Cyclic Nucleotide Phosphodiesterases, Type 13',5'-Cyclic-AMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 4Cyclic Nucleotide Phosphodiesterases, Type 3Cyclic Nucleotide Phosphodiesterases, Type 2Phosphoric Diester Hydrolases2',3'-Cyclic-Nucleotide PhosphodiesterasesNucleotides, CyclicPhosphodiesterase Inhibitors3',5'-Cyclic-GMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 5Cyclic GMPCyclic AMPCyclic Nucleotide Phosphodiesterases, Type 71-Methyl-3-isobutylxanthineRolipramAdenosinePurinonesIsoenzymesAdenosine MonophosphateMolecular Sequence DataCalmodulinKineticsAmino Acid SequenceReceptor, Adenosine A2ANucleotidesCyclic Nucleotide Phosphodiesterases, Type 6Bucladesine8-Bromo Cyclic Adenosine MonophosphateReceptor, Adenosine A1TheophyllinePhosphodiesterase 4 InhibitorsAdenine NucleotidesColforsinAdenosine DeaminaseAdenylate CyclaseCyclic AMP-Dependent Protein Kinases4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinoneReceptor, Adenosine A3Phosphodiesterase 3 InhibitorsAdenosine KinaseXanthinesSecond Messenger SystemsReceptor, Adenosine A2BDibutyryl Cyclic GMPReceptors, Purinergic P1Receptors, Adenosine A2MilrinoneIsoproterenolAdenosine A2 Receptor AgonistsCalciumAdenosine A2 Receptor AntagonistsSignal TransductionCells, CulturedPyrrolidinonesAdenosine A1 Receptor AntagonistsPhosphodiesterase IPhosphorus-Oxygen LyasesCyclic Nucleotide-Gated Cation ChannelsDose-Response Relationship, DrugCyclic GMP-Dependent Protein KinasesAdenosine A1 Receptor AgonistsBase SequenceGuanylate CyclasePurinesEnzyme ActivationAdenosine-5'-(N-ethylcarboxamide)PapaverineCattleAMP DeaminasePurinergic P1 Receptor AntagonistsBinding SitesAdenosine TriphosphateRNA, Messenger5'-NucleotidasePhenylisopropyladenosineCyclic IMPCell LineInosine NucleotidesHydrolysisPhosphodiesterase 5 InhibitorsReceptors, PurinergicCloning, MolecularMutationGuanine NucleotidesPurinergic P1 Receptor AgonistsTime FactorsAdenineEnzyme InhibitorsReceptors, Adrenergic, betaMyocardiumGuanosine MonophosphateIsoquinolinesDipyridamolePolymorphism, Single NucleotidePhosphorylationInosine MonophosphateRats, Sprague-DawleySubstrate SpecificityEtretinate