What are spinocerebellar ataxia diseases?
There are at least 29 known types of spinocerebellar ataxia diseases (SCAs), which are rare dominant genetic disorders that result in the atrophy of the cerebellum. They are characterized by the progressive lack of coordination of muscle movements. Victims eventually lose all physical control, have slowed, slurred speech and need assistance performing daily activities. More severe forms of ataxia, such as SCA 17, are also characterized by other symptoms, including dementia and a decline in cognition that impacts emotions, memory, language and problem solving. Among the worst traits of this disease is that there is no way to predict the speed and scope of its progression. Today there are no known cures.
