PMID: 7516423Mar 1, 1994Paper

IgM antibody to a hepatitis C virus core peptide (CP14) for monitoring activity of liver disease in patients with acute or chronic hepatitis C

Journal of Medical Virology
R NagayamaH Okamoto

Abstract

Antibodies to the hepatitis C virus (HCV) core of various immunoglobulin classes were determined by enzyme immunoassays with three synthetic peptides, CP14 (amino acids 5-40 of the core protein), CP10 (5-23), and CP9 (39-74). In 135 patients with chronic type C liver disease, anti-CP14, anti-CP10, and anti-CP9 of IgG class were detected in 99%, 94%, 82%, respectively; those of IgM class in 86%, 69%, and 39%; and those of IgA class in 56%, 40%, and 4%. Thus anti-CP14 was more prevalent than anti-CP10 or anti-CP9 in every immunoglobulin class. The prevalence of IgM anti-CP14 was much higher (P < 0.001) in patients (116/135 or 86%) than in asymptomatic carriers of HCV (13/39 or 33%). In seven patients with acute hepatitis C, IgM anti-CP14 continued to decrease in two in whom hepatitis resolved, but increased in five in whom hepatitis once resolved and then exacerbated. IgM anti-CP14 was followed in 30 patients with chronic hepatitis C during 24 weeks while they received recombinant interferon alpha-2a. IgM anti-CP14 decreased remarkably within 8 weeks in all of them. Thereafter, it continued to decrease in nine patients who responded to interferon and lost HCV RNA from circulation, but started to increase in five non-responders wh...Continue Reading

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Citations

Dec 23, 2003·International Journal of Hematology·Wanchai WanachiwanawinSuthat Fucharoen
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Mar 1, 1997·Clinical and Diagnostic Laboratory Immunology·E BurattiS G Tisminetzky

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