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. 1996 Sep;33(9):783–785. doi: 10.1136/jmg.33.9.783

Homozygous myotonic dystrophy: clinical and molecular studies of three unrelated cases.

L Martorell 1, I Illa 1, J Rosell 1, J Benitez 1, M J Sedano 1, M Baiget 1
PMCID: PMC1050736  PMID: 8880582

Abstract

We report the clinical and molecular study of three unrelated homozygous myotonic dystrophy patients. In the first family, the homozygous patient shows the classical form of the disease with two DM alleles of very different expansion sizes (1000 and 60 repeats). In the second family, the homozygous patient is mildly affected and carries a minimally expanded allele (64 repeats) and a "normal" allele (38 repeats) that increases in size when transmitted. Such an intergenerational expansion of an allele in this range of repeats has not been reported to date. The third homozygous case has late onset bilateral cataracts as the only symptom. She has two minimally expanded alleles (51 and 120 repeats) that showed different intergenerational enlargement during transmission to the next generation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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