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HBV-DNA detection by gene amplification in acute hepatitis B
W G Quint1, I de Bruijn, H Kruining
1Department of Virology, Erasmus University, Rotterdam, The Netherlands.
Hepatology (Baltimore, Md.)
|October 1, 1990
Summary
Hepatitis B virus (HBV) DNA was detected in women infected during an IVF program using polymerase chain reaction. HBV DNA was found during antigenemia and even in the convalescent phase, highlighting prolonged viral presence.
Area of Science:
- Virology
- Molecular Biology
- Hepatology
Background:
- In vitro fertilization (IVF) programs can inadvertently transmit infections.
- Hepatitis B virus (HBV) infection poses a significant public health concern.
- Accurate detection of HBV DNA is crucial for managing infection.
Purpose of the Study:
- To assess the presence and duration of HBV DNA in women inadvertently infected through an IVF program.
- To evaluate the efficacy of polymerase chain reaction (PCR) for detecting low levels of HBV DNA.
- To understand the relationship between HBV antigens/antibodies and HBV DNA presence.
Main Methods:
- Serum samples from 62 women infected with HBV were analyzed.
- Polymerase chain reaction (PCR) was employed for sensitive HBV DNA detection.
- Strict spatial separation was maintained during DNA extraction, amplification, and analysis.
Main Results:
- HBV DNA was detected in 98.5% of samples during HBsAg and HBeAg antigenemia.
- HBV DNA was also detected in 18.2% of samples in the convalescent phase (anti-HBs positive).
- All convalescent-phase patients became HBV DNA negative within 3-6 months; PCR confirmed HBeAg-positive samples were HBV DNA positive.
Conclusions:
- PCR enables sensitive detection of HBV DNA, even at low viral loads (360 particles/mL).
- HBV DNA can persist in serum longer than indicated by traditional serological markers.
- This study highlights the prolonged presence of HBV DNA, impacting the understanding of HBV infection resolution.