Huntington’s Disease (HD) is a neurodegenerative disease, caused by the expansion of an unstable (CAG)n
in 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 at
onset of 35.8 14.8 years. We found no gender prevalence and an inverse correlation between size of
mutant CAG repeat sequence and age at onset, r ¼ 0.58, r 2 ¼ 33.6, Pearson’s correlation coefficient
p ¼ 0.0008. Juvenile HD in this series of patients was higher than previously reported (16.6% vs.