DystrophinMuscular Dystrophy, DuchenneMuscular DystrophiesMice, Inbred mdxMuscular Dystrophy, AnimalUtrophinDystrophin-Associated ProteinsExonsDystroglycansSarcolemmaMuscle, SkeletalHeterozygote DetectionSarcoglycansCardiomyopathy, DilatedCreatine Kinase, MM FormSequence DeletionPolymerase Chain ReactionMolecular Sequence DataMusclesRNA SplicingBase SequencePedigreeX ChromosomeMuscle Fibers, SkeletalMuscle ProteinsMutationCytoskeletal ProteinsGenetic TherapyMyoblastsGene DeletionIntronsPhenotypeCodon, NonsenseDNA Mutational AnalysisChromosome DeletionFrameshift MutationMice, Inbred C57BLGene Transfer TechniquesMolecular Diagnostic TechniquesPoint MutationGenetic LinkageCreatine KinaseGenetic VectorsImmunohistochemistryOligonucleotides, AntisenseBlotting, WesternMorpholinosDystrophin-Associated Protein ComplexHeterozygoteBlotting, SouthernRNA, MessengerDNAAmino Acid SequenceAlternative SplicingDNA PrimersMyocardiumOligoribonucleotides, AntisenseDisease Models, AnimalGene ExpressionGene DuplicationDNA Probes