Animals, NewbornAgingAge FactorsRats, Sprague-DawleyMice, TransgenicBrainMice, Inbred C57BLGene Expression Regulation, DevelopmentalParaganglia, NonchromaffinSexual MaturationRNA, MessengerPregnancyAnimals, SucklingFetusImmunohistochemistryNeuronsDisease Models, AnimalTestisLiverRats, Inbred StrainsMolecular Sequence DataTime FactorsGene Expression RegulationEmbryo, MammalianBehavior, AnimalMice, Inbred StrainsMice, KnockoutTissue DistributionNeuronal PlasticityRats, WistarMicroscopy, ElectronSheepRats, Inbred F344Gene ExpressionCell CountIn Situ HybridizationHippocampusBase SequenceCaenorhabditis elegans ProteinsLong-Term PotentiationHistocytochemistryCaenorhabditis elegansMaze LearningEmbryonic and Fetal DevelopmentAnimals, Genetically ModifiedGerbillinaeNerve Tissue ProteinsOrgan SpecificityIntegrasesRegenerationMotor ActivitySciatic NerveAnalysis of VarianceOrgan SizeCell DifferentiationPhenotypeGestational AgeRats, Long-EvansLeydig CellsAmino Acid SequenceMuscle DevelopmentNeurogenesisNerve RegenerationSertoli CellsSynapsesTransgenesIntestine, SmallCells, CulturedSpermatogenesisReceptors, N-Methyl-D-AspartateBody WeightJejunumModels, AnimalMice, Mutant StrainsGene TargetingBrain ChemistryCentral Nervous SystemSignal TransductionSpinal CordPrenatal Exposure Delayed EffectsNeurons, AfferentMesocricetusLarvaZebrafishBlotting, WesternBromodeoxyuridineAvoidance LearningTestosteroneStem CellsTranscription, GeneticDopamineMuscle, SkeletalCell DivisionBlotting, NorthernRabbitsTranscription FactorsAutoradiographyCatsSynaptic TransmissionMutation