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J Virol Methods. 2004 Feb;115(2):217-22.

Quantitation of hepatitis B surface antigen by an automated chemiluminescent microparticle immunoassay.

Author information

1
The Laboratory for Clinical Investigation, Osaka University Hospital, 2-15 Yamadaoka, Suita-shi, 565-0871, Osaka, Japan. exit@hp-lab.med.osaka-u.ac.jp

Abstract

A fully automated chemiluminescent microparticle immunoassay (Architect HBsAg QT) was used for the detection and quantitation of hepatitis B surface antigen (HBsAg). The assay is capable of processing up to 800 HBsAg tests per hour. The concentration of HBsAg is determined by utilizing a previously generated Architect HBsAg calibration curve. Architect HBsAg QT sensitivity was found to be around 0.2ng/ml which is equivalent or superior to other known and commercially available enzyme immunoassays and/or chemiluminescent immunoassays. We performed a quantitative study of HBsAg, HBeAg, HBV-DNA and HBV-DNA polymerase in over 733 sera obtained from 43 chronic hepatitis B carriers. Serum HBsAg levels detected by Architect HBsAg QT were found to be higher in HBeAg-positive than in anti-HBe-positive HBV chronic carriers and correlated with the level of serum HBV-DNA and HBV-DNA polymerase.

PMID:
14667538
[Indexed for MEDLINE]

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