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19S and 7-8S Forms of IgM Antibody to Hepatitis B Core Antigen in Acute Icteric Hepatitis Superimposed on Hepatitis B Surface Antigen Carriage

Overview
Journal Infection
Date 1990 Nov 1
PMID 2127587
Citations 1
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Abstract

The 19S and 7-8S forms of IgM antibody to hepatitis B core antigen (IgM anti-HBc) were separated by rate-zonal centrifugation from the serum of 20 Greek hepatitis B surface antigen (HBsAg) carriers with a superimposed acute icteric hepatitis positive for IgM anti-HBc by a radioimmunoassay. Serological markers of hepatitis A virus (HAV), hepatitis B virus (HBV) and hepatitis D virus (HDV) infections were detected with radioimmunoassays and serum HBV DNA was detected with molecular hybridization techniques. Eighteen of the 20 carriers showed a predominance of one or the other form of IgM anti-HBc. Low molecular weight (7-8S) IgM anti-HBc was observed more frequently in HDV superinfection (5/9) and was related to a low mortality (1/9). In contrast, 19S IgM anti-HBc was observed more frequently in reactivation of chronic hepatitis B (6/9) and was related to a high mortality (5/9). These preliminary data show that in HBsAg carriers with a superimposed acute icteric hepatitis, predominance of 19S IgM anti-HBc is frequently associated with a severe clinical course; the opposite is true for predominance of 7-8S IgM anti-HBc.

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Acute hepatitis B virus infection or acute exacerbation of chronic hepatitis B infection: the differential serological diagnosis.

Ponde R Eur J Clin Microbiol Infect Dis. 2015; 35(1):29-40.

PMID: 26581426 DOI: 10.1007/s10096-015-2522-7.

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