gamma-Aminobutyric AcidGlutamate DecarboxylaseReceptors, GABA-ANeuronsNeurotransmitter AgentsGABA AntagonistsGABA AgonistsInterleukin 1 Receptor Antagonist ProteinNeurokinin-1 Receptor AntagonistsGABA AgentsRats, Sprague-DawleyExcitatory Amino Acid AntagonistsDose-Response Relationship, DrugGABA ModulatorsGABA-A Receptor AntagonistsPurinergic P1 Receptor AntagonistsGABA Plasma Membrane Transport ProteinsPiperidinesSerotonin 5-HT3 Receptor AntagonistsHistamine H2 AntagonistsSynaptic TransmissionDopamine AntagonistsReceptors, GABA-BReceptors, NeurotransmitterRats, WistarAngiotensin Receptor AntagonistsGlutamic AcidSerotonin 5-HT2 Receptor AntagonistsNeurotransmitter Transport ProteinsAdenosine A2 Receptor AntagonistsHormone AntagonistsAdenosine A1 Receptor AntagonistsBicucullinePurinergic P2 Receptor AntagonistsSerotoninNarcotic AntagonistsReceptors, N-Methyl-D-AspartateGABA-B Receptor AntagonistsMuscarinic AntagonistsSerotonin AntagonistsReceptors, SerotoninHistamine H1 AntagonistsReceptors, EndothelinBaclofenElectric StimulationSynapsesHistamine AntagonistsDizocilpine MaleatePatch-Clamp TechniquesGABA Uptake InhibitorsDopamineGABA-A Receptor AgonistsPlasma Membrane Neurotransmitter Transport ProteinsPresynaptic TerminalsHippocampusMuscimolSialoglycoproteinsSerotonin 5-HT1 Receptor AntagonistsLeukotriene AntagonistsCalciumNeural InhibitionReceptor, Endothelin ACells, CulturedBrainNicotinic AntagonistsGuinea PigsSynaptic VesiclesDrug InteractionsBehavior, AnimalBenzazepinesPicrotoxinPhosphinic AcidsBiphenyl CompoundsQuinoxalinesElectrophysiologyReceptors, Interleukin-1Radioligand Assay2-Amino-5-phosphonovalerateAdrenergic alpha-2 Receptor AntagonistsSubstance PExcitatory Postsynaptic PotentialsSerotonin Receptor AgonistsGABA-B Receptor AgonistsTetrazolesAdrenergic alpha-1 Receptor AntagonistsXanthinesHistamine H3 AntagonistsAcetylcholineTime FactorsPyrazolesPyridinesReceptors, Dopamine D2Nipecotic AcidsGlycineReceptors, Neurokinin-1NorepinephrinePeptides, CyclicIndolesReceptors, GlutamateMembrane Potentials