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Updated: May 15, 2026

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
Published on: December 15, 2023
[Prevalence of seronegative hepatitis D among patients with chronic viral hepatitis B]
Insights
Hepatitis D virus (HDV) replication markers are crucial for diagnosing active co-infection in chronic hepatitis B patients. A significant portion of patients with chronic viral hepatitis B (CVHB) and elevated ALT levels showed seronegative HDV infection, highlighting the need for HDV RNA testing.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Context:
- Chronic viral hepatitis B (CVHB) is a significant global health concern.
- Active CVHB infection is characterized by elevated alanine aminotransferase (ALT) levels.
- Hepatitis D virus (HDV) co-infection can worsen liver disease progression.
Purpose:
- To evaluate the prevalence of HDV replication markers in patients with CVHB and active liver damage.
- To assess the utility of HDV RNA detection in diagnosing HDV co-infection.
- To identify cases of seronegative HDV infection in the context of CVHB.
Summary:
- This study examined 142 patients with CVHB and elevated ALT levels.
- HDV antibodies were found in 16.2%, while HDV RNA was detected in 21.8% of patients.
- A notable 8.4% of patients exhibited a seronegative course of HDV co-infection, confirmed by HDV RNA detection.
Impact:
- The findings underscore the importance of including HDV RNA testing in the diagnostic algorithm for CVHB patients, especially those with pronounced liver damage.
- Detecting seronegative HDV infection is critical for appropriate patient management and preventing disease progression.
- This research contributes to a better understanding of HDV epidemiology and diagnostic strategies in co-infected individuals.
Aim:
Evaluate prevalence of hepatitis D virus replication markers among patients with chronic viral hepatitis B (CVHB) with active infection course and pronounced biochemical markers of liver damage (ALT level increase).
Materials And Methods:
ALT>2N served as a criteria of active CVHB course. The following parameters were determined: HBsAg, anti-HBcor IgG, anti-HBeAb, anti-HCV IgG, anti-HDV IgG+IgM, HBV DNA, HDV RNA. HCV IgG(+) patients were excluded from the analysis. In total 142 patients were examined.
Results:
Antibodies against HDV were detected in 16.2% (n=23) with CVHB, and HDV DNAwas detected in 21.8% of the examined individuals (n=31). The following variants of HDV infection marker combination were detected: HDV IgG(-) HDV RNA(-) - 75.3% (n=107), no HDV infection; HDV IgG(+) HDV RNA(-) - 2.8% (n=4), anamnestic antibodies against HDV; HDV IgG(+) HDV RNA (+) - 13.4% (n=19), active CVHB+D infection; HDV IgG(-) HDV RNA(+) - 8.4% (n=12), seronegative course of CVHB+B.
Conclusion:
Examination of patients with pronounced cytolytic syndrome but PCR HBV DNA (-) must include not only determination of serologic markers of HDV infection but also HDV replication markers (PCR HDV RNA). Detection ofpatients with seronegative HDVcourse among patients with HVHB (8.4%) persuasively demonstrates the necessityto introduce molecular-biological examination for HDV RNA into CVHB laboratory diagnostics algorithm.
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