AdenosinePurinergic P1 Receptor AgonistsReceptors, Purinergic P1Adenosine-5'-(N-ethylcarboxamide)Receptor, Adenosine A2APurinergic P1 Receptor AntagonistsAdenosine A3 Receptor AgonistsReceptor, Adenosine A3Adenosine A2 Receptor AgonistsAdenosine A1 Receptor AgonistsPhenethylaminesReceptor, Adenosine A1XanthinesPhenylisopropyladenosine2-ChloroadenosineReceptor, Adenosine A2BReceptors, PurinergicAdenosine A2 Receptor AntagonistsReceptors, Adenosine A2Adenosine A3 Receptor AntagonistsAdenosine A1 Receptor AntagonistsAdenosine DeaminaseTheophyllinePurinergic AntagonistsTriazinesTheobromineTriazolesCyclic AMPRadioligand AssayPurinesDose-Response Relationship, DrugFuransThionucleosidesAdenosine KinaseRats, Sprague-DawleyAdenylate CyclaseColforsinDopamine AgonistsVasodilator AgentsSerotonin Receptor AgonistsRats, WistarGuinea PigsCells, CulturedBinding, CompetitiveCricetinaeSerotonin 5-HT1 Receptor AgonistsCHO CellsSerotonin 5-HT2 Receptor AgonistsLipolysisAdenosine Monophosphate5'-NucleotidaseCalciumSignal TransductionHeartPurinergic P2 Receptor AgonistsMyocardiumHeart RateGABA AgonistsAdenosine TriphosphateGABA-A Receptor AgonistsGABA-B Receptor AgonistsInosineCannabinoid Receptor AgonistsSerotonin 5-HT4 Receptor AgonistsAminophyllineNorbornanesTubercidinBlood PressureAdrenergic alpha-2 Receptor AgonistsReceptors, Dopamine D2CaffeineDipyridamoleReceptors, Opioid, kappaHistamine AgonistsAdrenergic AgonistsMice, Inbred C57BLMuscarinic AgonistsBaclofenLigandsMice, KnockoutReceptors, Opioid, muKineticsGTP-Binding ProteinsThioinosineSerotonin AntagonistsNucleoside Transport ProteinsReceptors, Purinergic P22,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepinePiperidinesAminopyridinesIsoproterenolAdrenergic beta-AgonistsAdenineAdenine NucleotidesAdrenergic beta-3 Receptor AgonistsPertussis ToxinTime FactorsQuinpiroleNicotinic AgonistsStructure-Activity Relationship