2013
NHE Isoform Switching and KChIP2 Upregulation in Aging Porcine Atria
Kant R, Hu Z, Malhotra JK, Krogh-Madsen T, Christini DJ, Heerdt PM, Abbott GW. NHE Isoform Switching and KChIP2 Upregulation in Aging Porcine Atria. PLOS ONE 2013, 8: e82951. PMID: 24376615, PMCID: PMC3871617, DOI: 10.1371/journal.pone.0082951.Peer-Reviewed Original ResearchConceptsAtrial fibrillationMyocyte action potential durationHuman cardiac physiologyCessation of stimulationAction potential durationLarge animal modelSodium-hydrogen exchangerReperfusion arrhythmiasNHE1-specific inhibitorMyocardial responsivenessPharmacological responsivenessPharmacologic efficacyYoung adult pigsAtrial tissuePotential durationTherapeutic targetAnimal modelsCardiac pathologyKChIP2 expressionReal-time qPCRPotential molecular basisTherapeutic agentsCardiac physiologyFemale swineYoung adults
2010
Aldehyde Dehydrogenase Activation Prevents Reperfusion Arrhythmias by Inhibiting Local Renin Release From Cardiac Mast Cells
Koda K, Salazar-Rodriguez M, Corti F, Chan NY, Estephan R, Silver RB, Mochly-Rosen D, Levi R. Aldehyde Dehydrogenase Activation Prevents Reperfusion Arrhythmias by Inhibiting Local Renin Release From Cardiac Mast Cells. Circulation 2010, 122: 771-781. PMID: 20697027, PMCID: PMC2927811, DOI: 10.1161/circulationaha.110.952481.Peer-Reviewed Original ResearchMeSH KeywordsAldehyde DehydrogenaseAnimalsArrhythmias, CardiacCell DegranulationCell Line, TumorEnzyme ActivationGuinea PigsHumansIschemic Preconditioning, MyocardialMaleMast CellsMyocardial Reperfusion InjuryMyocytes, CardiacProtein Kinase C-epsilonReceptor, Adenosine A2BReceptor, Adenosine A3ReninRenin-Angiotensin SystemConceptsCardiac mast cellsAnti-RA effectRenin-angiotensin systemAldehyde dehydrogenase type 2Ischemic preconditioningIschemia/reperfusionMast cellsRenin releaseALDH2 activationReperfusion arrhythmiasNorepinephrine releaseRas activationHMC-1Local renin-angiotensin systemBlockade of adenosineLocal RAS activationClassic ischemic preconditioningDehydrogenase type 2New therapeutic targetsCultured mast cellsPKCepsilon inhibitionFibrillation durationMyocardial ischemiaVentricular tachycardiaHearts ex vivoInteraction between Sensory C-fibers and Cardiac Mast Cells in Ischemia/Reperfusion: Activation of a Local Renin-Angiotensin System Culminating in Severe Arrhythmic Dysfunction
Morrey C, Brazin J, Seyedi N, Corti F, Silver RB, Levi R. Interaction between Sensory C-fibers and Cardiac Mast Cells in Ischemia/Reperfusion: Activation of a Local Renin-Angiotensin System Culminating in Severe Arrhythmic Dysfunction. Journal Of Pharmacology And Experimental Therapeutics 2010, 335: 76-84. PMID: 20668055, PMCID: PMC2957783, DOI: 10.1124/jpet.110.172262.Peer-Reviewed Original ResearchMeSH KeywordsAldehydesAnimalsArrhythmias, Cardiacbeta-N-AcetylhexosaminidasesCalcitonin Gene-Related PeptideCell DegranulationCells, CulturedFluorescent Antibody TechniqueGuinea PigsIn Vitro TechniquesMaleMast CellsMyocardial Reperfusion InjuryMyocardiumNerve EndingsNerve Fibers, UnmyelinatedNorepinephrineReninRenin-Angiotensin SystemSensory Receptor CellsSubstance PSynaptosomesConceptsRenin-angiotensin systemIschemia/reperfusionCardiac mast cellsSubstance P receptor blockadeLocal renin-angiotensin systemSubstance PMast cellsSensory nervesCultured mast cellsRenin releaseReceptor blockadeCardiac dysfunctionLocal cardiac renin-angiotensin systemCardiac renin-angiotensin systemCardiac nerve terminalsCardiac sensory nervesMast cell reninSubstance P releaseSensory C-fibersMast cell stabilizationSubstance P receptorCardiac synaptosomesReperfusion arrhythmiasNorepinephrine overflowAngiotensin production
2008
Effects of 4′-chlorodiazepam on cellular excitation–contraction coupling and ischaemia–reperfusion injury in rabbit heart
Brown DA, Aon MA, Akar FG, Liu T, Sorarrain N, O’Rourke B. Effects of 4′-chlorodiazepam on cellular excitation–contraction coupling and ischaemia–reperfusion injury in rabbit heart. Cardiovascular Research 2008, 79: 141-149. PMID: 18304929, PMCID: PMC2562874, DOI: 10.1093/cvr/cvn053.Peer-Reviewed Original ResearchConceptsIschaemia-reperfusion injuryExcitation-contraction couplingReperfusion arrhythmiasRabbit heartsDose-dependent negative inotropic responseCellular excitation-contraction couplingPost-ischemic cardiac dysfunctionOnset of reperfusionMin of reperfusionSingle bolus doseNegative inotropic responseIschaemia/reperfusionIntracellular calcium transientsSarcolemmal ion channelsIsolated rabbit cardiomyocytesIon channelsCardiac action potentialContractile impairmentCardiac dysfunctionBolus doseContractile dysfunctionInotropic responseGlobal ischaemiaVoltage clamp methodCalcium current
2005
The mitochondrial origin of postischemic arrhythmias
Akar FG, Aon MA, Tomaselli GF, O'Rourke B. The mitochondrial origin of postischemic arrhythmias. Journal Of Clinical Investigation 2005, 115: 3527-3535. PMID: 16284648, PMCID: PMC1280968, DOI: 10.1172/jci25371.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsAnionsArrhythmias, CardiacDose-Response Relationship, DrugElectrophysiologyGuinea PigsHeartIntracellular MembranesIon ChannelsIschemiaMembrane PotentialsMicroscopy, ConfocalMitochondria, HeartMyocardial IschemiaMyocardial ReperfusionMyocardial Reperfusion InjuryMyocardiumMyocytes, CardiacOscillometryReactive Oxygen SpeciesReceptors, GABA-AReperfusion InjuryTemperatureTime FactorsConceptsAction potentialsVentricular fibrillationPostischemic functional recoveryIschemic heart diseaseGuinea pig heartsNew therapeutic targetsAbnormal electrical activationPostischemic arrhythmiasReperfusion arrhythmiasFunctional recoveryGlobal ischemiaHeart diseaseBolus infusionArrhythmia preventionElectrophysiological changesAP shorteningControl heartsPostischemic heartsBenzodiazepine receptorsElectrophysiological substrateTherapeutic targetArrhythmiasReperfusionPig heartsMitochondrial benzodiazepine receptor
1991
Reperfusion arrhythmias after thrombolysis. Electrophysiologic tempest, or much ado about nothing.
Krumholz HM, Goldberger AL. Reperfusion arrhythmias after thrombolysis. Electrophysiologic tempest, or much ado about nothing. CHEST Journal 1991, 99: 135s-140s. PMID: 2009810, DOI: 10.1378/chest.99.4.135s.Peer-Reviewed Original ResearchConceptsThrombolytic therapyMyocardial infarctionAcute myocardial infarctionSignificant clinical interestReperfusion arrhythmiasSuccessful reperfusionMyocardial reperfusionIdioventricular rhythmClinical eventsVentricular tachyarrhythmiasNoninvasive markerAnimal studiesArrhythmiasConsistent markerReperfusionClinical interestInfarctionTherapyCurrent dataMarkersThrombolysisTachyarrhythmias
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