title: Quantitative assessment of serum IgM anti-HBc in the natural course and during interferon treatment of chronic hepatitis B virus infection.
abstract: Serum IgM anti-HBc was determined in 135 chronic HBsAg carriers with various categories of histological activity on liver biopsy and hepatitis B serological profile. Thirty-three patients were treated with interferon-alpha to investigate the correlation between serum IgM anti-HBc with histological activity and viral replication, to evaluate the usefulness of pretreatment IgM anti-HBc as a predictor of a successful response to interferon-alpha and to examine the IgM anti-HBc response during this treatment. All 53 patients with chronic active hepatitis with either wild-type (n = 42) or precore mutant variant HBV infection (n = 11) had an IgM anti-HBc index greater than 0.300 compared with 7.4% (2 of 27) of the chronic HBsAg/HBeAg-positive carriers with chronic persistent hepatitis, 10% (3 of 30) of the anti-HBe-positive asymptomatic carriers and none of the 25 patients with hepatitis D virus-positive chronic active hepatitis (p < 0.0001). Pretreatment IgM anti-HBc index was greater than 0.300 in 82.4% (14 of 17) of HBeAg/HBV DNA-positive patients who seroconverted after interferon-alpha treatment compared with 25% (4 of 16) of the patients who did not seroconvert (p = 0.0013), whereas an elevated pretreatment AST was present in only 52.9% (9 of 17) of responders and in 37.5% (6 of 16) of nonresponders (p = 0.42). Serial testing of IgM anti-HBc in these 33 patients during interferon-alpha treatment showed a significant rise in IgM anti-HBc in all responders, which followed the AST flare-up but preceded the time of the HBeAg to anti-HBe seroconversion.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Institute of Liver Studies, King's College School of Medicine and Dentistry, London, United Kingdom.
authors.forename: G
authors.initials: G
authors.lastname: Marinos
authors.forename: H M
authors.initials: HM
authors.lastname: Smith
authors.forename: N V
authors.initials: NV
authors.lastname: Naoumov
authors.forename: R
authors.initials: R
authors.lastname: Williams
mesh_terms: D001219:Aspartate Aminotransferases / Q000097:blood; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D004279:DNA, Viral / Q000097:blood; D005260:Female; D006509:Hepatitis B / Q000188:drug therapy*; D006510:Hepatitis B Antibodies / Q000097:blood*; D006512:Hepatitis B Core Antigens / Q000276:immunology*; D006513:Hepatitis B e Antigens / Q000097:blood / Q000276:immunology; D006515:Hepatitis B virus / Q000235:genetics / Q000276:immunology / Q000502:physiology; D006801:Humans; D007075:Immunoglobulin M / Q000097:blood*; D000077190:Interferon alpha-2; D016898:Interferon-alpha / Q000627:therapeutic use*; D008137:Longitudinal Studies; D008297:Male; D011446:Prospective Studies; D011994:Recombinant Proteins; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens; D006513:Hepatitis B e Antigens; D007075:Immunoglobulin M; D000077190:Interferon alpha-2; D016898:Interferon-alpha; D011994:Recombinant Proteins; D001219:Aspartate Aminotransferases