Receptors, Purinergic P1AdenosinePurinergic P1 Receptor AgonistsPurinergic P1 Receptor AntagonistsReceptor, Adenosine A2AReceptor, Adenosine A2BReceptor, Adenosine A3Receptor, Adenosine A1Adenosine-5'-(N-ethylcarboxamide)XanthinesPhenethylaminesAdenosine A2 Receptor AntagonistsAdenosine A2 Receptor AgonistsAdenosine A1 Receptor AgonistsTriazolesReceptors, Adenosine A2Receptors, PurinergicAdenosine A1 Receptor AntagonistsAdenosine A3 Receptor AgonistsAdenosine A3 Receptor AntagonistsAdenosine DeaminasePhenylisopropyladenosineTheophylline2-ChloroadenosineAdenosine KinaseRadioligand AssayTriazinesCyclic AMPPurinergic AntagonistsTheobromineAdenosine Monophosphate5'-NucleotidaseReceptors, SomatostatinDose-Response Relationship, DrugPurinesBinding, CompetitiveRats, Sprague-DawleyInosineAminophyllineAdenylate CyclaseTubercidinNorbornanesCricetinaeCHO CellsCells, CulturedCaffeineGuinea PigsDipyridamoleSignal TransductionRats, WistarReceptors, MuscarinicRNA, MessengerMice, KnockoutReceptors, Purinergic P2Vasodilator AgentsColforsinThioinosineKineticsMolecular Sequence DataAdenineNucleoside Transport ProteinsReceptors, SerotoninCalciumMice, Inbred C57BLMyocardiumLigandsReceptor, Muscarinic M3GTP-Binding ProteinsAdenine NucleotidesReceptors, Prostaglandin EBrainStructure-Activity RelationshipReceptors, Dopamine D2Cell LinePertussis ToxinCell MembranePirenzepineReceptor, Muscarinic M1Receptor, Muscarinic M2TritiumReceptors, Adrenergic, alpha-1PyridinesReverse Transcriptase Polymerase Chain ReactionReceptors, AngiotensinThionucleosidesReceptors, Neuropeptide YMuscarinic AntagonistsReceptors, Prostaglandin E, EP4 SubtypeTime FactorsAutoradiographyDogsVasodilationCorpus StriatumAdenosine TriphosphatasesPhosphodiesterase InhibitorsReceptors, Prostaglandin E, EP1 SubtypeNucleosidesAdenosine Deaminase InhibitorsReceptors, Adrenergic, alpha-2Amino Acid Sequence