Muscle DevelopmentMusclesMuscle, SkeletalMuscle ProteinsMuscle, SmoothMuscle Fibers, SkeletalMyoblastsMyoD ProteinMyocytes, Smooth MuscleMyogeninMuscle CellsMyogenic Regulatory Factor 5Muscle ContractionMuscle, Smooth, VascularCells, CulturedMyoblasts, SkeletalCell DifferentiationMyogenic Regulatory FactorsMuscle Fibers, Fast-TwitchSatellite Cells, Skeletal MuscleMuscle Fibers, Slow-TwitchMuscle DenervationMuscle FatigueAortaMuscle, StriatedMitochondria, MuscleRNA, MessengerGene Expression Regulation, DevelopmentalDesminPAX7 Transcription FactorSignal TransductionMuscle RelaxationCell LineRegenerationNeck MusclesOculomotor MusclesGene Expression RegulationMyosin Heavy ChainsSomitesMEF2 Transcription FactorsMuscle SpindlesCalciumRespiratory MusclesPapillary MusclesFacial MusclesMuscle WeaknessChick EmbryoCell DivisionTime FactorsMuscular AtrophyRabbitsRats, Sprague-DawleyMuscular DiseasesTranscription FactorsActinsQuadriceps MuscleAbdominal MusclesImmunohistochemistryMolecular Sequence DataCell FusionMyofibrilsMasseter MuscleIsometric ContractionMasticatory MusclesMyostatinPlatelet-Derived Growth FactorIntercostal MusclesBase SequencePaired Box Transcription FactorsAorta, ThoracicCreatine KinaseGene ExpressionElectromyographyMesodermPhosphorylationCell ProliferationDNA-Binding ProteinsCell MovementMice, Inbred C57BLPectoralis MusclesTranscription, GeneticBlotting, WesternTransfectionHindlimbMice, KnockoutModels, BiologicalHypertrophyExtremitiesEnzyme InhibitorsRats, WistarDose-Response Relationship, DrugPhenotypeMyocardiumMembrane PotentialsArteriesProto-Oncogene Proteins c-sisElectric StimulationTrans-ActivatorsTunica IntimaIn Situ Hybridization