Platelet ActivationVascular Endothelial Growth Factor AVascular Endothelial Growth FactorsBlood PlateletsEndothelial Growth FactorsPlatelet AggregationVascular Endothelial Growth Factor Receptor-2Receptors, Vascular Endothelial Growth FactorLymphokinesVascular Endothelial Growth Factor Receptor-1Platelet AdhesivenessPlatelet CountNeovascularization, PathologicPlatelet Membrane GlycoproteinsNeovascularization, PhysiologicVascular Endothelial Growth Factor CPlatelet Factor 4P-SelectinVascular Endothelial Growth Factor Receptor-3Receptors, Growth FactorThrombinAngiogenesis InhibitorsVascular Endothelial Growth Factor DEndothelium, VascularPlatelet Glycoprotein GPIIb-IIIa ComplexVascular Endothelial Growth Factor BPlatelet Glycoprotein GPIb-IX ComplexEndothelial Cellsbeta-ThromboglobulinAdenosine DiphosphateReceptor Protein-Tyrosine KinasesPlatelet Function TestsThrombosisCells, CulturedRNA, MessengerNeuropilin-1Hypoxia-Inducible Factor 1, alpha SubunitPlatelet Activating FactorThromboxane A2Signal TransductionPlatelet TransfusionImmunohistochemistryFibrinogenvon Willebrand FactorCollagenThromboxane B2Platelet Aggregation InhibitorsAngiogenesis Inducing AgentsBleeding TimeReceptors, Purinergic P2Y12Intercellular Signaling Peptides and ProteinsAngiopoietin-1Antigens, CD31Fibroblast Growth Factor 2Angiopoietin-2Blood CoagulationPhosphorylationPlatelet Membrane Glycoprotein IIbUmbilical VeinsCell MovementAspirinLymphangiogenesisCapillariesMice, NudeCell HypoxiaMice, Inbred C57BLThrombocytopeniaReverse Transcriptase Polymerase Chain ReactionCapillary PermeabilityTime FactorsFlow CytometryAntibodies, MonoclonalPregnancy ProteinsEnzyme-Linked Immunosorbent AssayCell ProliferationDose-Response Relationship, DrugHypoxia-Inducible Factor 1Disease Models, AnimalCell Line, TumorBlotting, WesternReceptors, ThrombinMegakaryocytesBlood VesselsHemostasisPyrrolesAngiogenic ProteinsUp-RegulationMicrocirculationLymphatic VesselsAntigens, CD63Retinal NeovascularizationHuman Umbilical Vein Endothelial CellsReceptor, TIE-2SerotoninDual Specificity Phosphatase 2Corneal NeovascularizationCell DivisionIschemiaMice, KnockoutIndoles