Friedreich ataxia (FRDA) is an autosomal recessive disorder, the most common of the inherited ataxias. It has an estimated prevalence of 1 in 50 000 and a carrier frequency of about 1 in 90 in Caucasians (Cosse Β΄e et al., 1997;Leone et al., 1990). It is extremely rare among the Chinese and Japanese
Prenatal diagnosis of friedreich ataxia
β Scribed by Wallis, J. ;Shaw, J. ;Wilkes, D. ;Farrall, M. ;Williamson, R. ;Chamberlain, S. ;Skare, J. C. ;Milunsky, A.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 289 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0148-7299
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Approximately 95% of all Friedreich's ataxia (FA) patients are homozygous for a large GAA triplet-repeat expansion in the first intron of the Friedreich's ataxia gene (FRDA). The remaining cases are expected to be compound heterozygous with a GAA expansion on one allele and a point mutation on the o
Friedreich ataxia is an autosomal recessive disorder caused by mutations in the FRDA gene that encodes a 210-amino acid protein called frataxin. An expansion of a GAA trinucleotide repeat in intron 1 of the gene is present in more than 95% of mutant alleles. Of the 83 people we studied who have muta