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Author Spotlight: Advancements and Challenges in Hepatitis B Virus Detection
Published on: December 15, 2023
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[Hepatitis B: clinical application of HBsAg quantification]
Michelle Martinot-Peignoux1, Patrick Marcellin, Tarik Asselah
1Centre de recherche biomédicale Bichat-Beaujon (CRB3), Inserm U-773, Université Paris-Diderot ; Service d'hépatologie, Hôpital Beaujon, Clichy, France.
Annales De Biologie Clinique
|November 16, 2013
Summary
Hepatitis B virus antigen (HBsAg) quantification aids in identifying inactive carriers and predicting treatment response. This marker helps personalize hepatitis B management, optimizing therapy outcomes.
Area of Science:
- Hepatology and virology
- Biomarker discovery and validation
Context:
- Hepatitis B virus antigen (HBsAg) is a key indicator of hepatitis B infection.
- HBsAg levels correlate with viral activity and patient prognosis.
- Quantification assays are automated and high-throughput.
Purpose:
- To evaluate the utility of HBsAg quantification in managing chronic hepatitis B.
- To assess HBsAg's role in identifying inactive carriers and guiding treatment decisions.
Summary:
- HBsAg levels differ between HBeAg-positive and negative patients and correlate with fibrosis.
- In HBeAg-negative patients, low HBsAg (<1,000 IU/mL) and HBV DNA (<2,000 IU/mL) identify inactive carriers.
- HBsAg quantification guides pegylated-interferon (PEG-IFN) therapy by identifying non-responders early (week 12 stopping rule) based on genotype.
Impact:
- HBsAg quantification, alongside HBV DNA, is a valuable tool for patient classification and therapy monitoring in clinical practice.
- It aids in personalizing treatment strategies, potentially improving patient outcomes.
- Further research is needed to clarify its role in nucleos(t)ide analogue therapy for predicting treatment cessation and preventing reactivation.
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