2005
Dual Mechanisms Regulating AMPK Kinase Action in the Ischemic Heart
Baron SJ, Li J, Russell RR, Neumann D, Miller EJ, Tuerk R, Wallimann T, Hurley RL, Witters LA, Young LH. Dual Mechanisms Regulating AMPK Kinase Action in the Ischemic Heart. Circulation Research 2005, 96: 337-345. PMID: 15653571, DOI: 10.1161/01.res.0000155723.53868.d2.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine MonophosphateAdenosine TriphosphateAminoimidazole CarboxamideAMP-Activated Protein Kinase KinasesAMP-Activated Protein KinasesAnimalsInfusions, IntravenousMaleMultienzyme ComplexesMyocardial IschemiaMyocardiumPhosphorylationProtein KinasesProtein Serine-Threonine KinasesRatsRats, Sprague-DawleyRecombinant ProteinsRibonucleotidesConceptsRecombinant AMPKAMPKK activityAMPK phosphorylationPhosphorylation of Thr172Gamma regulatory subunitsIschemic heartImportant signaling proteinAlpha catalytic subunitRat heartHeterotrimeric AMPKAMPKKHeterotrimeric complexActivation loopRegulatory subunitKinase actionSignaling proteinsCatalytic subunitProtein kinaseAMPK activityLow-flow ischemiaGamma subunitsAMPKInteraction of AMPPhosphorylationAddition of AMP
2004
AMP-activated protein kinase mediates ischemic glucose uptake and prevents postischemic cardiac dysfunction, apoptosis, and injury
Russell RR, Li J, Coven DL, Pypaert M, Zechner C, Palmeri M, Giordano FJ, Mu J, Birnbaum MJ, Young LH. AMP-activated protein kinase mediates ischemic glucose uptake and prevents postischemic cardiac dysfunction, apoptosis, and injury. Journal Of Clinical Investigation 2004, 114: 495-503. PMID: 15314686, PMCID: PMC503766, DOI: 10.1172/jci19297.Peer-Reviewed Original ResearchConceptsLow-flow ischemiaGlucose uptakePostischemic reperfusionWT heartsLeft ventricular dPNormal fractional shorteningLV contractile functionPostischemic cardiac dysfunctionInsulin-stimulated glucose uptakeImportant protective roleLong-term inhibitionFatty acid oxidationFractional shorteningHeart failureVentricular dPCardiac consequencesCardiac dysfunctionCaspase-3 activityMyocardial ischemiaContractile functionReperfusionCardiac hypertrophyIschemiaTransgenic miceProtective role
2002
Correlation of myocardial p-(123)I-iodophenylpentadecanoic acid retention with (18)F-FDG accumulation during experimental low-flow ischemia.
Shi CQ, Young LH, Daher E, DiBella EV, Liu YH, Heller EN, Zoghbi S, Wackers FJ, Soufer R, Sinusas AJ. Correlation of myocardial p-(123)I-iodophenylpentadecanoic acid retention with (18)F-FDG accumulation during experimental low-flow ischemia. Journal Of Nuclear Medicine 2002, 43: 421-31. PMID: 11884504.Peer-Reviewed Original Research
1997
Low-flow ischemia leads to translocation of canine heart GLUT-4 and GLUT-1 glucose transporters to the sarcolemma in vivo.
Young L, Renfu Y, Russell R, Hu X, Caplan M, Ren J, Shulman G, Sinusas A. Low-flow ischemia leads to translocation of canine heart GLUT-4 and GLUT-1 glucose transporters to the sarcolemma in vivo. Circulation 1997, 95: 415-22. PMID: 9008459, DOI: 10.1161/01.cir.95.2.415.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological TransportDogsFluorescent Antibody TechniqueGlucose Transporter Type 1Glucose Transporter Type 4HeartIntracellular MembranesMonosaccharide Transport ProteinsMuscle ProteinsMyocardial IschemiaMyocardiumRegional Blood FlowSarcolemmaSubcellular FractionsTissue Distribution
1996
Glucose metabolism distal to a critical coronary stenosis in a canine model of low-flow myocardial ischemia.
McNulty PH, Sinusas AJ, Shi CQ, Dione D, Young LH, Cline GC, Shulman GI. Glucose metabolism distal to a critical coronary stenosis in a canine model of low-flow myocardial ischemia. Journal Of Clinical Investigation 1996, 98: 62-69. PMID: 8690805, PMCID: PMC507401, DOI: 10.1172/jci118778.Peer-Reviewed Original ResearchConceptsLow-flow ischemiaCoronary stenosisIschemic myocardiumIschemic regionLow-flow myocardial ischemiaCritical coronary stenosisExogenous glucoseOxidative substrateMyocardial ischemiaIntact dogsGlucose metabolismNonischemic regionsClinical observationsCanine modelGlucose utilizationIschemiaBiochemical measurementsMyocardial regionsRate of incorporationIntracellular metabolismTricarboxylic acid cycle fluxStenosisMyocardiumGlucoseGlucose-derived pyruvate