8-Bromo Cyclic Adenosine MonophosphateCyclic GMPCyclic AMPAdenosineGuanosine MonophosphateGuanylate CyclaseAtrial Natriuretic FactorBucladesinePhosphodiesterase InhibitorsNitric OxidePhosphodiesterase 5 InhibitorsNucleotides, Cyclic3',5'-Cyclic-GMP Phosphodiesterases1-Methyl-3-isobutylxanthineSulfonesAdenosine MonophosphatePurinonesPurinesCyclic GMP-Dependent Protein KinasesGuanosineMethylene BlueNitroprussideDibutyryl Cyclic GMPCyclic Nucleotide Phosphodiesterases, Type 5ColforsinCyclic Nucleotide Phosphodiesterases, Type 2Phosphoric Diester HydrolasesNelumboTheophyllineSecond Messenger SystemsNitric Oxide DonorsCells, CulturedDose-Response Relationship, DrugReceptors, Atrial Natriuretic Factor3',5'-Cyclic-AMP PhosphodiesterasesReceptor, Adenosine A2ASignal TransductionPenisAdenylate CyclasePenile ErectionCyclic AMP-Dependent Protein KinasesGMP ReductaseMuscle RelaxationNitric Oxide SynthasePiperazinesErectile DysfunctionReceptor, Adenosine A1Vasodilator AgentsCalciumRats, Sprague-DawleyEtretinateMuscle, Smooth, VascularArginineCyclic GMP-Dependent Protein Kinase Type IEnzyme InhibitorsKineticsAorta, ThoracicRabbitsCyclic Nucleotide Phosphodiesterases, Type 6Adenosine DeaminaseCyclic AMP Response Element-Binding ProteinIsoproterenolPhosphodiesterase 4 InhibitorsRats, Inbred StrainsNatriuretic Peptide, C-TypeVasodilationTime FactorsNitritesEnzyme 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, BrainBromineNitric Oxide Synthase Type IIIGuanosine TriphosphateCyclic Nucleotide Phosphodiesterases, Type 4AcetylcholineCholera ToxinReceptors, Adenosine A2Disease Models, AnimalInosine Monophosphate