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Characterization of a precipitating antigen detected in the serum of patients with viral hepatitis
Authors:H Zhuang  A G Coulepis  S A Locarnini  J Kaldor  J A Marshall  I D Gust
Abstract:During a search for the aetiological agent of non-A non-B hepatitis, a precipitating antigen was detected in the sera of some patients during the acute phase of their illness. The antigen was detected by agar gel diffusion using antibody from convalescent sera obtained from patients with non-A non-B hepatitis, and from haemophiliac sera. The antigen was usually detected early in the patient's illness, disappearing as liver function tests returned to normal. In some patients specific antibody appeared during the convalescent phase of the disease. The antigen does not appear to be specific for non-A non-B hepatitis, as it could be detected with similar frequency in patients with hepatitis A or hepatitis B and some patients with other liver disorders. Biochemical and biophysical studies suggest that the antigen is probably an abnormal lipoprotein produced as a result of acute liver damage.
Keywords:viral hepatitis  non-A non-B hepatitis  immunodiffusion  lipoprotein
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