[Myotonic dystrophy: study of clinico-genetic correlation in a pair of relatives (father-son)].

Abstract

We report the case of a child with myotonic dystrophy (DM) with symptoms beginning at the age of seven, whose genetic study showed an additional DNA fragment, greater than of his father, an asymptomatic carrier. The clinical and molecular analysis of this parent-child pair are probably the first described in Brazil, since the recent discovery of genetic abnormality in DM by American and European researchers, that explained the long-debated phenomenon of "anticipation" in this disease. The main advances in molecular genetics in DM and its correlation with increasing severity and earlier onset of the symptoms in successive generations of a family are commented briefly.

• Authors: U C Reed, M R Passos-Bueno, S K Nagahashi-Marie, A Cerqueira, L I Mendonça, J A Levy, A Diament, M Zatz
• Journal: Arquivos de neuro-psiquiatria (Arq Neuropsiquiatr) Vol. 52 Issue 4 Pg. 545-8 (Dec 1994) ISSN: 0004-282X [Print] Germany
• Vernacular Title: Distrofia miotônica. Estudo da correlação clínico-genética em um par familiar (pai-filho).
• PMID: 7611950 (Publication Type: Case Reports, English Abstract, Journal Article)

Chemical References

• DNA

Topics

• Child
• DNA (analysis)
• Humans
• Karyotyping
• Male
• Myotonic Dystrophy (genetics)