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Circulating immune complexes in chronic hepatitis as related to the presence of HBsAg
Insights
Circulating immune complexes (CIC) correlate with Hepatitis B surface antigen (HBsAg) in chronic hepatitis but not cirrhosis. Other antigens may also form CIC in chronic hepatitis.
Area of Science:
- Hepatology
- Immunology
- Virology
Background:
- Chronic liver diseases, including chronic persistent hepatitis (CPH), chronic active hepatitis (CAH), and liver cirrhosis (LC), are significant global health concerns.
- The role of immune complexes in the pathogenesis of liver disease is an area of ongoing research.
- Hepatitis B surface antigen (HBsAg) is a key marker for Hepatitis B virus infection, often associated with chronic liver conditions.
Purpose of the Study:
- To investigate the association between circulating immune complexes (CIC) and the presence of HBsAg in patients with different types of chronic liver disease.
- To determine if HBsAg is a component of CIC in these patients.
- To explore potential alternative antigens involved in CIC formation in chronic hepatitis.
Main Methods:
- Serum samples from 78 patients with chronic liver diseases (16 CPH, 39 CAH, 23 LC) were analyzed.
- Detection of circulating immune complexes (CIC) was performed.
- Presence of Hepatitis B surface antigen (HBsAg) in serum and within CIC was assessed.
Main Results:
- A significant relationship was observed between CIC and HBsAg in patients with CPH and CAH.
- This correlation was not found in patients with liver cirrhosis (LC).
- HBsAg was detected as part of CIC in only 10 out of 25 tested patients, indicating other antigens may contribute.
Conclusions:
- The presence of CIC is linked to HBsAg in chronic active and persistent hepatitis.
- The association between CIC and HBsAg is absent in liver cirrhosis.
- These findings suggest that in chronic hepatitis, antigens other than HBsAg are likely involved in the formation of CIC.
Abstract:
The relationship between the presence of circulating immune complexes (CIC) and of HBsAg in the serum of patients with chronic liver diseases was studied in a group of 78 patients of whom: 16 with chronic persistent hepatitis (CPH), 39 with chronic active hepatitis (CAH) and 23 with liver cirrhosis (LC). The results showed a clear relationship between the incidence of CIC and the presence of HBsAg in the patients with persistent or active chronic hepatitis but not in those with liver cirrhosis. The presence of HBsAg was detected in the composition of CIC in only part of the cases (10/25 patients). This low incidence suggests that in chronic hepatitis other antigens can also participate in the formation of CIC.