Edward Clinton Smith

Duke University Medical Center, Durham, North Carolina, United States

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Publications (1)2.31 Total impact

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    ABSTRACT: Exercise intolerance with myalgia, muscle stiffness, and recurrent rhabdomyolysis due to mutations in the DMD gene can mimic metabolic myopathies leading to delayed or inaccurate diagnoses. In this retrospective chart review, we report 3 unrelated boys with exertional myalgia, muscle stiffness, myoglobinuria, and normal neurological examination due to an identical point mutation in the DMD gene: a hemizygous T-to-C change in exon 15 (c.1724T>C) resulting in an amino acid substitution of leucine to proline at codon 575. Two of the 3 boys had normal dystrophin immunostaining and Western blot analysis in muscle. This missense mutation has been reported twice before, with at least 1 patient exhibiting rhabdomyolysis. Our report, however, is the first to describe in detail the clinical findings associated with this specific mutation. Further studies and clinical reports are needed to better understand the pathogenicity of the mutation.
    Muscle & Nerve 12/2010; 42(6):975-9. · 2.31 Impact Factor

Publication Stats

3 Citations
2.31 Total Impact Points

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Institutions

  • 2010
    • Duke University Medical Center
      • Division of Neurology
      Durham, North Carolina, United States