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Huntington's disease is a movement disorder characterized by chorea and dementia. It is inherited in an autosomal dominant manner and occurs throughout the world, in all ethnic groups.
Clinical Findings
Clinical onset is usually between 30 and 50 years of age. The disease is progressive and usually leads to a fatal outcome within 15B20 years. The initial symptoms may consist of tremor.
Chorea developing with no family history of choreoathetosis should not be attributed to Huntington's disease, at least not until other causes of chorea have been found
Treatment
There is no cure for Huntington's disease, progression cannot be halted, and treatment is purely symptomatic. The reported biochemical changes suggest a relative underactivity of neurons containing gamma-aminobutyric acid (GABA) and acetylcholine or a relative overactivity of dopaminergic neurons. Treatment with drugs blocking dopamine receptors, such as phenothiazines or haloperidol, may control.
Offspring should be offered genetic counseling. Now that the gene responsible.