Cord Blood Stem Cell TransplantationFetal BloodUmbilical CordAntigens, CD34Hematopoietic Stem CellsUmbilical VeinsCells, CulturedMesenchymal Stromal CellsBlood BanksInfant, NewbornCell DifferentiationSpinal CordStem CellsCell Culture TechniquesCell SeparationHematopoietic Stem Cell TransplantationUmbilical ArteriesPregnancyMice, SCIDLiver ExtractsAntigens, CDWharton JellyTransplantation, HomologousMice, Inbred NODFlow CytometryHuman Umbilical Vein Endothelial CellsImmunophenotypingColony-Forming Units AssaySpinal Cord InjuriesEndothelial CellsCoculture TechniquesCell LineageAntigens, CD38Transplantation, HeterologousGraft vs Host DiseaseLeukocytes, MononuclearADP-ribosyl CyclaseAntigens, CD45Stem Cell TransplantationBone Marrow CellsEndothelium, VascularCell ProliferationStem Cell FactorHematopoiesisTransplantation ConditioningTime FactorsMaternal-Fetal ExchangeHistocompatibility TestingGranulocyte-Macrophage Progenitor CellsCell SurvivalT-LymphocytesHematologic NeoplasmsImmunohistochemistryMesenchymal Stem Cell TransplantationReverse Transcriptase Polymerase Chain ReactionCytokinesCell DivisionBlood PreservationBlood CellsGraft SurvivalBone Marrow TransplantationTransplantation ChimeraDisease Models, AnimalGlycoproteinsHernia, UmbilicalPlacentaRats, Sprague-DawleyGestational AgePeptidesStromal CellsNeovascularization, PhysiologicNuchal CordTissue DonorsLeukemiaUnrelated DonorsDonor SelectionFetusUrachal CystCulture Media, ConditionedBlood Cell CountCell AdhesionMyeloablative AgonistsTissue EngineeringRats, WistarRNA, MessengerCell MovementHLA AntigensOsteogenesisCell TransplantationCalcium PhosphatesNeuronsBlood Transfusion, AutologousOpiate AlkaloidsLymphocytesNAD+ NucleosidaseHematologic DiseasesFetal Stem CellsCulture Media, Serum-FreeBiological MarkersBlood Donors