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[Chronic liver disease exacerbated during alpha-interferon treatment]
F Rodríguez Moreno1, C E González Reimers, F Santolaria Fernández
1Departamento de Medicina Interna, Hospital Universitario de Canarias, La Laguna, Tenerife.
Alpha interferon therapy can cause significant liver injury, indicated by elevated bilirubin and transaminases. Prompt drug withdrawal and corticosteroid treatment normalized liver function tests in a patient with chronic active hepatitis.
Area of Science:
- Hepatology
- Immunology
- Pharmacology
Background:
- A 27-year-old male with chronic active hepatitis (negative HBV/HCV markers) presented with elevated liver enzymes.
- Previous treatment history included management for persistent mild transaminase elevation.
Observation:
- After initiating alpha interferon therapy, the patient experienced marked elevations in serum bilirubin, ASAT, and ALAT.
- Pre-existing autoantibodies (antinuclear, anti-smooth muscle, antimitochondrial) were negative, but anti-smooth muscle antibodies became positive post-interferon treatment.
Findings:
- Alpha interferon therapy precipitated significant drug-induced liver injury (DILI).
- The development of anti-smooth muscle antibodies correlated with interferon treatment and liver enzyme elevation.
Implications:
- This case highlights the potential hepatotoxicity of alpha interferon, even in patients with pre-existing liver conditions.
- Monitoring liver function and autoantibody profiles during interferon therapy is crucial for early detection and management of DILI.
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