LosartanAngiotensin Receptor AntagonistsAngiotensin IIReceptor, Angiotensin, Type 1Angiotensin II Type 1 Receptor BlockersBiphenyl CompoundsReceptors, AngiotensinReceptor, Angiotensin, Type 2TetrazolesImidazolesAntihypertensive Agents1-Sarcosine-8-Isoleucine Angiotensin IIAngiotensin II Type 2 Receptor BlockersAngiotensin IRats, Sprague-DawleyPyridinesAngiotensin-Converting Enzyme InhibitorsRenin-Angiotensin SystemBlood PressureEnalaprilVasoconstrictor AgentsCaptoprilAngiotensin IIIKidneyRats, WistarHypertensionDose-Response Relationship, DrugReninPeptidyl-Dipeptidase ARamiprilHydralazineCells, CulturedRats, Inbred SHROligopeptidesSympathetic Nervous SystemDiabetic NephropathiesParaventricular Hypothalamic NucleusMuscle, Smooth, VascularRats, Inbred WKYHormone AntagonistsVasoconstrictionDouble-Blind MethodAorta, ThoracicDopamine AntagonistsNitric OxideHeart RateExcitatory Amino Acid AntagonistsNeurokinin-1 Receptor AntagonistsRNA, MessengerEnzyme InhibitorsNarcotic AntagonistsHistamine H2 AntagonistsMyocardiumInterleukin 1 Receptor Antagonist ProteinTime FactorsMuscarinic AntagonistsSignal TransductionPeptide FragmentsGABA AntagonistsHistamine H1 AntagonistsPurinergic P1 Receptor AntagonistsPiperidinesHistamine AntagonistsNicotinic AntagonistsAdenosine A2 Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsPurinergic P2 Receptor AntagonistsSerotonin 5-HT3 Receptor AntagonistsAtenololSerotonin 5-HT2 Receptor AntagonistsBenzimidazolesAmlodipineAdenosine A1 Receptor AntagonistsHydrochlorothiazideLeukotriene AntagonistsCalcium Channel BlockersReceptors, EndothelinRadioligand AssayAdrenergic alpha-2 Receptor AntagonistsAdrenergic AntagonistsGABA-A Receptor AntagonistsAdrenergic alpha-AntagonistsDrug InteractionsAdrenergic beta-Antagonists