AdenosineReceptor, Adenosine A2AReceptor, Adenosine A1Purinergic P1 Receptor AntagonistsAdenosine DeaminaseXanthinesReceptors, Purinergic P1Purinergic P1 Receptor AgonistsTheophyllineAdenosine A1 Receptor AntagonistsReceptor, Adenosine A3Adenosine A1 Receptor AgonistsAdenosine KinasePhenylisopropyladenosineReceptor, Adenosine A2BAdenosine A2 Receptor AntagonistsAdenosine A2 Receptor AgonistsReceptors, Purinergic2-ChloroadenosineAdenosine-5'-(N-ethylcarboxamide)Receptors, Adenosine A2TubercidinPhenethylaminesDipyridamolePurinergic AntagonistsAdenosine Deaminase Inhibitors5'-NucleotidaseAminophyllineInosineAdenosine MonophosphateAdenosine A3 Receptor AgonistsAdenineRats, Sprague-DawleyDose-Response Relationship, DrugCyclic AMPSerotonin Receptor AgonistsDopamine AgonistsThioinosineAdenosine A3 Receptor AntagonistsSerotonin 5-HT1 Receptor AgonistsSerotonin 5-HT2 Receptor AgonistsGuinea PigsRats, WistarCaffeinePurinesTriazolesSynaptic TransmissionDogsPurinergic P2 Receptor AgonistsGABA AgonistsGABA-A Receptor AgonistsGABA-B Receptor AgonistsPerfusionCannabinoid Receptor AgonistsSerotonin 5-HT4 Receptor AgonistsElectric StimulationHydralazinePiperazinesAdenosine TriphosphatasesAdenine NucleotidesRats, Inbred StrainsCoronary CirculationMyocardiumAdrenergic alpha-2 Receptor AgonistsHippocampusTime FactorsMice, Inbred C57BLEnzyme InhibitorsTheobromineAdenosine TriphosphateHeartHistamine AgonistsReceptors, Opioid, kappaNucleoside DeaminasesCells, CulturedAcetylcholineMuscarinic AgonistsRadioligand AssayTriazinesHeart RateCoformycinReceptors, Dopamine D2CalciumKineticsReceptors, Opioid, muMyocardial IschemiaSerotonin AntagonistsBlood PressureAdrenergic AgonistsBaclofen2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineReceptors, Purinergic P2PentostatinQuinpiroleReceptors, Dopamine D1Adrenergic beta-3 Receptor AgonistsAdenylate CyclaseAdrenergic beta-AgonistsAdenosine PhosphosulfateVasodilator Agents