Blood PressureBlood VesselsPressureBlood Pressure DeterminationHypertensionBlood Pressure Monitoring, AmbulatoryHeart RateAntihypertensive AgentsHydrostatic PressureBlood Pressure MonitorsSystoleRetinal VesselsLymphatic VesselsHemodynamicsTime FactorsVascular ResistanceRats, Inbred SHRArteriesDiastoleHypotensionEndothelium, VascularIntracranial PressureReninIntraocular PressureArterial PressureRegional Blood FlowPulseCoronary VesselsNeovascularization, PhysiologicTransducers, PressureSympathetic Nervous SystemKidneyAortaCardiovascular SystemNeovascularization, PathologicRats, Inbred WKYCircadian RhythmRats, Sprague-DawleyCardiovascular DiseasesVasodilationAtmospheric PressureProspective StudiesVenous PressureVasoconstrictionBlood Flow VelocityNorepinephrineSphygmomanometersAir PressureRisk FactorsAngiotensin IIHypertension, RenalDogsBaroreflexSodium Chloride, DietaryDisease Models, AnimalFollow-Up StudiesBody WeightDose-Response Relationship, DrugAngiotensin-Converting Enzyme InhibitorsVasoconstrictor AgentsDiet, Sodium-RestrictedMuscle, Smooth, VascularEndothelial CellsSodium, DietaryVentricular PressureCardiac OutputAnalysis of VarianceBody Mass IndexReference ValuesRenin-Angiotensin SystemPressoreceptorsVasodilator AgentsTreatment OutcomeCarotid ArteriesRats, WistarCentral Venous PressureDouble-Blind MethodCerebrovascular CirculationNitric OxideCross-Sectional StudiesCardiovascular Physiological PhenomenaRegression AnalysisVascular Endothelial Growth Factor AModels, CardiovascularCapillariesImmunohistochemistryAldosteroneAge FactorsHydrochlorothiazidePhenylephrineHeartComplianceTelemetryArteriolesMesenteric ArteriesAgingCohort StudiesPulmonary Wedge PressureAorta, ThoracicAutonomic Nervous System