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Immune complexes in polyarthritis after Salmonella gastroenteritis
The Journal of Rheumatology
|July 1, 1981
Summary
Salmonella gastroenteritis can trigger polyarthritis by forming circulating immune complexes (CIC). These complexes activate complement pathways, potentially driving joint inflammation in reactive arthritis.
Area of Science:
- Immunology
- Rheumatology
- Infectious Diseases
Background:
- Salmonella gastroenteritis is a common infection.
- Reactive arthritis can occur following infections.
- The role of immune complexes in post-infectious arthritis requires further elucidation.
Observation:
- In a patient with polyarthritis following Salmonella gastroenteritis, elevated circulating immune complexes (CIC) levels were observed.
- CIC levels closely paralleled the activity of the joint disease.
Findings:
- Systemically absorbed Salmonella antigens are suggested to contribute to CIC formation.
- CIC activate both classical and alternative complement pathways.
Implications:
- CIC may play a significant role in the pathogenesis of Salmonella-associated arthritis.
- Understanding CIC formation could lead to targeted therapies for reactive arthritis.