Vasodilator AgentsDiureticsPapaverineNitroprussideVasodilationAcetylcholineVascular ResistanceSodium Chloride Symporter InhibitorsFurosemideHydrochlorothiazideDiuresisSodium Potassium Chloride Symporter InhibitorsBenzothiadiazinesChlorothiazideAntihypertensive AgentsNitric OxideBlood PressureChlorthalidoneTriamtereneRegional Blood FlowHypertensionBendroflumethiazideMetolazoneNitroglycerinHemodynamicsForearmTrichlormethiazideHydralazineBumetanideEndothelium, VascularEthacrynic AcidVasoconstrictionBradykininHeart FailureMalpighian TubulesNG-Nitroarginine Methyl EsterEpoprostenolDose-Response Relationship, DrugAngiotensin-Converting Enzyme InhibitorsIndapamideNatriuresisHypokalemiaDogsVasoconstrictor AgentsCalcitonin Gene-Related PeptidePotassiumKidneyAdrenergic beta-AntagonistsMesenteric ArteriesUricosuric AgentsSpironolactoneHypertension, PulmonaryRenal CirculationHyperemiaCoronary CirculationPulmonary CirculationSodiumDrug Therapy, CombinationAdenosineThiazidesCoronary VesselsVasomotor SystemMinoxidilSplanchnic Circulationomega-N-MethylarginineNitric Oxide SynthaseOrganomercury CompoundsIsosorbide DinitrateMuscle, Smooth, VascularArginineAdrenomedullinIndomethacinHeart RateArteriolesRadioisotope RenographyEndothelium-Dependent Relaxing FactorsPlethysmographySodium Chloride SymportersRats, Sprague-DawleyCyclic GMPNorepinephrineTechnetium Tc 99m MertiatideProstaglandinsCaptoprilReninCromakalimArteriesHydronephrosisRats, WistarNitroarginineCyclopenthiazideDipyridamoleEnzyme InhibitorsAtrial Natriuretic FactorPulmonary ArteryNicardipineBiological FactorsDouble-Blind MethodClopamideMicrocirculation