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Protocol proposal for Friedreich ataxia molecular diagnosis using fluorescent and triplet repeat primed polymerase chain reaction

Friedreich ataxia (FRDA) is the most common hereditary ataxia that is caused mainly by an unstable GAA trinucleotide expansion in the first intron of the frataxin gene. Molecular tests for FRDA diagnosis and carrier detection include polymerase chain reaction (PCR) for the GAA expansion, triplet repeat primed PCR (TP-PCR), and/or Southern blotting. TP-PCR is a method developed to detect trinucleotide expansions successfully applied to FRDA diagnosis. In our laboratory, we have included a PCR for the GAA expansion using fluorescent primers polymerase chain reaction (F-PCR) to identify normal heterozygous and affected individuals unambiguously.

Protocol proposal for Friedreich ataxia molecular diagnosis using fluorescent and triplet repeat primed polymerase chain reaction

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