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[Hepatitis C]

T Matsushima1, Y Karino, S Hige

  • 1The 3rd Department of Internal Medicine, Hokkaido University School, Sapporo.

Rinsho Byori. the Japanese Journal of Clinical Pathology
|March 1, 1993
PubMed
Summary

Hepatitis C virus (HCV) infection, a leading cause of liver disease, shows specific genotype prevalence. Interferon therapy offers a complete response in 42.9% of patients with chronic active hepatitis.

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Area of Science:

  • Virology
  • Hepatology
  • Immunology

Context:

  • Hepatitis C virus (HCV) is a significant cause of post-transfusion hepatitis.
  • HCV possesses a positive-strand RNA genome of approximately 9,400 nucleotides.
  • The E2 envelope glycoprotein contains isolate-specific antibody-binding epitopes.

Purpose:

  • To classify HCV genotypes and determine their prevalence.
  • To evaluate the efficacy of interferon therapy in patients with chronic active hepatitis C.
  • To assess viral clearance rates following interferon treatment.

Summary:

  • Comparative sequence analysis reveals six basic HCV genotype groups.
  • HCV-I, HCV-II, and mixed forms show prevalences of 77.2%, 11.4%, and 11.4%, respectively.
  • Interferon-alpha/beta treatment for 16 weeks resulted in a 42.9% complete response rate, defined by normalized ALT levels for six months post-treatment.

Impact:

  • This study contributes to understanding HCV genotype distribution.
  • It demonstrates the effectiveness of interferon therapy in managing chronic active hepatitis C.
  • High rates of sustained virologic response (71.0% at six months post-treatment) highlight interferon's therapeutic potential.

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