Hypoxia-Ischemia, BrainHypoxia, BrainAnoxiaAnimals, NewbornIschemiaBrain IschemiaCell HypoxiaBrainPia MaterHypercapniaNeuroprotective AgentsBrain InjuriesMyocardial IschemiaHypotensionBrain Damage, ChronicAsphyxia NeonatorumCerebral PalsyCerebrovascular CirculationInfant, PrematureRats, Sprague-DawleyCell DeathDisease Models, AnimalRats, WistarInfant, NewbornBrain DiseasesNeuronsReperfusion InjuryOxygenFetal HypoxiaBrain ChemistryMyocardial Reperfusion InjuryHypoxia-Inducible Factor 1, alpha SubunitIschemic Attack, TransientTime FactorsReperfusionWarm IschemiaBrain NeoplasmsIschemic PreconditioningMyocardiumHypoxia-Inducible Factor 1Brain EdemaGerbillinaeCold IschemiaSpinal Cord IschemiaBrain MappingIschemic Preconditioning, MyocardialInfarction, Middle Cerebral ArteryCerebral CortexMyocardial ReperfusionHeartRNA, MessengerCerebral InfarctionMice, Inbred C57BLCells, CulturedHippocampusHindlimbMagnetic Resonance ImagingPerfusionCoronary CirculationAltitude