ThiorphanHippocampusNeprilysinTioproninNeurokinin AProtease InhibitorsGlycopeptidesRats, Sprague-DawleyRats, WistarEnkephalin, MethioninePyramidal CellsDentate GyrusReceptors, Neurokinin-2NeuronsTachykininsIbotenic AcidKainic AcidCA1 Region, HippocampalSubstance PLong-Term PotentiationSynapsesEndothelin-3Synaptic TransmissionEnkephalin, LeucineMemoryInterneuronsMaze LearningEndothelin-1gamma-Aminobutyric AcidReceptors, TachykininReceptors, N-Methyl-D-AspartateExcitatory Postsynaptic Potentials2-Amino-5-phosphonovalerateAtrial Natriuretic FactorCA3 Region, HippocampalNeurokinin-1 Receptor AntagonistsAspartic Acid EndopeptidasesDose-Response Relationship, DrugElectric Stimulation