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Clinical and genetic characteristics in patients with Huntington's Disease from Argentina

Emilia Gatto1, Virginia Parisi, Gabriel Persi

  • 1Department of Movement Disorders, Instituto Neurociencias de Buenos Aires (INEBA), Buenos Aires, Argentina. emiliagatto@fibertel.com.ar

Parkinsonism & Related Disorders
|October 4, 2011
PubMed

Insights

This study presents the first demographic, clinical, and molecular data for Huntington

Area of Science:

  • Neurogenetics
  • Neurology
  • Human Genetics

Background:

  • Huntington's Disease (HD) is a neurodegenerative disorder caused by an unstable CAG repeat expansion in the HTT gene.
  • Limited data exists regarding the prevalence and characteristics of HD in Argentina.

Purpose of the Study:

  • To characterize the demographic, clinical, and molecular profiles of Huntington's Disease patients in Argentina.
  • To establish a baseline understanding of HD in a previously underrepresented population.

Main Methods:

  • Recruitment of 59 Huntington's Disease patients from a single department.
  • Inclusion of comprehensive patient interviews, neurological examinations, and genetic analysis.
  • Statistical analysis utilizing G-Stat 2.0 and non-parametric Wilcoxon tests.

Main Results:

  • A cohort of 32 women and 27 men with a mean age of 45.7 years and mean age at onset of 35.8 years.
  • No significant gender prevalence observed; inverse correlation between CAG repeat size and age at onset (r=-0.58, p=0.0008).
  • Higher incidence of juvenile Huntington's Disease (16.6%) than previously reported; mean CAG repeat of 45.1 in affected alleles.

Conclusions:

  • This study provides the first comprehensive dataset for Argentinean Huntington's Disease patients.
  • Demographic, clinical, and molecular findings are comparable to those reported in Western European populations.
  • Highlights the need for further research and clinical attention to HD in Argentina.
Abstract

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