Hypoxia-Ischemia, BrainAnoxiaAnimals, NewbornHypoxia, BrainIschemiaPlethysmography, Whole BodyBrain IschemiaCell HypoxiaPia MaterNeuroprotective AgentsHypercapniaRats, Sprague-DawleyBrain Damage, ChronicHypotensionBrainMyocardial IschemiaCerebrovascular CirculationDisease Models, AnimalRats, WistarCell DeathNeuronsReperfusion InjuryDNA DamageBrain InjuriesFetal HypoxiaOxygenIschemic Attack, TransientBrain ChemistryTime FactorsReperfusionMyocardial Reperfusion InjuryBrain EdemaHypoxia-Inducible Factor 1, alpha Subunit