Related Experiment Videos
Yersinia enterocolitica: an inducer of chronic inflammation
Abstract:
The aim of the present study was to elucidate the connection between yersiniosis and chronic inflammation. During the period 1974-83, Yersinia enterocolitica infection was diagnosed in 458 hospitalized patients by antibody response, or isolation. The patients were followed for 4-14 years (1987); 160 were readmitted with chronic disease. Fifty-three patients had persistent joint complaints, 18 developed ankylosing spondylitis, 14 rheumatoid arthritis, and 17 iridocyclitis. Thirty-eight patients suffered from chronic abdominal pain, and another 28 from chronic diarrhoea. Two who underwent proctocolectomy microscopically had ulcerative colitis. Eleven patients developed neurological disease; others developed conditions such as chronic nephritis, thyroid disease, insulin-dependent diabetes, etc. Chronic hepatitis, found in 22 patients, was significantly correlated with positive test for antinuclear antibody and rheumatoid factor, and with death. Several patients developed chronic multiorgan disease, probably with chronic hepatitis as pivot. Regarding the whole material, the difference between observed and expected cumulative survival rates remained significant for 8 years (0.9189 < 0.9456; p < 0.025), indicating a substantial impact on long-term survival exerted by chronic yersiniosis.
Insights
Yersinia enterocolitica infection can lead to chronic inflammation and long-term health issues, including joint pain, gastrointestinal problems, and even affect survival rates. This study highlights the persistent impact of yersiniosis on patient health.
Area of Science:
- Infectious Diseases
- Immunology
- Gastroenterology
Background:
- Yersiniosis, caused by Yersinia enterocolitica, is a significant public health concern.
- The long-term sequelae of Yersinia enterocolitica infection, particularly chronic inflammatory conditions, require further investigation.
Purpose of the Study:
- To investigate the association between Yersinia enterocolitica infection and the development of chronic inflammatory diseases.
- To assess the long-term health outcomes and survival rates in patients with a history of yersiniosis.
Main Methods:
- A cohort of 458 patients diagnosed with Yersinia enterocolitica infection between 1974-1983 was followed for 4-14 years.
- Data collection included readmission records, clinical assessments of chronic conditions, and survival analysis.
Main Results:
- 160 patients experienced readmission for chronic diseases, including persistent joint complaints (53), ankylosing spondylitis (18), rheumatoid arthritis (14), iridocyclitis (17), chronic abdominal pain (38), and chronic diarrhea (28).
- Chronic hepatitis was observed in 22 patients, significantly correlated with antinuclear antibody and rheumatoid factor positivity, and mortality.
- A significant impact on long-term survival was noted, with observed cumulative survival rates differing from expected rates for up to 8 years post-infection (p < 0.025).
Conclusions:
- Yersiniosis can precipitate a range of chronic inflammatory conditions, affecting multiple organ systems.
- Chronic inflammation following Yersinia enterocolitica infection has a substantial and significant impact on long-term patient survival.
- Early diagnosis and management of yersiniosis are crucial to mitigate long-term health consequences.