AdenosineReceptor, Adenosine A2AReceptor, Adenosine A1Adenosine DeaminaseReceptor, Adenosine A3Receptor, Adenosine A2BAdenosine A2 Receptor AgonistsAdenosine KinaseReceptors, Adenosine A2Adenosine A1 Receptor AgonistsPurinergic P1 Receptor AgonistsReceptors, Purinergic P1Adenosine A2 Receptor AntagonistsAdenosine A1 Receptor AntagonistsPurinergic P1 Receptor AntagonistsXanthinesAdenosine MonophosphateAdenosine-5'-(N-ethylcarboxamide)Adenosine A3 Receptor AgonistsPhenethylaminesReceptors, PurinergicTheophyllineAdenosine A3 Receptor Antagonists2-ChloroadenosinePhenylisopropyladenosineCyclic AMPSerotonin Receptor AgonistsInosine5'-NucleotidaseDopamine AgonistsDose-Response Relationship, DrugTubercidinSerotonin 5-HT1 Receptor AgonistsAdenosine TriphosphatasesSerotonin 5-HT2 Receptor AgonistsAdenine NucleotidesRats, Sprague-DawleyPurinergic P2 Receptor AgonistsTheobromineNucleoside DeaminasesDipyridamoleCoformycinGABA AgonistsRats, WistarGABA-B Receptor AgonistsTriazinesGABA-A Receptor AgonistsCannabinoid Receptor AgonistsSerotonin 5-HT4 Receptor AgonistsPurinesPentostatinCells, CulturedKineticsGuinea PigsAdenosine PhosphosulfateAdrenergic alpha-2 Receptor AgonistsCalciumRadioligand AssayThioinosineAdenineVasodilator AgentsPurinergic AntagonistsReceptors, Purinergic P2Histamine AgonistsAdenylate CyclaseTriazolesReceptors, Opioid, kappaReceptors, Dopamine D2DeoxyadenosinesMuscarinic AgonistsAminophyllineIsoproterenolNucleoside Transport ProteinsColforsinSignal TransductionTime FactorsAdrenergic AgonistsReceptors, Opioid, muBaclofenSerotonin AntagonistsNucleotidasesAdrenergic beta-AgonistsHypoxanthine2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineApyraseReceptors, Dopamine D1HypoxanthinesQuinpiroleNucleosidesExcitatory Amino Acid AgonistsDogsMyocardiumRabbitsBucladesinePiperidinesReceptors, Opioid, deltaAdrenergic beta-3 Receptor AgonistsMice, Inbred C57BLCoronary CirculationEnzyme Inhibitors