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[Complement level in serum from patients with chronic hepatitis]
Insights
Complement levels in hepatitis patients correlate with disease severity and liver function markers, not HBsAg presence. Immune complexes may affect HBsAg detection.
Area of Science:
- Immunology
- Hepatology
- Biochemistry
Context:
- Investigated complement system activation in patients with chronic active hepatitis and chronic persistent hepatitis.
- Assessed various complement components (CH50, C1q, C1s, C4, C3, C5, C9, C1 Inh, C3a) in patient serum.
- Examined the relationship between complement levels and hepatitis B surface antigen (HBsAg) presence.
Purpose:
- To determine complement component levels in hepatitis patients.
- To explore correlations between complement activation and clinical/biochemical parameters.
- To investigate the influence of immune complexes on HBsAg detection.
Summary:
- Complement (C) levels in hepatitis patients are linked to bilirubin, transaminases, and immunoglobulin levels, reflecting disease severity.
- Complement changes were independent of hepatitis B surface antigen (HBsAg) presence in serum.
- Elevated C1 inhibitor (C1 Inh) correlated with complement activation intensity, and dissociated C1q/C1s levels suggested immune complexes potentially interfering with HBsAg detection.
Impact:
- Provides insights into the role of the complement system in hepatitis pathogenesis.
- Highlights the relationship between complement activation and liver injury markers.
- Suggests potential mechanisms for altered HBsAg detection in hepatitis patients.
Abstract:
In persons with chronic active hepatitis (35) and chronic persistent hepatitis (23) the CH 50 values, Clq, Cls, C4, C3, C5, and C9 as well as Cl Inh and C3A levels have been determined. The concentration changes of complement (C) were not conditioned by the existence in serum HBs. The degree of changes in values of C in all patients is in determinate relation with the levels of bilirubin, transaminases and immunoglobulins (G, M, A). The degree of determinate changes of C depends on the severity of clinical picture. The degree of Cl Inh elevation is in correlation with intensity of complement activation. The noticed dissociated values of subcomplements Clq and Cls suggest the presence of immune complexes which could influence the HBsAg detection.