Immunological disorders in C virus chronic active hepatitis: a prospective case-control study

Area of Science:

• Hepatology
• Immunology
• Virology

Background:

• Chronic hepatitis C virus (HCV) infection is associated with diverse immunological abnormalities.
• Understanding these abnormalities is crucial for comprehensive patient management.

Purpose of the Study:

• To prospectively determine the prevalence of clinical, biochemical, and pathological immunological abnormalities in chronic hepatitis C patients.
• To compare these findings with age- and sex-matched controls and chronic hepatitis B patients.

Main Methods:

• Systematic investigations included serum cryoglobulinemia and rheumatoid factor detection, anti-tissue antibody screening, labial salivary gland biopsy, ophthalmological examination, thyroid-stimulating hormone levels, and capillary microscopy.
• Patients with chronic hepatitis C (n=61) were compared to controls (n=61) and chronic hepatitis B patients (n=61).

Main Results:

• Cryoglobulinemia was found in 36% of HCV patients, with vasculitis manifestations in some.
• Rheumatoid factor was present in 70% of HCV patients.
• Anti-tissue antibodies (41%), salivary gland lesions (49%), and lichen planus (5%) were observed in HCV patients.
• Prevalence of cryoglobulinemia, rheumatoid factor, and anti-tissue antibodies was significantly higher in HCV patients than in controls and hepatitis B patients.

Conclusions:

• Chronic hepatitis C is frequently associated with significant immunological abnormalities, including cryoglobulinemia, rheumatoid factor, and autoantibodies.
• These findings highlight the systemic autoimmune impact of HCV infection.
• The immunological profile in chronic hepatitis C differs significantly from that in chronic hepatitis B.