Huntington's disease

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Huntington's disease (HD, Huntington's chorea) (hunt-ing-tŏnz) n. a hereditary disease caused by a defect in a single gene that is inherited as an autosomal dominant characteristic, tending to appear in half of the children of the parents with this condition. Symptoms, which begin to appear in early middle age, include unsteady gait and jerky involuntary movements (see chorea), accompanied later by behavioural changes and progressive dementia. [ G. Huntington (1850–1916), US physician]

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Huntington's disease

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Huntington's disease