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Human prion diseases

J W Ironside1

  • 1Department of Pathology, University of Edinburgh, Western General Hospital, United Kingdom.

Journal of Neural Transmission. Supplementum
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

Classical prion diseases like Creutzfeldt-Jakob disease (CJD) are expanding, with new variants identified. Surveillance in the UK is investigating a potential link between bovine spongiform encephalopathy and a new CJD variant.

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Area of Science:

  • Neurology
  • Biochemistry
  • Genetics

Background:

  • Classical human prion diseases include Creutzfeldt-Jakob disease (CJD), Kuru, and Gerstmann-Sträussler-Scheinker syndrome (GSS).
  • Recent advances in prion disease research have identified a wider spectrum of human prion disorders.
  • These include Fatal Familial Insomnia and new variants of CJD and GSS, linked to prion protein (PrP) gene abnormalities.

Purpose of the Study:

  • To review clinical and pathological features of human prion diseases in light of recent biochemical and molecular biology advances.
  • To investigate the potential implications of bovine spongiform encephalopathy (BSE) for human health.
  • To assess the significance of a newly identified CJD variant in young UK patients.

Main Methods:

  • Review of clinical and pathological features of human prion diseases.

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  • Biochemical and molecular biology analysis of transmissible agents.
  • National surveillance project for CJD in the United Kingdom established in 1990.
  • Monitoring for new CJD variants and potential links to animal diseases.

    • Main Results:

    • A broadening spectrum of human prion diseases has been identified, including novel entities.
    • Specific abnormalities in the human prion protein (PrP) gene are associated with some variants.
    • A new variant of CJD has been identified in young patients in the UK.
    • PrP accumulation in the central nervous system is a common feature, but its relationship with genotype and pathology requires further study.

    Conclusions:

    • The classification and understanding of human prion diseases are evolving.
    • The identification of a new CJD variant in the UK warrants further investigation for a potential link to BSE.
    • Continued surveillance and research are crucial for clarifying the relationship between PrP, neuropathology, clinical presentation, and genotype in prion diseases.