Studies on Hanganutziu-Deicher antigens-antibodies. I. Hanganutziu-Deicher antibodies of IgG class in liver diseases.

Sera of patients with various liver diseases were examined for the presence of Hanganutziu-Deicher (H-D) antibodies by enzyme immunoassay with high-molecular weight glycoprotein (HMWGP) isolated from bovine red blood cell stromata. IgG class H-D antibodies were demonstrated in sera of 5.9% of acute hepatitis, 28.1% of chronic hepatitis and 21.9% of liver cirrhosis patients. H-D specificity of the antibodies under investigation was determined by absorption experiments. Evidence was also presented that the H-D antibodies in the liver disease sera are directed to N-glycolyl neuraminic acid (NGNA) and/or NGNA-dependent determinants of HMWGP.