2012
GSH or Palmitate Preserves Mitochondrial Energetic/Redox Balance, Preventing Mechanical Dysfunction in Metabolically Challenged Myocytes/Hearts From Type 2 Diabetic Mice
Tocchetti CG, Caceres V, Stanley BA, Xie C, Shi S, Watson WH, O’Rourke B, Spadari-Bratfisch RC, Cortassa S, Akar FG, Paolocci N, Aon MA. GSH or Palmitate Preserves Mitochondrial Energetic/Redox Balance, Preventing Mechanical Dysfunction in Metabolically Challenged Myocytes/Hearts From Type 2 Diabetic Mice. Diabetes 2012, 61: 3094-3105. PMID: 22807033, PMCID: PMC3501888, DOI: 10.2337/db12-0072.Peer-Reviewed Original ResearchConceptsMechanical dysfunctionReactive oxygen speciesType 2 diabetic db/db miceDiabetic db/db miceHigh glucoseType 2 diabetic patientsType 2 diabetic miceDb/db miceLower cardiac performanceLimited exercise capacityPoor glycemic controlType 2 diabetesΒ-agonist isoproterenolCardiac work demandsFatty acid palmitateExercise capacitySympathetic driveGlycemic controlDiabetic patientsDiabetic miceDb miceHeart dysfunctionPatient's inabilityMitochondrial reactive oxygen speciesHeart preparation
2008
Targeted deletion of kcne2 impairs ventricular repolarization via disruption of IK,slow1 and Ito,f
Roepke TK, Kontogeorgis A, Ovanez C, Xu X, Young JB, Purtell K, Goldstein PA, Christini DJ, Peters NS, Akar FG, Gutstein DE, Lerner DJ, Abbott GW. Targeted deletion of kcne2 impairs ventricular repolarization via disruption of IK,slow1 and Ito,f. The FASEB Journal 2008, 22: 3648-3660. PMID: 18603586, PMCID: PMC2537427, DOI: 10.1096/fj.08-110171.Peer-Reviewed Original ResearchConceptsAlpha subunitKv4 alpha subunitsAction potential durationVentricular action potential durationFunctional promiscuityVentricular membrane fractionsLong QT syndromeVentricular repolarizationAncillary subunitsWild typeNovel roleMembrane fractionKcne2 deletionKv1.5 proteinTargeted deletionSubunitsKcne2 disruptionMiRP1Cardiac roleProteinKCNE2DeletionKv1.5Sevoflurane anesthesiaDisruption
2005
Molecular mechanisms underlying K+ current downregulation in canine tachycardia-induced heart failure
Akar FG, Wu RC, Juang GJ, Tian Y, Burysek M, DiSilvestre D, Xiong W, Armoundas AA, Tomaselli GF. Molecular mechanisms underlying K+ current downregulation in canine tachycardia-induced heart failure. AJP Heart And Circulatory Physiology 2005, 288: h2887-h2896. PMID: 15681701, DOI: 10.1152/ajpheart.00320.2004.Peer-Reviewed Original Research