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  • Title: Mixed erythrocyte-spermatozoa antiglobulin reaction (MAR test) for IgA antisperm antibodies in subfertile males.
    Author: Hendry WF, Stedronska J, Lake RA.
    Journal: Fertil Steril; 1982 Jan; 37(1):108-12. PubMed ID: 7060754.
    Abstract:
    A mixed antiglobulin reaction (MAR test), using antibody-coated red cells and spermatozoa, has been used to detect the presence of either IgA or IgG on he surface of the spermatozoa. Group O Rh-positive red cells were sensitized with serum containing anti-D, which was partly IgA, though mainly IgG. Spermatozoa were added to the sensitized red cells and tested either with anti-IgA or anti-IgG. MAR (IgA) test results were negative or doubtful in 42 (44%) of 94 samples with positive or strongly positive MAR (IgG) tests. Positive MAR (IgA) tests showed a highly significant correlation with the presence of antisperm antibodies in seminal plasma. Significantly impaired sperm penetration of cervical mucus was demonstrated for 15 patients, 12 of whom had positive MAR (IgA) tests, whereas good sperm penetration was observed for 5 patients with negative or dubious MAR (IgA) tests; all 20 patients had strongly positive MAR (IgG) tests and positive serum antisperm antibody tests.
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