AdenosineReceptor, Adenosine A2AReceptor, Adenosine A1Adenosine DeaminaseReceptor, Adenosine A3Adenosine A2 Receptor AgonistsReceptor, Adenosine A2BReceptors, Purinergic P1Adenosine KinaseAdenosine A2 Receptor AntagonistsPurinergic P1 Receptor AgonistsReceptors, Adenosine A2PhenethylaminesAdenosine A1 Receptor AntagonistsPurinergic P1 Receptor AntagonistsAdenosine A1 Receptor AgonistsXanthinesAdenosine-5'-(N-ethylcarboxamide)Adenosine MonophosphateTheophyllineReceptors, Purinergic2-ChloroadenosinePhenylisopropyladenosineAdenosine A3 Receptor AntagonistsAdenosine A3 Receptor Agonists5'-NucleotidaseInosineCyclic AMPTriazinesTheobromineAdenosine TriphosphatasesTubercidinAdenine NucleotidesTriazolesNucleoside DeaminasesCoformycinDipyridamolePentostatinDose-Response Relationship, DrugAdenosine PhosphosulfateVasodilator AgentsPipecolic AcidsPurinesThioinosineAdenineKineticsDeoxyadenosinesPurinergic AntagonistsRats, Sprague-DawleyAminophyllineRats, WistarNucleoside Transport ProteinsHypoxanthineNucleotidasesCells, CulturedGuinea PigsHypoxanthinesRadioligand AssayNucleosidesApyraseCalciumCaffeineCarbon-Oxygen LyasesCoronary CirculationEnzyme InhibitorsColforsinPurinergic P2 Receptor AntagonistsAdenylate CyclaseBucladesineVitamin URabbitsRibonucleosidesVasodilationDogsAdenosylhomocysteinaseReceptors, Purinergic P2Time FactorsMyocardiumNucleotidesRats, Inbred StrainsGlyburideCyclic AMP-Dependent Protein Kinases8-Bromo Cyclic Adenosine MonophosphateMagnesiumSignal TransductionBinding, CompetitiveExtracellular Space3',5'-Cyclic-AMP PhosphodiesterasesHyperemia1-Methyl-3-isobutylxanthineGlycyrrhiza uralensisHeartNorbornanesCell MembranePerfusionIsoproterenolS-AdenosylhomocysteinePurine NucleosidesEnzyme ActivationDinucleoside Phosphates