SynapsesNeuropilSynaptophysinDendritesHippocampusNeuronsNeuronal PlasticityNerve Tissue ProteinsBone DensityMedial Forebrain BundlePost and Core TechniqueDiencephalonTelencephalonPopulation DensitySubstantia InnominataHoloprosencephalyCholine O-AcetyltransferaseCholinergic FibersCentrifugation, Density GradientBrainBasal Nucleus of MeynertCholinergic NeuronsRats, Sprague-DawleyTime FactorsCell CountGene Expression Regulation, DevelopmentalVocalization, AnimalIn Situ HybridizationCerebral CortexMesencephalonHomeodomain ProteinsImmunohistochemistryFinchesGerbillinaeOtx Transcription FactorsNeural PathwaysLipoproteins, LDLIschemic Attack, TransientRibosome Inactivating Proteins, Type 1Behavior, AnimalZebrafishMice, TransgenicCholinergic AgentsAnalysis of VarianceMice, Inbred C57BLCells, CulturedRhombencephalonRats, WistarBody PatterningSeptal NucleiOlfactory BulbMice, KnockoutDiagonal Band of BrocaFibroblast Growth Factor 8Zebrafish ProteinsLipoproteins, HDLCorpus StriatumAnimals, NewbornDisease Models, AnimalSeptum PellucidumAutoradiographyThalamusBrain Tissue TransplantationBrain IschemiaRNA, MessengerTranscription FactorsHedgehog ProteinsSeptum of BrainTooth, NonvitalRats, Inbred StrainsPost-Synaptic DensitySongbirdsEmbryo, MammalianAmygdalaSelf StimulationMicroscopy, ElectronAxonsMolecular Sequence DataAbsorptiometry, PhotonStem CellsAgingNeostriatumLipoproteins, VLDLEye ProteinsSignal TransductionStarlingsBrain ChemistryAuditory PathwaysHypothalamusNeurogenesisLimbic SystemCell DifferentiationPreoptic Areagamma-Aminobutyric AcidInjections, IntraventricularEctodermGABAergic NeuronsBrain StemNerve DegenerationModels, Biological