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Related Experiment Videos

Rheumatic disorders associated with streptococcal infections.

E K Li1

  • 1Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong.

Bailliere'S Best Practice & Research. Clinical Rheumatology
|September 14, 2000
PubMed
Summary

Streptococcus cell wall proteins are linked to rheumatic diseases. Antibodies against these proteins and molecular mimicry explain acute rheumatic fever and related post-streptococcal reactive arthritis.

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Area of Science:

  • Microbiology
  • Immunology
  • Rheumatology

Background:

  • Streptococcus cell wall proteins play diverse roles, with some indicating rheumatological potential.
  • Elevated antibodies against specific Streptococcus proteins are observed in acute rheumatic fever patients.
  • The molecular mimicry theory explains the link between Streptococcus bacteria and acute rheumatic fever.

Purpose of the Study:

  • To explore the role of Streptococcus proteins in rheumatological conditions.
  • To understand the connection between Streptococcus infection and reactive arthritis.
  • To highlight the significance of pyogenic arthritis caused by Streptococcus.

Main Methods:

  • Analysis of Streptococcus cell wall proteins.
  • Immunological assays to detect antibodies.

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  • Clinical case reviews for post-streptococcal reactive arthritis and pyogenic arthritis.

    • Main Results:

    • Certain Streptococcus proteins are identified as markers for rheumatological potential.
    • High antibody levels against these proteins correlate with acute rheumatic fever.
    • Post-streptococcal reactive arthritis is increasingly recognized, distinct from Jones' criteria.
    • Pyogenic arthritis due to Streptococcus is a common and severe joint infection.

    Conclusions:

    • Streptococcus proteins are crucial in the pathogenesis of rheumatic fever and related arthritic conditions.
    • Molecular mimicry is a key mechanism linking Streptococcus infection to these diseases.
    • Prompt diagnosis and treatment of Streptococcus-induced pyogenic arthritis are essential.