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Huntington's disease in five siblings

M C Wong1, I S Ng, S H Lim

  • 1Neurology Unit, Singapore General Hospital.

Annals of the Academy of Medicine, Singapore
|May 1, 1993
PubMed
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Huntington's disease, a rare neurodegenerative disorder, was studied in a large Singaporean family. This research documents the largest kindred identified in Singapore, highlighting the genetic transmission of this condition.

Area of Science:

  • Neurodegenerative Diseases
  • Genetics
  • Neurology

Background:

  • Huntington's disease is an autosomal dominant neurodegenerative disorder.
  • It is characterized by progressive chorea and dementia.
  • The condition is rare in Singapore.

Observation:

  • Five siblings with Huntington's disease were treated and followed over seven years at Singapore General Hospital.
  • Family history revealed five deceased affected individuals and two living affected siblings.
  • The kindred included over 35 at-risk offspring across two generations.

Findings:

  • The study identified the largest known kindred with Huntington's disease in Singapore.
  • Genetic analysis indicated a 50% probability of gene carriage in at-risk offspring.

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  • This highlights significant hereditary transmission within the family.

    • Implications:

    • This case study provides valuable insights into the prevalence and familial transmission of Huntington's disease in Singapore.
    • Understanding the genetic burden is crucial for genetic counseling and patient management.
    • Further research may elucidate specific genetic or environmental factors influencing disease presentation in this population.