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Tissue Antigens. 1981 Jan;17(1):67-74.

Antibodies to human immunoglobulin detected by hemolysis of human immunoglobulin-coated red blood cells.


A hemolysis assay was developed to detect alloantibodies to human immunoglobulin. A total of 1035 serum samples was tested. Anti-IgM antibodies were found in 8% of 59 normal persons and in 13% of 439 multiparous women, with the highest incidence of 67% in 341 dialysis patients. Although the anti-IgM antibodies were inhibited by both IgM and IgG, it appeared that they were also inhibited by F(ab')2 bu not by Fc. Anti-IgG antibodies were more strongly inhibited by Fc than F(ab')2. These results suggest that anti-IgM antibodies might be analogous to antiidiotypic antibodies directed to F(ab')2, whereas anti-IgG antibodies tend to have greater reactivity to Fc.

[Indexed for MEDLINE]

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