HemodynamicsRenal CirculationKidneyGlomerular Filtration RateVascular ResistanceBlood PressureDiuresisNatriuresisRenal Plasma FlowReninDogsRegional Blood FlowKidney Function TestsRenal ArteryCardiac OutputKidney GlomerulusAngiotensin IIMeclofenamic AcidSodiumRussell's ViperHypertensionNG-Nitroarginine Methyl EsterSodium, DietaryHypertension, MalignantKidney TubulesHypertension, RenovascularDiet, Sodium-RestrictedHeart RateNitric OxideRenal VeinsHypertension, RenalNicardipineRats, Sprague-DawleyProstaglandinsProstaglandin AntagonistsHematocritEnalaprilTetrazolesProteinuriaInulinRenin-Angiotensin SystemArginineAnesthesiaAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsRats, Inbred SHRAldosteroneBlood Flow VelocityAtrial Natriuretic FactorUrineRenal Artery ObstructionLithiumWater-Electrolyte BalanceMicrocirculationAlbuminuriaKidney DiseasesNitric Oxide SynthaseCalcium Channel BlockersThromboxane B2Angiotensin Receptor AntagonistsSodium Chloride, DietaryInfusions, IntravenousFurosemideElectrolytesBiphenyl CompoundsEndothelin-1Cyclic N-OxidesNifedipineKidney CortexSodium ChlorideVasoconstrictionEndothelinsEnzyme InhibitorsIndomethacinReference Valuesomega-N-MethylarginineRats, Inbred StrainsCross-Over StudiesXanthinesPotassiumTime FactorsNorepinephrineCerebrovascular CirculationVasoconstrictor AgentsDose-Response Relationship, DrugModels, CardiovascularBenzimidazolesDisease Models, AnimalAngiotensin II Type 1 Receptor BlockersLosartanPulmonary CirculationNitritesRats, WistarVasodilationKidney Tubules, ProximalNitratesCreatinineHypertension, PulmonaryDiabetic NephropathiesDouble-Blind Method