The limb-girdle muscular dystrophies are a clinically and genetically heterogeneous group of disorders. Recent linkage analyses and positional cloning studies have identified numerous loci responsible for the recessive and dominant forms, underscoring the inherent heterogeneity. In this report, we investigate four large autosomal dominant limb-girdle pedigrees and exclude these pedigrees from linkage to these loci. In addition, there is no evidence for linkage to any of the seven recessive LGMD loci.
- Limb-girdle muscular dystrophy
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