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Viral hepatitis in 2003.

Scott K Fung¹, Anna S F Lok

¹Division of Gastroenterology, University of Michigan, Ann Arbor, Michigan, USA.

Current Opinion in Gastroenterology

|February 11, 2005

Summary

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This review highlights 2003 research on hepatitis B and C. Adefovir dipivoxil shows promise for hepatitis B, while new hepatitis C treatments are emerging.

Area of Science:

Hepatology
Virology
Infectious Diseases

Background:

Viral hepatitis remains a significant global health concern.
Advances in understanding hepatitis B virus (HBV) and hepatitis C virus (HCV) are crucial for effective management.
The year 2003 saw significant research contributions to viral hepatitis.

Purpose of the Study:

To review novel and clinically relevant findings in viral hepatitis research published in 2003.
To focus on advancements in the understanding and treatment of hepatitis B and hepatitis C.

Main Methods:

A comprehensive MEDLINE search was conducted to identify relevant studies.
Studies reporting novel findings with clinical significance were selected for review.
The review synthesizes data from over 40 studies published in 2003.

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Main Results:

Hepatitis B virus (HBV) genotypes and mutations (precore, core promoter) were prevalent in the US.
Lamivudine treatment for HBV showed less durable responses compared to interferon; Adefovir dipivoxil demonstrated safety and efficacy.
For acute hepatitis C virus (HCV) infection, monitoring viral load and treating persistent viremia is a viable strategy.
Noninvasive markers for liver fibrosis are under investigation.
Early virologic response to pegylated interferon plus ribavirin predicts sustained response in HCV treatment.

Conclusions:

The clinical impact of HBV genotypes and variants is increasingly understood.
Long-term lamivudine for HBV is safe, though resistance is rising; Adefovir is a safe and effective option.
Noninvasive fibrosis indices may reduce the need for liver biopsies.
Emerging therapies for HCV infection show encouraging results.