Extraembryonic MembranesUmbilical CordFetal Membranes, Premature RuptureAmnionChorionFetal BloodLabor, ObstetricUmbilical VeinsPregnancyUmbilical ArteriesCord Blood Stem Cell TransplantationPlacentaSpinal CordLabor OnsetDeciduaAmniotic FluidMembranesCell MembraneMembrane LipidsSpinal Cord InjuriesChorioamnionitisIntracellular MembranesObstetric Labor, PrematureGestational AgeHernia, UmbilicalMembrane PotentialsCells, CulturedMembranes, ArtificialInfant, NewbornUrachal CystParturitionFetusBlood BanksCesarean SectionErythrocyte MembraneMembrane FluidityFetoscopyTrophoblastsMyometriumWharton JellyPregnancy Trimester, ThirdHuman Umbilical Vein Endothelial CellsCell Membrane PermeabilityPlacenta, RetainedUltrasonography, PrenatalPremature BirthBasement MembraneUmbilicusTissue AdhesivesRNA, MessengerPregnancy, AnimalPlacenta DiseasesTerm BirthMesenchymal Stromal CellsCulture TechniquesImmunohistochemistryMycoplasma hominisMatrix Metalloproteinase 9Labor, InducedAntigens, CD34UterusTime FactorsMembrane GlycoproteinsMicroscopy, ElectronEndothelium, VascularMaternal-Fetal ExchangePregnancy Trimester, FirstRelaxinHematopoietic Stem CellsReverse Transcriptase Polymerase Chain ReactionCattleTissue Culture TechniquesPregnancy Trimester, SecondMembrane Transport ProteinsAbortion, SepticSheepFetal HypoxiaCell DifferentiationEndothelial CellsUreaplasma urealyticumPregnancy OutcomeProstaglandinsCell LineConnective TissueCervix UteriDinoprostoneTissue Inhibitor of Metalloproteinase-1Lipid BilayersTissue Inhibitor of Metalloproteinase-3Blotting, WesternOrgan Culture TechniquesProstaglandin-Endoperoxide SynthasesObstetric Labor ComplicationsFetal DevelopmentMitochondrial MembranesPregnancy Complications, InfectiousProtein TransportInfant, PrematureGene ExpressionCyclooxygenase 2