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prion

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prion

[′prī‚än]
(biochemistry)
Any of a group of infectious proteins that cause fatal neurodegenerative diseases in humans and animals, including scrapie and bovine spongiform encephalopathy in animals and Creutzefeldt-Jakob disease and Gerstmann-Straussler-Scheinker disease in humans.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
In contrast to virtually all other sporadic human prion diseases, in which PK-resistant Pr[P.sup.D] (resPr[P.sup.D]) electrophoretically separates into 3 major bands, VPSPr resPr[P.sup.D] characteristically separates into 5 bands.
Over the years, other prion diseases have been identified in both humans and animals (Table 1).
"Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, lethal neurodegenerative disease caused by aggregation of misfolded prion proteins.
Despite a large number of information favoring infectious agent generated from the protein, the involvement of a slow virus or a nucleic acid in the prion disease has not been ruled out [17-19].
Prion diseases cause brain damage that worsens rapidly over time and are invariably fatal.
"Prion transmission risk from surgical instruments contaminated by skin prions should be much lower than that of instruments contaminated by brain tissue."
He presented his research findings related to involvement of Prions in Alzheimer's disease.
A related prion illness is Chronic Wasting Disease (CWD) and it has been identified in deer, elk and moose in North America.
An easy-to-use diagnostic test would let doctors clearly differentiate prion diseases from other brain maladies.
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