Heart InjuriesChagas CardiomyopathyMyocardial Reperfusion InjuryMyocardiumHeartWounds and InjuriesHeart RateBrain InjuriesReperfusion InjuryAthletic InjuriesSpinal Cord InjuriesHeart FailureMyocytes, CardiacFetal HeartHeart DiseasesHeart TransplantationMyocardial ContractionHeart Defects, CongenitalMice, Inbred C57BLInjury Severity ScoreLeg InjuriesLung InjuryHeart ValvesDisease Models, AnimalHeart AtriaMice, TransgenicEye InjuriesMyocardial IschemiaTime FactorsAcute Lung InjuryPerfusionNeck InjuriesCardiomegalyCardiotonic AgentsMice, Knockout