KidneyRegenerationExtremitiesAmbystoma mexicanumUreterMesodermSalamandridaeNotophthalmus viridescensTurbellariaAmbystomaAnimal FinsPlanariansMorphogenesisGene Expression Regulation, DevelopmentalTriturusNephronsIn Situ HybridizationTailWilms TumorPAX2 Transcription FactorAmputationWnt4 ProteinForelimbWolffian DuctsOrgan Culture TechniquesCell DifferentiationOrganogenesisHomeodomain ProteinsUrodelaMesonephrosPleurodelesLimb BudsNerve TissueMSX1 Transcription FactorNotophthalmusGlial Cell Line-Derived Neurotrophic FactorZebrafishEmbryonic InductionEpitheliumFibroblast Growth FactorsEmbryonic and Fetal DevelopmentWnt ProteinsUrogenital SystemCartilageBody PatterningImmunohistochemistryAnaplasiaBone Morphogenetic ProteinsDolichosGenes, HomeoboxOdontogenesisBone Morphogenetic Protein 4Hedgehog ProteinsSignal TransductionAmputation StumpsMolecular Sequence DataKidney NeoplasmsTranscription FactorsBone Morphogenetic Protein 7Cell DedifferentiationAnimal StructuresWound HealingPentosan Sulfuric PolyesterStem CellsToothTretinoinZebrafish ProteinsKidney TubulesChick EmbryoEmbryo, MammalianEmbryo, NonmammalianTenascinEpidermisDermisAnimals, Genetically ModifiedGene ExpressionAmino Acid SequenceCell ProliferationT-Box Domain ProteinsBase SequenceDNA, ComplementaryXenopus ProteinsRNA, MessengerHindlimbTooth GermFibroblast Growth Factor 9Models, BiologicalTrans-ActivatorsUrogenital AbnormalitiesProto-Oncogene Proteins c-retMice, TransgenicEpithelial CellsCellular MicroenvironmentTime FactorsXenopus laevisFlank PainReceptor, Fibroblast Growth Factor, Type 2Embryonic DevelopmentChoristomaReverse Transcriptase Polymerase Chain Reaction