Neural TubeNeurulationNeural CrestNervous SystemEctodermReagent StripsChick 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 OccultaCoturnixCulture TechniquesHeadCell DifferentiationSomitesHedgehog ProteinsMolecular Sequence DataPregnancyFallopian TubesPapaverinePaired Box Transcription FactorsTime FactorsSignal TransductionEncephaloceleMeningomyeloceleEpitheliumEustachian TubeAmino Acid SequenceCadherinsImmunohistochemistrySpina Bifida CysticaChest TubesReceptor, Platelet-Derived Growth Factor alphaBrainMicroscopy, ElectronVitamin B ComplexZebrafish ProteinsSpinal CordEmbryonic DevelopmentAvian ProteinsPreconception CareColchicineTissue TransplantationNeural PlateZebrafishCranial NervesBone Morphogenetic ProteinsDiazepamMuscle ContractionNerve Tissue ProteinsPrenatal DiagnosisMuscle, SmoothWnt3 ProteinNocodazoleMice, Mutant StrainsCongenital AbnormalitiesMutationTailBase SequenceFood, FortifiedWnt ProteinsProteinsFolic Acid DeficiencyDNA-Binding ProteinsWnt1 ProteinRNA, MessengerFallopian Tube NeoplasmsNeuroepithelial CellsTrans-ActivatorsChimera