KidneyRegenerationExtremitiesAmbystoma mexicanumUreterSalamandridaeNotophthalmus viridescensTurbellariaAmbystomaAnimal FinsPlanariansMesodermTriturusTailNephronsWilms TumorAmputationIn Situ HybridizationPAX2 Transcription FactorGene Expression Regulation, DevelopmentalForelimbMorphogenesisWnt4 ProteinUrodelaPleurodelesWolffian DuctsNotophthalmusNerve TissueMesonephrosOrganogenesisCell DifferentiationZebrafishGlial Cell Line-Derived Neurotrophic FactorOrgan Culture TechniquesHomeodomain ProteinsAnaplasiaDolichosAmputation StumpsKidney NeoplasmsCell DedifferentiationAnimal StructuresPentosan Sulfuric PolyesterWound HealingWnt ProteinsImmunohistochemistryGenes, HomeoboxKidney TubulesMolecular Sequence DataZebrafish ProteinsEpidermisDermisCartilageUrogenital SystemAnimals, Genetically ModifiedStem CellsFibroblast Growth FactorsEmbryonic and Fetal DevelopmentTretinoinBody PatterningMSX1 Transcription FactorCellular MicroenvironmentSignal TransductionLimb BudsFlank PainEmbryonic InductionAmino Acid SequenceCell ProliferationChoristomaDenervationDNA, ComplementaryGene ExpressionXenopus ProteinsPAX7 Transcription FactorBone Morphogenetic Protein 7Xenopus laevisTranscription FactorsHindlimbProto-Oncogene Proteins c-retBase SequenceMultipotent Stem CellsEpitheliumTenascinUrogenital AbnormalitiesEmbryo, NonmammalianLarvaT-Box Domain ProteinsWT1 ProteinsModels, BiologicalGene Expression ProfilingReverse Transcriptase Polymerase Chain ReactionDNA PrimersRNA, MessengerTime FactorsHedgehog ProteinsEmbryo, MammalianBone Morphogenetic ProteinsAdenofibromaHeadBone Morphogenetic Protein 4Trans-Activators