NeuronsCell DifferentiationNeurons, AfferentMotor NeuronsCells, CulturedGene Expression Regulation, DevelopmentalStem CellsSignal TransductionTranscription FactorsAction PotentialsImmunohistochemistryRNA, MessengerCell LineGene Expression RegulationNerve Tissue ProteinsMice, Inbred C57BLDopaminergic NeuronsEmbryonic Stem CellsCell LineageSex DifferentiationMice, TransgenicMice, KnockoutCell DivisionTime FactorsCell ProliferationMolecular Sequence DataAnimals, NewbornGABAergic NeuronsHippocampusTretinoinHomeodomain ProteinsAxonsPatch-Clamp TechniquesElectrophysiologyReverse Transcriptase Polymerase Chain ReactionIn Situ HybridizationDNA-Binding ProteinsSynapsesPhenotypeGene ExpressionGanglia, SpinalEmbryo, MammalianNeurogenesisBase SequenceDendritesSpinal CordCerebral CortexSensory Receptor CellsSynaptic TransmissionOlfactory Receptor NeuronsElectric StimulationCell CountCell SurvivalBrainCholinergic Neuronsgamma-Aminobutyric AcidOsteogenesisOsteoblastsNeuritesMembrane PotentialsAntigens, DifferentiationBasic Helix-Loop-Helix Transcription FactorsCell Culture TechniquesGreen Fluorescent ProteinsNeuropeptidesMutationMesencephalonTransfectionNeural InhibitionTranscription, GeneticMesenchymal Stromal CellsNeurons, EfferentBlotting, WesternMotor Neuron DiseaseModels, NeurologicalChick EmbryoAdipogenesisRats, WistarModels, BiologicalApoptosisNerve Growth FactorsNeurogliaDopaminePyramidal CellsInterneuronsNeural Stem CellsCalciumMyoblastsTrans-ActivatorsPromoter Regions, GeneticAmino Acid SequenceGene Expression ProfilingFluorescent Antibody TechniqueUp-RegulationMedulla OblongataDown-RegulationMuscle DevelopmentOrgan Culture TechniquesMembrane ProteinsExcitatory Postsynaptic Potentials