Huntington’s Disease (HD) is a neurodegenerative disease, caused by the expansion of an unstable (CAG)nin the HTT gene. There is scarce data about the disease in Argentina.Objective: To describe the demographic, clinical and molecular data in patients with HD from Argentina.Patients and methods: 59 HD patients were recruited at our department.Comprehensive interviews, neurological examination and genetic analysis were performed in probands.Statistical analysis was conducted using G-Stat 2.0 and non-parametric tests (Wilcoxon).Results: 32 women and 27 men were diagnosed with a mean age of 45.7 16.2 years and a mean age atonset of 35.8 14.8 years. We found no gender prevalence and an inverse correlation between size ofmutant CAG repeat sequence and age at onset, r ¼ 0.58, r 2 ¼ 33.6, Pearson’s correlation coefficientp ¼ 0.0008. Juvenile HD in this series of patients was higher than previously reported (16.6% vs. <10%). The meanCAG repeat in the expanded allele was 45.1. The number of CAG repeats in Argentinean controls was 17.8,which is similar to the literature of the European population. Conclusions: This is the first series of Argentinean HD patients with demographic, clinical and molecular data. Our findings appear similar to the ones described in Western European populations.
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