DihydroalprenololSynaptic TransmissionReceptors, AdrenergicReceptors, Adrenergic, betaPropranololIsoproterenolExcitatory Postsynaptic PotentialsButoxamineAdrenergic beta-AntagonistsAdrenergic beta-AgonistsSynapsesElectric StimulationReceptors, Adrenergic, beta-2HippocampusPatch-Clamp TechniquesReceptors, AMPANeuronsMetoprololNorepinephrineCyclic AMPGlutamic AcidEpinephrineRats, Sprague-DawleyAdenylate CyclasePresynaptic TerminalsReceptors, N-Methyl-D-AspartateNeural InhibitionExcitatory Amino Acid AntagonistsExcitatory Amino Acid AgonistsReceptors, Adrenergic, beta-1ElectrophysiologyPyramidal CellsAction Potentialsalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidNeuronal PlasticityReceptors, GlutamateInhibitory Postsynaptic PotentialsLong-Term PotentiationReceptors, Adrenergic, alpha-2GABA AntagonistsReceptors, Adrenergic, alphagamma-Aminobutyric AcidReceptors, PresynapticEvoked PotentialsReceptors, Adrenergic, alpha-12-Amino-5-phosphonovalerate6-Cyano-7-nitroquinoxaline-2,3-dioneRats, WistarDogsCells, CulturedNeurotransmitter AgentsKainic AcidReceptors, Metabotropic GlutamateAdrenergic alpha-AntagonistsBicucullineExcitatory Amino Acid AgentsQuinoxalinesReceptors, Adrenergic, beta-3CA1 Region, HippocampalCalciumAnimals, NewbornOrgan Culture TechniquesN-MethylaspartateMembrane PotentialsInterneuronsReceptors, Kainic AcidAdrenergic beta-2 Receptor AgonistsAdrenergic alpha-AgonistsLong-Term Synaptic DepressionTime FactorsDose-Response Relationship, DrugAdrenergic beta-2 Receptor AntagonistsPrazosinTetrodotoxinReceptors, Amino AcidPicrotoxinSubstantia GelatinosaReceptors, NeurotransmitterDendritic SpinesGlycineReceptors, GABA-AMice, Inbred C57BLPosterior Horn CellsCalcium Channels, P-TypeSignal TransductionDendritesExcitatory Amino AcidsCalcium Channels, Q-TypeCycloleucineSpinal CordYohimbineMice, KnockoutPropanolaminesSeptal NucleiAminobutyratesBenzothiadiazinesAdrenergic alpha-1 Receptor AntagonistsPerforant PathwayCalcium Channels, N-TypeGABA-A Receptor Antagonists