<unk>  <unk>  is a late-onset degenerative disease involving the gradual deterioration and death of specific volumes of the brain. The condition leads to symptoms including loss of balance, slowing of movement, difficulty moving the eyes, and cognitive impairment.<unk>  may be mistaken for other neurodegenerative diseases such as Parkinson's, frontotemporal dementia and Alzheimer's. The cause of the condition is uncertain, but involves accumulation of tau protein within the brain. Medications such as levodopa and amantadine may be useful in some cases.<unk>  affects about six people per 100,000. The first symptoms typically occur at 60–70 years of age. Males are slightly more likely to be affected than females. No association has been found between<unk>  and any particular race, location, or occupation.
Progressive supranuclear palsy
Frontotemporal dementia and parkinsonism linked to chromosome 17
Multiple system atrophy
Corticobasal degeneration
Parkinson-plus syndrome
Parkinson's disease
Benign hereditary chorea
Alzheimer's disease