AdenosineReceptors, Islet Amyloid PolypeptideRadioligand AssayReceptors, Purinergic P1Receptor, Adenosine A2AReceptor, Adenosine A3Receptor, Adenosine A1Purinergic P1 Receptor AgonistsPurinergic P1 Receptor AntagonistsReceptor, Adenosine A2BLigandsXanthinesAdenosine A2 Receptor AgonistsReceptors, GABA-AAdenosine-5'-(N-ethylcarboxamide)Adenosine A2 Receptor AntagonistsReceptors, Adenosine A2CHO CellsAdenosine A1 Receptor AgonistsReceptors, PurinergicAdenosine A1 Receptor AntagonistsAdenosine A3 Receptor AntagonistsAdenosine A3 Receptor AgonistsAdenosine DeaminasePhenethylaminesRats, Sprague-DawleyPhenylisopropyladenosineTheophyllinePharmacology2-ChloroadenosinePharmacology, ClinicalAdenosine KinaseTriazinesTheobrominePurinergic AntagonistsCyclic AMPAdenosine MonophosphateTriazoles5'-NucleotidasePurinesInosineAminophyllineDose-Response Relationship, DrugTubercidinNorbornanesCaffeineDipyridamoleBinding, CompetitiveAdenylate CyclaseVasodilator AgentsGuinea PigsThioinosineAdenineAdenine NucleotidesCricetinaeNucleoside Transport ProteinsCells, CulturedSignal TransductionKineticsColforsinNucleosidesMice, KnockoutRats, WistarThionucleosidesMyocardiumStructure-Activity RelationshipAdenosine TriphosphatasesAdenosine Deaminase InhibitorsMice, Inbred C57BLDeoxyadenosinesPhosphodiesterase Inhibitors4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinoneCalciumAminopyridinesGTP-Binding ProteinsCell MembraneHyperemiaIschemic Preconditioning, MyocardialDogsVasodilationPertussis ToxinTritiumTime FactorsEquilibrative Nucleoside Transporter 1Potassium ChannelsCyclohexanecarboxylic AcidsReceptors, Purinergic P2CricetulusHypoxanthineGlyburideCell LineBrainHeart RateNucleoside Deaminases1-Methyl-3-isobutylxanthineHeartIodobenzenesDrug DesignEnzyme InhibitorsRabbits