Journal
NEUROMUSCULAR DISORDERS
Volume 12, Issue 1, Pages 19-25Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0960-8966(01)00239-5
Keywords
autosomal dominant Emery-Dreifuss muscular dystrophy; lamin A/C; contractures; myocardiopathy
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Emery-Dreifuss muscular dystrophy is characterized by the clinical triad of early onset contractures of elbows, Achilles tendons and spine, wasting and weakness with a predominantly humero-peroneal distribution and life-threatening cardiac conduction defects and/or cardiomyopathy. Two main types of inheritance have been described: the X-linked form is caused by mutations in the STA gene, on locus Xq28 and the gene for the autosomal dominant form (LMNA gene) has been localized on chromosome 1q11-q23. Recently, mutations in this LMNA gene have been also found to be responsible for the less frequent autosomal recessive form of the disease. Although all forms share a similar clinical presentation, some differences appear to exist between them as has been described recently in a large number of patients. We present the first documented Spanish family genetically confirmed to have autosomal dominant Emery-Dreifuss muscular dystrophy. Clinical, pathological and genetic data are described. We emphasize the difficulties in diagnosis, especially in sporadic cases or young patients in whom the clinical picture is not completely established. (C) 2002 Elsevier Science B.V. All rights reserved.
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