HindlimbAngiogenic ProteinsNeovascularization, PhysiologicAngiogenesis Inducing AgentsNeovascularization, PathologicVascular Endothelial Growth Factor AIschemiaMuscle, SkeletalVascular Endothelial Growth FactorsEndothelial Growth FactorsEndothelial CellsLymphokinesForelimbFibroblast Growth Factor 2CapillariesEndothelium, VascularAngiogenesis InhibitorsVascular Endothelial Growth Factor Receptor-1Vascular Endothelial Growth Factor Receptor-2LocomotionAngiopoietin-1Angiopoietin-2Regional Blood FlowCells, CulturedReceptor, TIE-2Blood VesselsDisease Models, AnimalPregnancy ProteinsMice, Inbred C57BLCell MovementCollateral CirculationThrombospondin 1Laser-Doppler FlowmetryRats, Sprague-DawleyHuman Umbilical Vein Endothelial CellsAntigens, CD31Decerebrate StateCorneal NeovascularizationReceptors, Vascular Endothelial Growth FactorRNA, MessengerIntercellular Signaling Peptides and ProteinsMuscular AtrophyAllantoisImmunohistochemistryWeightlessness SimulationCatsTime FactorsChorioallantoic MembraneMicrocirculationSpinal CordThymidine PhosphorylaseExtremitiesChorionCell ProliferationMicrovesselsUmbilical VeinsSignal TransductionChick EmbryoAmputation StumpsMice, NudeRats, WistarPhysical Conditioning, AnimalAngiogenesis Modulating AgentsHypoxia-Inducible Factor 1, alpha SubunitFemoral ArteryCell HypoxiaElectromyographyStem CellsEndostatinsReverse Transcriptase Polymerase Chain ReactionCell DivisionMice, KnockoutBiomechanical PhenomenaRibonuclease, PancreaticLamininSpinal Cord InjuriesWound HealingMotor NeuronsRecovery of FunctionDrug CombinationsCulture Media, ConditionedReflexCysteine-Rich Protein 61Vascular Endothelial Growth Factor BUp-RegulationRetinal NeovascularizationMuscle Fibers, SkeletalElectric StimulationMuscle ContractionReceptors, Growth FactorBlotting, WesternLimb BudsGene Expression RegulationPericytesIntegrin alphaVbeta3Genetic TherapySkinNitric Oxide Synthase Type IIILumbosacral RegionMice, Transgenic