Cyclic GMPCyclic AMPAdenosineGuanosine Monophosphate8-Bromo Cyclic Adenosine MonophosphateGuanylate CyclasePhosphodiesterase InhibitorsAtrial Natriuretic FactorPhosphodiesterase 5 InhibitorsNitric OxideBucladesine3',5'-Cyclic-GMP PhosphodiesterasesSulfonesNucleotides, CyclicAdenosine MonophosphatePurinonesPurinesCyclic GMP-Dependent Protein KinasesGuanosineDibutyryl Cyclic GMP1-Methyl-3-isobutylxanthineCyclic Nucleotide Phosphodiesterases, Type 5Methylene BlueNitroprussideCyclic Nucleotide Phosphodiesterases, Type 2ColforsinPhosphoric Diester HydrolasesNelumboTheophyllineSecond Messenger SystemsNitric Oxide DonorsReceptors, Atrial Natriuretic FactorDose-Response Relationship, DrugCells, Cultured3',5'-Cyclic-AMP PhosphodiesterasesReceptor, Adenosine A2ASignal TransductionPenisAdenylate CyclasePenile ErectionGMP ReductaseCyclic AMP-Dependent Protein KinasesMuscle RelaxationNitric Oxide SynthasePiperazinesErectile DysfunctionReceptor, Adenosine A1Vasodilator AgentsEtretinateRats, Sprague-DawleyMuscle, Smooth, VascularArginineCyclic GMP-Dependent Protein Kinase Type ICalciumAorta, ThoracicEnzyme InhibitorsCyclic Nucleotide Phosphodiesterases, Type 6Adenosine DeaminaseCyclic AMP Response Element-Binding ProteinIsoproterenolPhosphodiesterase 4 InhibitorsKineticsRabbitsNatriuretic Peptide, C-TypeVasodilationTime FactorsNitritesRats, Inbred StrainsEnzyme ActivationRolipramFerricyanidesReceptors, Purinergic P1Receptor, Adenosine A3omega-N-MethylarginineEndothelium, VascularAnthralinPhosphorylationReceptors, Adrenergic, betaAdenosine KinaseGuanosine 5'-O-(3-Thiotriphosphate)NorepinephrineAdenosine-5'-(N-ethylcarboxamide)Adenine NucleotidesReceptor, Adenosine A2BNatriuresisPhenylisopropyladenosineBlood PlateletsStimulation, ChemicalNG-Nitroarginine Methyl EsterMuscle, SmoothNatriuretic Peptide, BrainNitric Oxide Synthase Type IIIGuanosine TriphosphateCyclic Nucleotide Phosphodiesterases, Type 4Cholera ToxinReceptors, Adenosine A2Disease Models, AnimalInosine MonophosphateKidneyRats, Wistar