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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 57 (1979), S. 1129-1132 
    ISSN: 1432-1440
    Keywords: Hepatitis B ; HBsAg ; HBeAg ; Anti-HBe ; Solid-Phase Radioimmunoassay ; Hepatitis B ; HBsAg ; HBeAg ; anti-HBe ; Solid-Phase Radioimmunoassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A solid-phase radioimmunoassay was developed for the detection of HBeAg and anti-HBe in sera or serum fractions. HBe/sAg positive sera, partially purified HBeAg, partially purified HBsAg, and HBe/sAg negative sera were polymerized in polyacrylamide and compared for their ability to bind125I-IgG (anti-HBe). Only gels containing HBeAg reacted specifically with the iodinated antibody. The specificity of the binding was confirmed by blocking and inhibition tests using anti-HBe, HBeAg, HBsAg, and negative control sera. The radioimmunoassay allows the specific and quantitative detection of HBeAg and anti-HBe even in the presence of detergents and high salt concentrations.
    Notes: Zusammenfassung Ein Radioimmunoassay wurde entwickelt zum Nachweis von HBeAg und anti-HBe in Serum oder Serumfraktionen. HBe/sAg positives Serum, teilweise gereinigtes HBeAg, teilweise gereinigtes HBsAg und HBe/sAg negatives Kontrollserum wurden in Polyacrylamid polymerisiert und auf ihre Bindungsfähigkeit für125I-IgG (anti-HBe) untersucht. Nur Gele mit immobilisiertem HBeAg reagierten spezifisch mit anti-HBe. Die Spezifität der Bindung wurde gesichert durch Blockierungs-/Inhibitionsteste mit anti-HBe, HBeAg, HBsAg und negativen Kontrollseren. Der Radioimmunoassay ermöglicht den spezifischen und quantitativen Nachweis von HBeAg und anti-HBe, auch in Gegenwart von Detergentien und hohen Salzkonzentrationen.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 72 (1994), S. 737-741 
    ISSN: 1432-1440
    Keywords: Hepatitis B ; Antiviral agents ; Oligonucleotides ; Antisense
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Chronic infection with the hepatitis B virus is a major health problem worldwide. The only established therapy is interferon-α, with an efficacy of only 30–40% in highly selected patients. Nucleoside analogues do not show a significant clinical benefit. Molecular therapeutic strategies aimed at blocking gene expression include antisense DNA/RNA and ribozymes acting at the posttranscriptional level and triple helix formation blocking at the transcriptional level. In vitro, antisense oligodeoxynucleotides inhibit viral replication and gene expression in human hepatoma cell lines. In vivo, an antisense oligodeoxynucleotide directed against the 5′-region of the pre-S gene of the duck hepatitis B virus inhibited viral replication and gene expression in ducks. In vitro, ribozymes accurately cleave HBV substrate RNA. Triple helix formation is another very promising molecular approach. Results in hepadnaviral infection are not yet available, however.
    Type of Medium: Electronic Resource
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