Print friendly version
Spinocerebellar ataxia 3
Other Names for this Disease
- Azorean neurologic disease
- Machado Joseph disease
- Nigrospinodentatal degeneration
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.
ataxia, clumsiness and weakness in the arms and legs, spasticity, a staggering lurching walk easily mistaken for drunkenness, difficulty with speech and swallowing, involuntary eye movements, double vision, and frequent urination. Some patients have dystonia or symptoms similar to those of Parkinson's disease. Others have twitching of the face or tongue, or bulging eyes. Symptoms can begin any time between early adolescence and about 70 years of age. Spinocerebellar ataxia 3 is a progressive disease, meaning that symptoms get worse with time. Life expectancy ranges from the mid-thirties for those with severe forms of the disorder to a normal life expectancy for those with mild forms. Spinocerebellar ataxia is inherited in an autosomal dominant pattern and is caused by a trinucleotide repeat expansion in the ataxin-3 gene (ATXN3).Spinocerebellar ataxia 3 is a rare movement disorder that is characterized by
Last updated: 5/5/2009
- Machado-Joseph Disease Fact Sheet. National Institute of Neurological Disorders and Stroke Website. April 24, 2009; http://www.ninds.nih.gov/disorders/machado_joseph/detail_machado_joseph.htm. Accessed 5/4/2009.
- Genetics Home Reference (GHR) contains information on Spinocerebellar ataxia 3. This website is maintained by the National Library of Medicine.
- The Merck Manuals Online Medical Library provides information on this condition. Click on the link to view the information.
- The National Center for Biotechnology Information (NCBI) was established in 1988 as a national resource for molecular biology information. Click on the link to view information on this topic.
- The National Institute of Neurological Disorders and Stroke (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.
- The National Organization for Rare Disorders (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.
- Spinocerebellar Ataxia: Making an Informed Choice about Genetic Testing is a booklet providing information about spinocerebellar ataxia and is available as a PDF document on the University of Washington Medical Center Web site. Click on the title above to view this resource.
In Depth Information
- The Online Mendelian Inheritance in Man (OMIM) database contains genetics resources that discuss Spinocerebellar ataxia 3. Click on the link to go to OMIM and review these resources.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Spinocerebellar ataxia 3. Click on the link to view a sample search on this topic.
- The Social Security Administration has included this condition in their Compassionate Allowances Initiative. This initiative speeds up the processing of disability claims for applicants with certain medical conditions that cause severe disability. More information about Compassionate Allowances and applying for Social Security disability is available online.