Clinical features and skewed X-chromosome inactivation in female carriers of X-linked recessive spinal and bulbar muscular atrophy
β Scribed by Hiroyuki Ishihara; Fumio Kanda; Hisahide Nishio; Kimiaki Sumino; Kazuo Chihara
- Publisher
- Springer
- Year
- 2001
- Tongue
- English
- Weight
- 207 KB
- Volume
- 248
- Category
- Article
- ISSN
- 0340-5354
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X-linked spinal and bulbar muscular atrophy (SBMA) is a late-onset motor neuron disorder which is caused by an expansion of the trinucleotide repeat (CAG), in the first exon of the androgen receptor gene. Two cases of prenatal testing for the disease in a Greek family are reported. An affected male
A new X-linked recessive deafness syndrome was recently reported and mapped to Xq22 (Mohr-Tranebjaerg syndrome). In addition to deafness, the patients had visual impairment, dystonia, fractures, and mental deterioration. The female carriers did not have any significant manifestations of the syndrome
Expansion of trinucleotide repeats has now been associated with eight inherited diseases: X-linked spinal and bulbar muscular atrophy, two fragile X syndromes, myotonic dystrophy, Huntington's disease, spinocerebellar ataxia type I, dentatorubral pallidoluysian atrophy and Machado-Joseph disease. It