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Serum hepatitis C virus sequences in posttransfusion non-A, non-B hepatitis
M Shibata1, T Morishima, T Kudo
1Department of Pediatrics, Nagoya University School of Medicine, Japan.
Blood
|March 15, 1991
Summary
Hepatitis C virus (HCV) RNA can persist even with normal liver function tests. Polymerase chain reaction (PCR) aids in diagnosing persistent HCV infection and identifying cases negative for anti-HCV antibodies.
Area of Science:
- Hepatology
- Virology
- Immunology
Background:
- Post-transfusion hepatitis C virus (HCV) infection presents diverse clinical courses.
- Understanding the relationship between clinical presentation and viral markers is crucial for patient management.
Purpose of the Study:
- To investigate the correlation between clinical outcomes and hepatitis C virus (HCV) markers in patients with post-transfusion non-A, non-B hepatitis.
- To assess the utility of polymerase chain reaction (PCR) in detecting persistent HCV infection.
Main Methods:
- 17 patients with post-transfusion hepatitis were categorized by alanine aminotransferase (ALT) levels: chronic biochemical disease, resolved chronic disease, and acute disease.
- Serum samples were tested for anti-HCV antibodies using ELISA and for HCV RNA using PCR.
- Long-term follow-up (1.3-10.8 years) was performed.
Main Results:
- HCV RNA was detected in 75% of patients with chronic biochemical disease and 40% with resolved chronic disease.
- 82.4% of patients tested positive for at least one HCV marker (anti-HCV or HCV RNA).
- HCV RNA was undetectable in patients with acute disease, but PCR identified HCV infection in some anti-HCV negative cases.
Conclusions:
- Clinical status correlates with HCV viremia, but normal liver function tests do not guarantee viral clearance.
- Persistent HCV viremia, even with normal ALT levels, suggests complex pathogenesis involving immune responses.
- PCR is valuable for diagnosing persistent HCV infection and identifying anti-HCV negative cases.