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
2007
Nitrosative Stress and Myocardial Sarcoplasmic Endoreticular Calcium Adenosine Triphosphatase Subtype 2a Activity after Lung Resection in Swine
Heerdt PM, Lane P, Pan BY, Schaefer U, Crabtree M, Hong R, Singer AA, Levi R, Park BJ. Nitrosative Stress and Myocardial Sarcoplasmic Endoreticular Calcium Adenosine Triphosphatase Subtype 2a Activity after Lung Resection in Swine. Anesthesiology 2007, 107: 954-962. PMID: 18043064, DOI: 10.1097/01.anes.0000291446.70921.61.Peer-Reviewed Original ResearchConceptsNitrosative stressForce-frequency relationLung resectionSERCA2a activityAcute oxidative stressOxidative stressPhosphorylation stateSubcellular processesBiochemical basisProtein phospholambanDisease-associated oxidative stressRegulatory protein phospholambanPhospholamban phosphorylationReticular membranesProtein expressionImpaired calcium cyclingPhosphorylationWestern blottingExpressionPerioperative changesUpper lobectomyPhospholamban expressionSham groupAcute eventChronic illness
2005
Anesthetic-Induced Alteration in Expression of Myocardial Calcium Cycling Proteins
Heerdt PM, H.S. The A, Markov NP. Anesthetic-Induced Alteration in Expression of Myocardial Calcium Cycling Proteins. Journal Of Cardiothoracic And Vascular Anesthesia 2005, 19: 340-344. PMID: 16130061, DOI: 10.1053/j.jvca.2005.02.007.Peer-Reviewed Original ResearchConceptsCalcium cycling proteinsCycling proteinsSarcolemmal sodium-calcium exchangerMolecular remodelingInduction of anesthesiaNew Zealand white rabbitsEnd-tidal halothaneGroups of rabbitsZealand white rabbitsSodium-calcium exchangerHalothane doseWestern blot analysisPerioperative interventionsTracheal intubationUniversity research laboratorySubtype 2aPrior treatmentWhite rabbits