Satellite Cells, Skeletal MusclePAX7 Transcription FactorMuscle DevelopmentRegenerationMyoD ProteinMuscle, SkeletalCell DifferentiationDNA, SatelliteSatellite Cells, PerineuronalRNA, SatelliteSatellite CommunicationsMuscle Fibers, SkeletalSatellite VirusesMyoblastsMyogenic Regulatory Factor 5MyogeninCardiotoxinsMyostatinCells, CulturedSatellite ImageryMice, Inbred mdxMuscular AtrophyCell ProliferationHospitals, SatelliteStem CellsCobra Cardiotoxin ProteinsSpacecraftCell SeparationMyogenic Regulatory Factors