Abstract
Described is a large family with an autosomal dominant dementia associated with an H187R mutation in the prion protein gene (PRNP). Clinical features include neuropsychiatric disturbances in childhood and adolescence, dementia in young adulthood with frontotemporal manifestations, and long disease duration. Neuropathology revealed atrophy and mild gliosis, whereas prion protein analysis revealed an abnormal conformer with unusual sensitivity to protease digestion. Mutations in PRNP may cause neuropsychiatric disorders that predate dementia by many years.
Publication types
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Case Reports
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adolescent
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Adult
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Age of Onset
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Brain / metabolism
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Brain / pathology
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Brain / physiopathology
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Child
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DNA Mutational Analysis
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Dementia / complications
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Dementia / genetics*
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Dementia / physiopathology
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Disease Progression
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Female
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Genetic Predisposition to Disease / genetics
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Genetic Testing
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Humans
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Intellectual Disability / complications
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Intellectual Disability / genetics*
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Intellectual Disability / physiopathology
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Male
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Mental Disorders / complications
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Mental Disorders / genetics*
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Mental Disorders / physiopathology
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Middle Aged
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Mutation / genetics
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Neurons / metabolism
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Neurons / pathology
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Pedigree
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Prion Diseases / complications
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Prion Diseases / genetics*
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Prion Diseases / physiopathology
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Prions / genetics*
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Prions / metabolism