Muscular Dystrophy, Duchenne Type; DMD | DuchenneXchange

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Muscular Dystrophy, Duchenne Type; DMD

key information

source: Online Mendelian Inheritance in Man

summary/abstract:

Dystrophin-associated muscular dystrophies range from the severe Duchenne muscular dystrophy (DMD) to the milder Becker muscular dystrophy (BMD; 300376). Mapping and molecular genetic studies indicate that both are the result of mutations in the huge gene that encodes dystrophin, also symbolized DMD.

Approximately two-thirds of the mutations in both forms are deletions of one or many exons in the dystrophin gene. Although there is no clear correlation found between the extent of the deletion and the severity of the disorder, DMD deletions usually result in frameshift.

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