0000000000874124

AUTHOR

Magdi H. Yacoub

showing 2 related works from this author

Carbon monoxide improves cardiac energetics and safeguards the heart during reperfusion after cardiopulmonary bypass in pigs

2004

Ischemia-reperfusion injury, a clinical problem during cardiac surgery, involves worsened adenosine trisphosphate (ATP) generation and damage to the heart. We studied carbon monoxide ( CO) pretreatment, proven valuable in rodents but not previously tested in large animals, for its effects on pig hearts subjected to cardiopulmonary bypass with cardioplegic arrest. Hearts of CO-treated pigs showed significantly higher ATP and phosphocreatine levels, less interstitial edema, and apoptosis of cardiomyocytes and required fewer defibrillations after bypass. We conclude that treatment with CO improves the energy status, prevents edema formation and apoptosis, and facilitates recovery in a clinical…

Sus scrofaMyocardial IschemiaApoptosisCardiotonic AgentsBiochemistrylaw.inventionchemistry.chemical_compoundAdenosine Triphosphateischemia reperfusion; heart arrest; apoptosis; hypoxia; Adenosine Diphosphate; Adenosine Monophosphate; Adenosine Triphosphate; Animals; Apoptosis; Carbon Monoxide; Cardiotonic Agents; Edema; Electric Countershock; Energy Metabolism; Female; Guanosine Triphosphate; Heart; Myocardial Ischemia; Myocardial Reperfusion Injury; Myocytes Cardiac; NAD; NADP; Oxidation-Reduction; Sus scrofa; Cardiopulmonary BypasslawEdemaEdemaMyocytes CardiacCarbon MonoxideCardiopulmonary BypassMED/04 - PATOLOGIA GENERALEHeartCardiac surgeryAdenosine DiphosphateAnesthesiaCardiologyFemaleGuanosine Triphosphatemedicine.symptomCardiacOxidation-ReductionBiotechnologymedicine.drugischemia reperfusion; heart arrest; apoptosis; hypoxiaAdenosine monophosphatemedicine.medical_specialtyCardiotonic AgentsElectric CountershockMyocardial Reperfusion InjuryPhosphocreatineInternal medicineGeneticsmedicineCardiopulmonary bypassischemia reperfusionAnimalsMolecular BiologyMyocytesbusiness.industryhypoxiaNADAdenosineapoptosiAdenosine MonophosphateAdenosine diphosphatechemistryEnergy MetabolismbusinessNADPheart arrest
researchProduct

Hypertrophic agonists induce the binding of c-Fos to an AP-1 site in cardiac myocytes: implications for the expression of GLUT1

2003

Objectives: Serum is among the agents known to induce hypertrophy of cardiac myocytes, which occurs concomitant with an increase in AP-1-mediated transcription. We have examined if this effect correlates with changes in the relative abundance of particular AP-1 heterodimers, as their exact composition under these conditions is unknown. Furthermore, we obtained insight on the specific role of c-Fos from studying the induction of the glucose transporter GLUT1 by serum in fibroblasts. Methods: We characterised the AP-1 heterodimers expressed in neonatal cardiac myocytes by supershift electrophoretic mobility shift assay (EMSA) analysis. Quantitative changes in transcription were measured using…

Monosaccharide Transport ProteinsTranscription GeneticMAP Kinase Signaling SystemPyridinesPhysiologyJUNBBlotting WesternElectrophoretic Mobility Shift Assayc-FosCell LineMicePhysiology (medical)Gene expressionAnimalsMyocyteMyocytes CardiacElectrophoretic mobility shift assayCells CulturedFlavonoidsGlucose Transporter Type 1biologyImidazolesGlucose transporterFibroblastsMolecular biologyRatsEnzyme ActivationTranscription Factor AP-1Animals Newbornbiology.proteinGLUT1Mitogen-Activated Protein KinasesCardiology and Cardiovascular MedicineProto-Oncogene Proteins c-fosGene DeletionProtein BindingFOSBCardiovascular Research
researchProduct