HBV DNA quantitation is used extensively world wide for the diagnosis and monitoring of treatment of Hepatitis B virus (HBV) infection. However, it has still to be popular in India. The aim of this study was to quantitate HBV – DNA by Real time – PCR method in Hepatitis B and in . In this study, we describe the development, evaluation, and validation of a novel real – time PCR assay designed to provide accurate quantification of DNA from all.

Quantitative real – time PCR assay was carried out using SYBR-Green signal detection and primers specific to the S gene. Heo J(1), Go WO, Kim GH, Kang DH, Song GA, Cho M, Kim HH, Lee EY.

Author information: ()Department of Internal Medicine, Pusan National University, School of Medicine, Busan, Korea. BACKGROUND: Accurate measurement of . In cases of acute viral hepatitis with equivocal HBsAg test , testing for HBV DNA in serum may be a useful adjunct in the diagnosis of acute HBV infection, since HBV DNA can be detected approximately days before HBsAg. Hepatitis B Virus ( HBV ) DNA Detection and Quantification by Real – Time PCR , Serum.

Real – time PCR assays for hepatitis B virus DNA quantification may require two different targets. This test is intended for use as an aid in the management of patients with chronic HBV infection undergoing antiviral therapy. The test can be used to measure HBV DNA levels at baseline and during treatment to aid in assessing response to treatment. The from this test must be interpreted within the context of all .

Heb B liver Profile HBV DNA real time PCR – NOT detected comment from doctor : HBV carrier with no evidence of active viral replication and DNA not detected. A highly sensitive and rapid assay has been developed to quantify hepatitis B virus ( HBV ) DNA , based on the fluorescence resonance energy transfer principle and real – time PCR , using the. LightCycler and a pair of specific fluorescent hybridization probes.

A sensitive and reproducible real – time PCR assay based on TaqMan technology was developed for the detection and quantitation of hepatitis B virus. HBV DNA was measured in 1serum samples from hepatitis. B patients, consisting of 22 . Quantitation of hepatitis B virus ( HBV ) DNA in serum is a useful method for the monitoring of HBV replication. We attempted to develop a quantitative assay system for HBV DNA that is more sensitive, accurate, and reproducible than existing systems.

We detected HBV DNA by real – time detection PCR (RTD- PCR ) based on . The purpose of this study was to quantify hepatitis B virus DNA by direct real – time PCR from serum without the need for DNA extraction. Crossing point (Cp) values were determined automatically using the second derivative maximum mode. Since serum samples from patients are inevitably haemolyse lipaemic or icteric,. In this paper, we describe the validation of a real – time PCR assay for HBV DNA quantification with TaqMan chemistry and MGB probes. Primers and probes were designed using an alignment of sequences from all HBV genotypes in order to equally amplify all of them.

Real Time PCR – Taqman technology). The assay is internally controlled and was standardized . Target not detected Sample provided does not contain HBV DNA. HBV DNA detecte but below the lower limit of linear range of the assay.

These should be interpreted with caution. Methods Serum proteins were precipitated by phenol to release HBV DNA in the supernatant which was then transferred to the UF . Methods The AdvanSure HBV real – time PCR assay was compared with the Abbott RealTime HBV Quantification Kit, the COBAS TaqMan HBV Test, and the VERSANT HBV branched DNA 3. The precision, linearity, accuracy, limit of detection (LOD), cross reactivity, and genotype inclusivity of the assays were . Introduction: The hepatitis B virus is a global public health concern and leading cause of chronic liver disease in Bangladesh. For the diagnosis and monitoring of treatment of Hepatitis B virus infection, HBV – DNA detection and quantification is now extensively used worldwide.

Objectives: The objective of this study was to.