RegenerationExtremitiesNotophthalmus viridescensSalamandridaeAmbystoma mexicanumTurbellariaAmbystomaNotophthalmusForelimbPlanariansAnimal FinsMammalsNerve RegenerationLiver RegenerationTriturusTailAmputationUrodelaBone RegenerationZebrafishPleurodelesNerve TissueWilms TumorIn Situ HybridizationWound HealingCell DifferentiationCell DedifferentiationGene Expression Regulation, DevelopmentalAnaplasiaAmputation StumpsAnimal StructuresZebrafish ProteinsAnimals, Genetically ModifiedGuided Tissue RegenerationPentosan Sulfuric PolyesterMorphogenesisCell ProliferationStem CellsMolecular Sequence DataMesodermEpidermisGenes, HomeoboxDermisCartilageBody PatterningFibroblast Growth FactorsPAX7 Transcription FactorHomeodomain ProteinsTretinoinAmino Acid SequenceDenervationMSX1 Transcription FactorCellular MicroenvironmentLarvaHindlimbXenopus laevisLimb BudsMultipotent Stem CellsXenopus ProteinsImmunohistochemistrySignal TransductionHepatectomyEmbryo, NonmammalianChoristomaModels, BiologicalAxons