Repeat length in spinocerebellar ataxia type 4 (SCA4) predicts age at onset and disease severity

Abstract excerpt

BACKGROUND: Recently, an exonic GGC repeat expansion (RE) was identified by long-read genome sequencing in the ZFHX3 gen, causing spinocerebellar ataxia type 4 (SCA4), a dominant form of ataxia with sensory neuropathy. However, the analysis of larger cohorts of patients remained demanding, resulting in a challenge to diagnose patients and leaving the question of anticipation in SCA4 unanswered. OBJECTIVES: We...

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