Umbilical VeinsHuman Umbilical Vein Endothelial CellsEndothelial CellsEndothelium, VascularCells, CulturedCell AdhesionEndotheliumNeovascularization, PhysiologicE-SelectinVascular Cell Adhesion Molecule-1Vascular Endothelial Growth Factor AUmbilical ArteriesVeinsCell MovementIntercellular Adhesion Molecule-1Umbilical CordNeovascularization, PathologicAngiogenesis InhibitorsRNA, MessengerNitric Oxide Synthase Type IIITumor Necrosis Factor-alphaCell Adhesion MoleculesThrombinSignal TransductionDose-Response Relationship, DrugVascular Endothelial Growth Factor Receptor-2Cell ProliferationNitric OxideCulture Media, ConditionedCell LineEndothelial Growth Factorsvon Willebrand FactorEpoprostenolStress, MechanicalVascular Endothelial Growth FactorsInterleukin-1AortaCell DivisionSaphenous VeinChorioallantoic MembraneCell SurvivalGene Expression RegulationPhosphorylationUp-RegulationLymphokinesTime FactorsInterleukin-8NF-kappa BApoptosisAntigens, CD31ThromboplastinFetal BloodBlotting, WesternEnzyme InhibitorsEnzyme ActivationCoculture TechniquesAngiogenesis Inducing AgentsMonocytesReverse Transcriptase Polymerase Chain ReactionProto-Oncogene Proteins c-aktCattleAntigens, CDGene ExpressionCapillariesNeutrophilsHistaminePortal VeinRecombinant ProteinsFibroblast Growth Factor 2Receptors, Cell SurfaceTransfectionP-SelectinRNA, Small InterferingReceptors, Vascular Endothelial Growth FactorMicrocirculationReceptors, ThrombinLamininThrombomodulinReactive Oxygen SpeciesVaricose VeinsDrug CombinationsNitric Oxide SynthaseFlow CytometryDown-RegulationCapillary PermeabilityPlasminogen InactivatorsPiperLipopolysaccharidesCell Culture TechniquesIntegrin alphaVbeta3Chemokine CCL2Angiopoietin-2EndostatinsAngiopoietin-1Vascular Endothelial Growth Factor Receptor-1Cell CommunicationLipoproteins, LDLKineticsProteoglycansCollagen