Complement C5aReceptors, GABAPregnanoloneReceptors, GABA-AGABA AntagonistsPregnenolonegamma-Aminobutyric AcidGABA AgonistsAspartate AminotransferasesGABA ModulatorsGABA AgentsSteroidsGABA-A Receptor AntagonistsMuscimolFinasterideGABA-A Receptor AgonistsNeurotransmitter AgentsReceptors, GABA-BPregnanedionesPicrotoxinAspartate CarbamoyltransferaseDehydroepiandrosteroneAndrostane-3,17-diolBicuculline5-alpha Reductase InhibitorsBaclofenDehydroepiandrosterone SulfatePregnanesAspartic AcidCrotonatesGABA-B Receptor AntagonistsGABA Plasma Membrane Transport ProteinsDiazepamDieldrinPentobarbitalDesoxycorticosteroneNeuronsAnestheticsPatch-Clamp TechniquesAndrostenolsNipecotic AcidsPhosphinic Acids5-alpha-DihydroprogesteroneGABA-B Receptor AgonistsIsonicotinic AcidsRats, Sprague-DawleyNeural InhibitionSynaptic TransmissionGlutamic AcidXenopus laevis17-alpha-HydroxypregnenoloneDose-Response Relationship, DrugProtein Subunits3-alpha-Hydroxysteroid Dehydrogenase (B-Specific)Pyridazines3-Oxo-5-alpha-Steroid 4-DehydrogenaseGABAergic NeuronsBrainConvulsantsHippocampusReceptors, sigmaMembrane PotentialsAllosteric RegulationPerfumeOocytesAspartate KinaseGABA Uptake Inhibitors4-Aminobutyrate TransaminaseEthanolSeizuresFlunitrazepamKindling, NeurologicPremenstrual SyndromeAminobutyratesRats, WistarAmputation StumpsBrain ChemistryCentral Nervous System DepressantsAnti-Anxiety AgentsElectrophysiologyBinding SitesChloridesGlutamate DecarboxylaseReceptors, N-Methyl-D-AspartateProgesteroneGlycineAnticonvulsantsFlurazepamKineticsBacopaCells, CulturedReceptors, GlycineAlanine TransaminaseEnzyme InhibitorsAspartate Ammonia-LyaseSynapsesOrganophosphorus CompoundsRetinaNG-Nitroarginine Methyl EsterChloride Channels