Neural TubeNeurulationNeural CrestNervous SystemEctodermChick EmbryoNeural Tube DefectsCentral Nervous SystemNotochordGene Expression Regulation, DevelopmentalAnencephalyIn Situ HybridizationEmbryo, NonmammalianMorphogenesisEmbryo, MammalianBody PatterningQuailMesodermSpinal DysraphismRhombencephalonSkullXenopus ProteinsEmbryonic InductionGastrulaAmbystoma mexicanumPollen TubeEmbryonic and Fetal DevelopmentHomeodomain ProteinsMesencephalonMicroscopy, Electron, ScanningAmbystomaFolic AcidTranscription FactorsCell MovementGallic AcidXenopus laevisGenes, HomeoboxXenopusSpina Bifida OccultaCoturnixHeadCulture TechniquesCell DifferentiationSomitesHedgehog ProteinsMolecular Sequence DataFallopian TubesPregnancyPaired Box Transcription FactorsSignal TransductionEncephalocelePapaverineMeningomyeloceleEustachian TubeEpitheliumTime FactorsCadherinsAmino Acid SequenceSpina Bifida CysticaChest TubesImmunohistochemistryReceptor, Platelet-Derived Growth Factor alphaBrainVitamin B ComplexMicroscopy, ElectronZebrafish ProteinsSpinal CordEmbryonic DevelopmentAvian ProteinsPreconception CareColchicineTissue TransplantationNeural PlateZebrafishCranial NervesBone Morphogenetic ProteinsDiazepamNerve Tissue ProteinsPrenatal DiagnosisWnt3 ProteinNocodazoleMice, Mutant StrainsCongenital AbnormalitiesMutationFood, FortifiedWnt ProteinsBase SequenceTailFolic Acid DeficiencyDNA-Binding ProteinsWnt1 ProteinProteinsFallopian Tube NeoplasmsRNA, MessengerNeuroepithelial CellsTrans-ActivatorsChimeraTeratogensIntubation, GastrointestinalCell Polarity