Satellite Cells, Skeletal MusclePAX7 Transcription FactorMuscle DevelopmentRegenerationMyoD ProteinMuscle, SkeletalCell DifferentiationDNA, SatelliteSatellite Cells, PerineuronalRNA, SatelliteSatellite CommunicationsMuscle Fibers, SkeletalSatellite VirusesMyoblastsMyogenic Regulatory Factor 5MyogeninCardiotoxinsMyostatinSatellite ImageryMice, Inbred mdxMuscular AtrophyHospitals, SatelliteCells, CulturedCobra Cardiotoxin ProteinsSpacecraftCell ProliferationMyogenic Regulatory Factors