Receptors, NicotinicPresynaptic TerminalsReceptors, PresynapticSynaptic TransmissionSynapsesExcitatory Amino Acid AntagonistsExcitatory Postsynaptic PotentialsRats, Sprague-DawleyNeurotransmitter AgentsElectric StimulationNeural InhibitionNeuronsGABA AntagonistsSynaptic VesiclesHormone AntagonistsDopamine AntagonistsPatch-Clamp TechniquesHippocampusDose-Response Relationship, DrugGlutamic AcidCalciumNarcotic Antagonistsgamma-Aminobutyric AcidNeuromuscular JunctionNeurokinin-1 Receptor AntagonistsProtein BindingRats, WistarMuscarinic AntagonistsPiperidinesHistamine H2 AntagonistsAction PotentialsNeuronal PlasticityInterleukin 1 Receptor Antagonist ProteinMolecular Sequence DataReceptors, GABA-BPurinergic P1 Receptor AntagonistsNicotinic AntagonistsReceptors, N-Methyl-D-AspartateCells, CulturedElectrophysiologyCalcium Channel BlockersBinding SitesSynaptosomesBaclofenGABA-A Receptor AntagonistsHistamine H1 AntagonistsReceptors, Metabotropic GlutamateHistamine AntagonistsAmino Acid SequenceAdenosine A2 Receptor AntagonistsSynaptic MembranesNerve Tissue ProteinsGABA-B Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsNerve EndingsBinding, CompetitivePurinergic P2 Receptor AntagonistsAdrenergic alpha-2 Receptor AntagonistsMossy Fibers, HippocampalTime FactorsInhibitory Postsynaptic PotentialsAdrenergic alpha-AntagonistsAdenosine A1 Receptor AntagonistsMembrane PotentialsLong-Term PotentiationExcitatory Amino Acid AgonistsSynaptophysin6-Cyano-7-nitroquinoxaline-2,3-dioneSynapsinsSerotonin 5-HT2 Receptor AntagonistsQuinoxalinesAnimals, NewbornInterneuronsTetrodotoxinSerotonin 5-HT3 Receptor AntagonistsNorepinephrineSerotoninCalcium Channels, N-TypeSignal Transduction2-Amino-5-phosphonovalerateReceptors, AMPAMotor NeuronsGuinea PigsGABA AgonistsKineticsDopamineBicucullineSynaptic PotentialsReceptors, SerotoninDrug InteractionsYohimbineCalcium ChannelsAcetylcholineReceptor, Cannabinoid, CB1Neurons, AfferentDizocilpine MaleatePhosphinic AcidsPyramidal CellsAxonsPyridinium Compounds