Mesenteric ArteriesMesenteric Artery, SuperiorIschemiaMesenteric Artery, InferiorArteriesMyocardial IschemiaBrain IschemiaMesenteric Vascular OcclusionCeliac ArterySuperior Mesenteric Artery SyndromePulmonary ArteryRenal ArteryCerebral ArteriesFemoral ArteryReperfusion InjuryVasodilationCarotid ArteriesMuscle, Smooth, VascularVasoconstrictionSplanchnic CirculationBasilar ArteryMesenteric VeinsRats, WistarVasodilator AgentsBiological FactorsVasoconstrictor AgentsRats, Sprague-DawleyIliac ArteryEndothelium, VascularSplenic ArteryTime FactorsNorepinephrineCoronary Artery BypassHepatic ArteryVertebral ArteryPhenylephrineRadial ArteryMyographyCoronary VesselsBlood PressureAcetylcholineMammary ArteriesCarotid Artery, InternalAngiographySubclavian ArteryNitric OxideDose-Response Relationship, DrugTomography, X-Ray ComputedIschemic Attack, TransientMyocardial Reperfusion InjuryDuodenostomyDisease Models, AnimalArterial Occlusive DiseasesDogsRats, Inbred WKYRegional Blood FlowCarotid Artery DiseasesMuscle ContractionMuscle RelaxationBrachial ArteryInfarction, Middle Cerebral ArteryReperfusionRabbitsCarotid Artery, CommonSuperior ColliculiRats, Inbred SHRVena Cava, SuperiorEndothelium-Dependent Relaxing FactorsAneurysmMiddle Cerebral ArteryHemodynamicsWarm IschemiaNG-Nitroarginine Methyl EsterConstriction, PathologicCoronary DiseaseRenal Artery ObstructionTreatment OutcomeEnzyme InhibitorsPotassium ChlorideStentsOphthalmic ArteryPopliteal Artery15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidCharybdotoxinNitric Oxide SynthaseIschemic PreconditioningCerebrovascular CirculationCoronary CirculationMyocardiumCoronary AngiographyVascular Surgical ProceduresCalciumUltrasonography, DopplerThoracic ArteriesBlood Vessel Prosthesis ImplantationUmbilical ArteriesIndomethacinLigationNitroprussideGerbillinae