoforms the relevance to modulate the electrophysiological function of the heart. Angiotensin II (Ang II) is one of the main hormones that regulate cardiac physiology. The alkalinizing mechanisms (NHE and NBC) are stimulated by Ang II, increasing pHi and intracellular Na+ concentration, which indirectly, due to the stimulation of the Na+ /Ca2+ exchanger (NCX) operating in the reverse form, leads to an increase in the intracellular Ca2+ concentration. Interestingly, it has been shown that Ang II exhibits an opposite effect on NBC isoforms: it activates the nNBC and inhibits the eNBC. This inhibition generates a CAP prolongation, which could directly increase the intracellular Ca2+ concentration. The regulation of the intracellular Na+ and Ca2+ concentrations is crucial for the cardiac cellular physiology, but these ions are also involved in the development of cardiac hypertrophy and the damage produced by ischemia-reperfusion, suggesting a potential role of NBC in cardiac diseases.Fil: Aiello, Ernesto Alejandro. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico La Plata. Centro de Investigaciones Cardiovasculares "Dr. Horacio Eugenio Cingolani"; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; ArgentinaFil: de Giusti, Verónica Celeste. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico La Plata. Centro de Investigaciones Cardiovasculares "Dr. Horacio Eugenio Cingolani"; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; ArgentinaBentham Science Publishers2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11945Aiello, Ernesto Alejandro; de Giusti, Verónica Celeste; Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling; Bentham Science Publishers; Current Cardiology Reviews; 9; 1; 2-2013; 24-321573-403Xenginfo:eu-repo/semantics/altIdentifier/doi/10.2174/157340313805076340info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/ben/ccr/2013/00000009/00000001/art00005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:28Zoai:ri.conicet.gov.ar:11336/11945instacron: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 10:17:29.319CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
title Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
spellingShingle Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
Aiello, Ernesto Alejandro
Angiotensin Ii
Calcium Overload
Cardiac Arrhythmias
Cardiac Hypertrophy
title_short Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
title_full Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
title_fullStr Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
title_full_unstemmed Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
title_sort Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling
dc.creator.none.fl_str_mv Aiello, Ernesto Alejandro
de Giusti, Verónica Celeste
author Aiello, Ernesto Alejandro
author_facet Aiello, Ernesto Alejandro
de Giusti, Verónica Celeste
author_role author
author2 de Giusti, Verónica Celeste
author2_role author
dc.subject.none.fl_str_mv Angiotensin Ii
Calcium Overload
Cardiac Arrhythmias
Cardiac Hypertrophy
topic Angiotensin Ii
Calcium Overload
Cardiac Arrhythmias
Cardiac Hypertrophy
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 sodium/ bicarbonate cotransporter (NBC) is, with the Na+ /H+ exchanger (NHE), an important alkalinizing mechanism that maintains cellular intracellular pH (pHi). In the heart exists at least three isoforms of NBC, one that promotes the co-influx of 1 molecule of Na+ per 1molecule of HCO3 - (electroneutral isoform; nNBC) and two others that generates the co-influx of 1 molecule of Na+ per 2 molecules of HCO3 - (electrogenic isoforms; eNBC). In addition, the eNBC generates an anionic repolarizing current that modulate the cardiac action potential (CAP), adding to such isoforms the relevance to modulate the electrophysiological function of the heart. Angiotensin II (Ang II) is one of the main hormones that regulate cardiac physiology. The alkalinizing mechanisms (NHE and NBC) are stimulated by Ang II, increasing pHi and intracellular Na+ concentration, which indirectly, due to the stimulation of the Na+ /Ca2+ exchanger (NCX) operating in the reverse form, leads to an increase in the intracellular Ca2+ concentration. Interestingly, it has been shown that Ang II exhibits an opposite effect on NBC isoforms: it activates the nNBC and inhibits the eNBC. This inhibition generates a CAP prolongation, which could directly increase the intracellular Ca2+ concentration. The regulation of the intracellular Na+ and Ca2+ concentrations is crucial for the cardiac cellular physiology, but these ions are also involved in the development of cardiac hypertrophy and the damage produced by ischemia-reperfusion, suggesting a potential role of NBC in cardiac diseases.
Fil: Aiello, Ernesto Alejandro. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico La Plata. Centro de Investigaciones Cardiovasculares "Dr. Horacio Eugenio Cingolani"; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
Fil: de Giusti, Verónica Celeste. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico La Plata. Centro de Investigaciones Cardiovasculares "Dr. Horacio Eugenio Cingolani"; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
description The sodium/ bicarbonate cotransporter (NBC) is, with the Na+ /H+ exchanger (NHE), an important alkalinizing mechanism that maintains cellular intracellular pH (pHi). In the heart exists at least three isoforms of NBC, one that promotes the co-influx of 1 molecule of Na+ per 1molecule of HCO3 - (electroneutral isoform; nNBC) and two others that generates the co-influx of 1 molecule of Na+ per 2 molecules of HCO3 - (electrogenic isoforms; eNBC). In addition, the eNBC generates an anionic repolarizing current that modulate the cardiac action potential (CAP), adding to such isoforms the relevance to modulate the electrophysiological function of the heart. Angiotensin II (Ang II) is one of the main hormones that regulate cardiac physiology. The alkalinizing mechanisms (NHE and NBC) are stimulated by Ang II, increasing pHi and intracellular Na+ concentration, which indirectly, due to the stimulation of the Na+ /Ca2+ exchanger (NCX) operating in the reverse form, leads to an increase in the intracellular Ca2+ concentration. Interestingly, it has been shown that Ang II exhibits an opposite effect on NBC isoforms: it activates the nNBC and inhibits the eNBC. This inhibition generates a CAP prolongation, which could directly increase the intracellular Ca2+ concentration. The regulation of the intracellular Na+ and Ca2+ concentrations is crucial for the cardiac cellular physiology, but these ions are also involved in the development of cardiac hypertrophy and the damage produced by ischemia-reperfusion, suggesting a potential role of NBC in cardiac diseases.
publishDate 2013
dc.date.none.fl_str_mv 2013-02
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/11336/11945
Aiello, Ernesto Alejandro; de Giusti, Verónica Celeste; Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling; Bentham Science Publishers; Current Cardiology Reviews; 9; 1; 2-2013; 24-32
1573-403X
url http://hdl.handle.net/11336/11945
identifier_str_mv Aiello, Ernesto Alejandro; de Giusti, Verónica Celeste; Regulation of the Cardiac Sodium/Bicarbonate cotransporter by Angiotensin II: potential contribution to structural, ionic and electrophysiological Myocardial remodelling; Bentham Science Publishers; Current Cardiology Reviews; 9; 1; 2-2013; 24-32
1573-403X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2174/157340313805076340
info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/ben/ccr/2013/00000009/00000001/art00005
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
dc.publisher.none.fl_str_mv Bentham Science Publishers
publisher.none.fl_str_mv Bentham Science Publishers
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_ 1844614128165978112
score 13.070432

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