2',3'-Cyclic-Nucleotide PhosphodiesterasesPhosphoric Diester HydrolasesPhosphodiesterase InhibitorsNucleotidases3',5'-Cyclic-AMP Phosphodiesterases1-Methyl-3-isobutylxanthineRolipram3',5'-Cyclic-GMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 4PurinonesPhosphodiesterase 4 Inhibitors4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinoneCyclic AMPPhosphodiesterase 3 InhibitorsCyclic Nucleotide Phosphodiesterases, Type 3Phosphodiesterase 5 InhibitorsCyclic GMPPhosphodiesterase ITheophyllineCyclic Nucleotide Phosphodiesterases, Type 5MilrinoneCyclic Nucleotide Phosphodiesterases, Type 1Angiotensin-Converting Enzyme InhibitorsPapaverinePyrrolidinonesSulfonesColforsinPentoxifyllinePurinesBucladesinePyridazinesNucleotides, CyclicXanthinesAdenylate CyclaseCyclic Nucleotide Phosphodiesterases, Type 28-Bromo Cyclic Adenosine MonophosphateEnalaprilCyclic Nucleotide Phosphodiesterases, Type 6KineticsCaptoprilVinca AlkaloidsIsoproterenolDose-Response Relationship, DrugEnoximoneCyclic Nucleotide Phosphodiesterases, Type 7Photoreceptor CellsRamiprilAmrinoneTeprotideCyclic AMP-Dependent Protein KinasesAminophyllineTransducinPiperazinesEnzyme InhibitorsEnzyme ActivationEnalaprilatCalciumIsoquinolinesGuanylate CyclaseTetrazolesRod Cell Outer SegmentFosinoprilBufo bufoDibutyryl Cyclic GMPCattleErectile DysfunctionThionucleotidesImidazolesIsoenzymesPyridonesPeptidyl-Dipeptidase ARats, Inbred StrainsCells, CulturedCyclic GMP-Dependent Protein KinasesNitric OxideAlprostadilPhenylisopropyladenosineDipyridamoleVasodilator AgentsGuinea PigsAdenosinePyrophosphatasesPhthalazinesPenile ErectionSecond Messenger SystemsTime FactorsCalmodulinTetrahydroisoquinolinesAtrial Natriuretic FactorRats, WistarCilazaprilPerindoprilNitroprussideReninStimulation, ChemicalMyocardiumHydrolysisRats, Sprague-DawleyMolecular Sequence DataHemodynamics