2018
Acute Left Ventricular Unloading Reduces Atrial Stretch and Inhibits Atrial Arrhythmias
Ishikawa K, Watanabe S, Lee P, Akar FG, Lee A, Bikou O, Fish K, Kho C, Hajjar RJ. Acute Left Ventricular Unloading Reduces Atrial Stretch and Inhibits Atrial Arrhythmias. Journal Of The American College Of Cardiology 2018, 72: 738-750. PMID: 30092950, PMCID: PMC6160394, DOI: 10.1016/j.jacc.2018.05.059.Peer-Reviewed Original ResearchConceptsLV end-diastolic pressureEnd-diastolic pressureLV unloadingMyocardial infarctionSubacute myocardial infarctionPressure-volume loopsLA pressureAortic regurgitationRyanodine receptor phosphorylationLA tissuesLV loadingReduced LV ejection fractionAtrial arrhythmia inducibilityLV assist deviceLV ejection fractionMean LA pressureLeft ventricular performancePressure-volume catheterMaximum LA volumeLV loading conditionsReceptor phosphorylationMedian 55NOX2 levelsArrhythmia inducibilityAtrial stretch
2017
Protein Phosphatase Inhibitor-1 Gene Therapy in a Swine Model of Nonischemic Heart Failure
Watanabe S, Ishikawa K, Fish K, Oh JG, Motloch LJ, Kohlbrenner E, Lee P, Xie C, Lee A, Liang L, Kho C, Leonardson L, McIntyre M, Wilson S, Samulski RJ, Kranias EG, Weber T, Akar FG, Hajjar RJ. Protein Phosphatase Inhibitor-1 Gene Therapy in a Swine Model of Nonischemic Heart Failure. Journal Of The American College Of Cardiology 2017, 70: 1744-1756. PMID: 28958332, PMCID: PMC5807083, DOI: 10.1016/j.jacc.2017.08.013.Peer-Reviewed Original ResearchConceptsNonischemic heart failureHeart failureEjection fractionIntracoronary deliveryTherapeutic efficacyLeft ventricular end-diastolic pressureDp/dt maximumLeft ventricular ejection fractionVentricular end-diastolic pressureVolume overload heart failureAdverse electrical remodelingIschemic heart failureVentricular ejection fractionVentricular volume indexAtrial ejection fractionEnd-diastolic pressureSevere mitral regurgitationCellular immune responsesCalcium transient amplitudeLarge animal modelGene therapyActive inhibitor-1Improved contractilityInhibitor-1 geneCardiac dysfunction