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Understanding Ataxia and Its Link to Huntington's Disease: Insights from a Recent Study

In a groundbreaking study published in Frontiers in Neurology in 2020, researchers led by Gustavo L. Franklin et al. have highlighted the often-underestimated symptom of ataxia in Huntington's Disease (HD). This article aims to break down the complex medical jargon into a more understandable language, shedding light on how ataxia relates to HD.

What is Ataxia?

Ataxia is a neurological condition marked by a lack of muscle control or coordination of voluntary movements. It can manifest as unsteady movements, clumsiness, or difficulty with tasks requiring fine motor skills. Ataxia is not a disease itself but a symptom of various neurological disorders, including Huntington's Disease.

Huntington's Disease at a Glance

Huntington's Disease is a progressive brain disorder known for causing uncontrolled movements, emotional problems, and loss of cognition. It's a genetic condition caused by a mutation in the HTT gene, leading to the gradual breakdown of nerve cells in the brain.

The Study's Key Findings


The study aimed to determine how prevalent cerebellar ataxia is in HD patients, both in early and late stages of the disease.


The research involved 72 individuals with HD, who were evaluated using various scales and tests, including the Scale for Assessment and Rating of Ataxia (SARA) and the Unified Huntington's Disease Rating Scale (UHDRS).


  • Ataxia Prevalence: 70.8% of the patients showed clinical ataxia, with 8.33% presenting it as their first symptom.

  • Symptom Progression: There was a notable decline in chorea (a type of movement disorder) and an increase in cognitive deficits as HD progressed.

  • Association with Disease Severity: The presence of ataxia was linked to longer illness duration and greater severity, as indicated by the UHDRS.


The study concludes that cerebellar involvement is significant in HD and ataxia should be recognized as a key symptom in the disease’s progression.

Implications of the Study

The findings are crucial for understanding HD more comprehensively. Recognizing ataxia as a significant symptom of HD can lead to better diagnosis and management strategies for patients. This also challenges the traditional view of HD symptoms, expanding the clinical understanding of the disease.


This study underscores the importance of considering cerebellar ataxia as a significant component in the manifestation and progression of Huntington's Disease. For those dealing with HD, awareness of ataxia can be crucial in managing the condition more effectively.

This article is based on the study "Is Ataxia an Underestimated Symptom of Huntington's Disease?" by Gustavo L. Franklin et al., published in Frontiers in Neurology.



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