Neural TubeNervous SystemGene Expression Regulation, DevelopmentalEctodermNeurulationEmbryonic InductionXenopus ProteinsEmbryo, NonmammalianIn Situ HybridizationAnencephalyNeural CrestBone Morphogenetic ProteinsChick EmbryoSpinal DysraphismXenopus laevisNeurogenesisHomeodomain ProteinsNotochordTranscription FactorsNerve Tissue ProteinsNeuronsCentral Nervous SystemPollen TubeBody PatterningCell DifferentiationMolecular Sequence DataRepressor ProteinsNeural Tube DefectsSignal TransductionFolic AcidQuailRhombencephalonMorphogenesisCoturnixSpina Bifida OccultaHedgehog ProteinsSomitesEmbryo, MammalianRNA, MessengerFallopian TubesPregnancyMesodermPaired Box Transcription FactorsEncephaloceleMeningomyeloceleEustachian TubeEmbryonic and Fetal DevelopmentSpina Bifida CysticaChest TubesZebrafish ProteinsEmbryonic DevelopmentVitamin B ComplexZebrafishSpinal CordAvian ProteinsNeural PlatePreconception CareTissue TransplantationCranial NervesCell MovementMesencephalonMutationPrenatal DiagnosisMice, Mutant StrainsGastrulaWnt3 ProteinCongenital AbnormalitiesWnt ProteinsDNA-Binding ProteinsFood, FortifiedCell PolarityWnt1 ProteinTailFolic Acid DeficiencyAmino Acid SequenceCulture TechniquesTrans-ActivatorsNeuroepithelial CellsPhenotypeFallopian Tube NeoplasmsGenes, HomeoboxChimeraProteinsTeratogensBase SequenceIntubation, GastrointestinalStem CellsProsencephalonImmunohistochemistryTime FactorsMice, TransgenicInfant, NewbornAbortion, TherapeuticLIM-Homeodomain Proteinsalpha-FetoproteinsFetal DeathBasic Helix-Loop-Helix Transcription FactorsModels, BiologicalXenopusSkull