Clinical and molecular studies in five Brazilian cases of Friedreich ataxia

Friedreich ataxia (FRDA), the most common autosomal recessive ataxia, is caused in 94% of cases by homozygous expansions of an unstable GAA repeat localised in intron 1 of the X25 gene. We have investigated this mutation in five Brazilian patients: four with typical FRDA findings and one patient with atypical manifestations, who was considered to have some other form of cerebellar ataxia with retained reflexes. The GAA expansion was detected in all these patients. The confirmation of FRDA diagnosis in the atypical case may be pointing out, as in other reports, that clinical spectrum of Friedreich's ataxia is broader than previously recognised and includes cases with intact tendon reflexes.

Bibliographic Details

Main Authors:	SCHWARTZ,IDA V.D., JARDIM,LAURA B., PUGA,ANA C.S., COCOZZA,SÉRGIO, LEISTNER,SANDRA, LIMA,LUCIANE C.
Format:	Digital revista
Language:	English
Published:	Academia Brasileira de Neurologia - ABNEURO 1999
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1999000100001
Tags:	Add Tag No Tags, Be the first to tag this record!