Basilar ArteryEndothelium, VascularVasodilationMuscle RelaxationVasodilator AgentsAcetylcholineNitroglycerinArteriesNitroprussideNitric OxideVasoconstrictionEndotheliumBrachial ArteryVasoconstrictor AgentsMuscle, Smooth, VascularRegional Blood FlowMyeloid Differentiation Factor 88Nitric Oxide SynthaseDose-Response Relationship, DrugTumor Suppressor Protein p53Vertebrobasilar InsufficiencyMice, KnockoutCells, CulturedEndothelium, CornealSignal TransductionMice, Inbred C57BLCalciumCerebral ArteriesVertebral ArteryDNA DamagePulmonary ArteryMesenteric ArteriesCell LineCarotid ArteriesApoptosisSubarachnoid HemorrhageRabbitsBrain Stem InfarctionsMuscle ContractionFemoral ArteryRenal ArteryCerebral AngiographyVasospasm, IntracranialDogsCoronary VesselsPotassium ChlorideNitroarginineAorta, ThoracicTime FactorsEnzyme InhibitorsEndothelial CellsEndothelium, LymphaticSerotoninAortaBiological FactorsRats, Sprague-DawleyIliac ArteryCell AdhesionCarotid Artery, InternalNG-Nitroarginine Methyl EsterMammary ArteriesIntracranial AneurysmIndomethacinRelaxationRelaxation TherapyCoronary Artery BypassRadial Artery15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidCerebrovascular CirculationNitric Oxide Synthase Type IIISwinePapaverineArginineRats, WistarBradykininArterial Occlusive DiseasesNorepinephrineVasomotor SystemCarotid Artery DiseasesMiddle Cerebral ArteryCyclic GMPMagnetic Resonance AngiographyMesenteric Artery, SuperiorDisease Models, AnimalSubclavian ArteryRats, Inbred WKYCharybdotoxinMuscle TonusSumatriptanPhenylephrineMuscle, SmoothMolecular Sequence DataKineticsTomography, X-Ray ComputedMethylene BlueCarotid Artery, CommonHepatic ArteryOxadiazolesPicolinesRNA, Messenger