Health / Medical Topics

    Creutzfeldt-Jakob Disease

    Definition 1

    A rare transmittable degenerative disorder of the brain caused by prions. Morphologically it is characterized by spongiform degeneration of the cerebral and cerebellar cortex. Signs and symptoms include sleep disturbances, personality changes, aphasia, ataxia, muscle atrophy and weakness, visual loss, and myoclonus. It usually leads to death within a year from the onset of the disease. (NCI Thesaurus)

    Definition 2

    A rare transmissible encephalopathy most prevalent between the ages of 50 and 70 years. Affected individuals may present with sleep disturbances, personality changes, ATAXIA; APHASIA, visual loss, weakness, muscle atrophy, MYOCLONUS, progressive dementia, and death within one year of disease onset. A familial form exhibiting autosomal dominant inheritance and a new variant CJD (potentially associated with ENCEPHALOPATHY, BOVINE SPONGIFORM) have been described. Pathological features include prominent cerebellar and cerebral cortical spongiform degeneration and the presence of PRIONS. (From N Engl J Med, 1998 Dec 31;339(27)) (NLM, Medical Subject Headings)

    More information

    Creutzfeldt-Jakob disease (CJD) is a rare, degenerative brain disorder. Symptoms usually start around age 60. Memory problems, behavior changes, vision problems, and poor muscle coordination progress quickly to dementia, coma, and death. Most patients die within a year.

    The three main categories of CJD are

    • Sporadic CJD, which occurs for no known reason
    Hereditary CJD, which runs in families
    Acquired CJD, which occurs from contact with infected tissue, usually during a medical procedure

    Cattle can get a disease related to CJD called bovine spongiform encephalopathy (BSE) or "mad cow disease." There is concern that people can get a variant of CJD from eating beef from an infected animal, but there is no direct proof to support this. (NIH: National Institute of Neurological Disorders and Stroke)

    Also called: CJD, Jakob-Creutzfeldt Disease, Mad Cow Disease, BSE, Bovine Spongiform Encephalopathy, vCJD




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