Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart

Detalhes bibliográficos
Autor(a) principal: Jeremic,Nevena
Data de Publicação: 2015
Outros Autores: Petkovic,Anica, Srejovic,Ivan, Zivkovic,Vladimir, Djuric,Dragan, Jakovljevic,Vladimir
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Cardiovascular Surgery (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382015000200019
Resumo: AbstractObjective:The aim of this study was to compare protective effects of ischemic and potential protective effects of pharmacological preconditioning with omeprazole on isolated rat heart subjected to ischemia/reperfusion.Methods:The hearts of male Wistar albino rats were excised and perfused on a Langendorff apparatus. In control group (CG) after stabilization period, hearts were subjected to global ischemia (perfusion was totally stopped) for 20 minutes and 30 minutes of reperfusion. Hearts of group II (IPC) were submitted to ischemic preconditioning lasting 5 minutes before 20 minutes of ischemia and 30 minutes of reperfusion. In third group (OPC) hearts first underwent preconditioning lasting 5 minutes with 100μM omeprazole, and then submitted 20 minutes of ischemia and 30 minutes of reperfusion.Results:Administration of omeprazole before ischemia induction had protective effect on myocardium function recovery especially regarding to values of systolic left ventricular pressure and dp/dt max. Also our findings are that values of coronary flow did not change between OPC and IPC groups in last point of reperfusion.Conclusion:Based on our results it seems that ischemic preconditioning could be used as first window of protection after ischemic injury especially because all investigated parameters showed continuous trend of recovery of myocardial function. On the other hand, preconditioning with omeprazole induced sudden trend of recovery with positive myocardium protection, although less effective than results obtained with ischemic preconditioning not withstand, we must consider that omeprazole may be used in many clinical circumstances where direct coronary clamping for ischemic preconditioning is not possible.
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spelling Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heartCoronary circulationIschemic Preconditioning, MyocardialOmeprazoleAbstractObjective:The aim of this study was to compare protective effects of ischemic and potential protective effects of pharmacological preconditioning with omeprazole on isolated rat heart subjected to ischemia/reperfusion.Methods:The hearts of male Wistar albino rats were excised and perfused on a Langendorff apparatus. In control group (CG) after stabilization period, hearts were subjected to global ischemia (perfusion was totally stopped) for 20 minutes and 30 minutes of reperfusion. Hearts of group II (IPC) were submitted to ischemic preconditioning lasting 5 minutes before 20 minutes of ischemia and 30 minutes of reperfusion. In third group (OPC) hearts first underwent preconditioning lasting 5 minutes with 100μM omeprazole, and then submitted 20 minutes of ischemia and 30 minutes of reperfusion.Results:Administration of omeprazole before ischemia induction had protective effect on myocardium function recovery especially regarding to values of systolic left ventricular pressure and dp/dt max. Also our findings are that values of coronary flow did not change between OPC and IPC groups in last point of reperfusion.Conclusion:Based on our results it seems that ischemic preconditioning could be used as first window of protection after ischemic injury especially because all investigated parameters showed continuous trend of recovery of myocardial function. On the other hand, preconditioning with omeprazole induced sudden trend of recovery with positive myocardium protection, although less effective than results obtained with ischemic preconditioning not withstand, we must consider that omeprazole may be used in many clinical circumstances where direct coronary clamping for ischemic preconditioning is not possible.Sociedade Brasileira de Cirurgia Cardiovascular2015-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382015000200019Brazilian Journal of Cardiovascular Surgery v.30 n.2 2015reponame:Brazilian Journal of Cardiovascular Surgery (Online)instname:Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV)instacron:SBCCV10.5935/1678-9741.20150020info:eu-repo/semantics/openAccessJeremic,NevenaPetkovic,AnicaSrejovic,IvanZivkovic,VladimirDjuric,DraganJakovljevic,Vladimireng2015-10-09T00:00:00Zoai:scielo:S0102-76382015000200019Revistahttp://www.rbccv.org.br/https://old.scielo.br/oai/scielo-oai.php||rosangela.monteiro@incor.usp.br|| domingo@braile.com.br|| brandau@braile.com.br1678-97410102-7638opendoar:2015-10-09T00:00Brazilian Journal of Cardiovascular Surgery (Online) - Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV)false
dc.title.none.fl_str_mv Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
title Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
spellingShingle Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
Jeremic,Nevena
Coronary circulation
Ischemic Preconditioning, Myocardial
Omeprazole
title_short Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
title_full Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
title_fullStr Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
title_full_unstemmed Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
title_sort Effects of ischemia and omeprazole preconditioning on functional recovery of isolated rat heart
author Jeremic,Nevena
author_facet Jeremic,Nevena
Petkovic,Anica
Srejovic,Ivan
Zivkovic,Vladimir
Djuric,Dragan
Jakovljevic,Vladimir
author_role author
author2 Petkovic,Anica
Srejovic,Ivan
Zivkovic,Vladimir
Djuric,Dragan
Jakovljevic,Vladimir
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Jeremic,Nevena
Petkovic,Anica
Srejovic,Ivan
Zivkovic,Vladimir
Djuric,Dragan
Jakovljevic,Vladimir
dc.subject.por.fl_str_mv Coronary circulation
Ischemic Preconditioning, Myocardial
Omeprazole
topic Coronary circulation
Ischemic Preconditioning, Myocardial
Omeprazole
description AbstractObjective:The aim of this study was to compare protective effects of ischemic and potential protective effects of pharmacological preconditioning with omeprazole on isolated rat heart subjected to ischemia/reperfusion.Methods:The hearts of male Wistar albino rats were excised and perfused on a Langendorff apparatus. In control group (CG) after stabilization period, hearts were subjected to global ischemia (perfusion was totally stopped) for 20 minutes and 30 minutes of reperfusion. Hearts of group II (IPC) were submitted to ischemic preconditioning lasting 5 minutes before 20 minutes of ischemia and 30 minutes of reperfusion. In third group (OPC) hearts first underwent preconditioning lasting 5 minutes with 100μM omeprazole, and then submitted 20 minutes of ischemia and 30 minutes of reperfusion.Results:Administration of omeprazole before ischemia induction had protective effect on myocardium function recovery especially regarding to values of systolic left ventricular pressure and dp/dt max. Also our findings are that values of coronary flow did not change between OPC and IPC groups in last point of reperfusion.Conclusion:Based on our results it seems that ischemic preconditioning could be used as first window of protection after ischemic injury especially because all investigated parameters showed continuous trend of recovery of myocardial function. On the other hand, preconditioning with omeprazole induced sudden trend of recovery with positive myocardium protection, although less effective than results obtained with ischemic preconditioning not withstand, we must consider that omeprazole may be used in many clinical circumstances where direct coronary clamping for ischemic preconditioning is not possible.
publishDate 2015
dc.date.none.fl_str_mv 2015-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382015000200019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382015000200019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/1678-9741.20150020
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Cirurgia Cardiovascular
publisher.none.fl_str_mv Sociedade Brasileira de Cirurgia Cardiovascular
dc.source.none.fl_str_mv Brazilian Journal of Cardiovascular Surgery v.30 n.2 2015
reponame:Brazilian Journal of Cardiovascular Surgery (Online)
instname:Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV)
instacron:SBCCV
instname_str Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV)
instacron_str SBCCV
institution SBCCV
reponame_str Brazilian Journal of Cardiovascular Surgery (Online)
collection Brazilian Journal of Cardiovascular Surgery (Online)
repository.name.fl_str_mv Brazilian Journal of Cardiovascular Surgery (Online) - Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV)
repository.mail.fl_str_mv ||rosangela.monteiro@incor.usp.br|| domingo@braile.com.br|| brandau@braile.com.br
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