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  • Title: The effects on in-vitro fertilization of autoantibodies to spermatozoa in subfertile men.
    Author: Rajah SV, Parslow JM, Howell RJ, Hendry WF.
    Journal: Hum Reprod; 1993 Jul; 8(7):1079-82. PubMed ID: 8408491.
    Abstract:
    Thirty-six infertile couples underwent treatment by in-vitro fertilization. In 16 couples (group 1) the male partner was positive for antisperm antibodies measured by direct mixed antiglobulin reaction, direct immunobead test, and serum and/or seminal plasma tray agglutination test. In 20 couples (group 2) the men had no such antibodies. Men with poor sperm motility were excluded. The female partners had no antisperm antibodies, and in the controls (group 2) infertility was due to a known female factor. The fertilization rate in couples without antisperm antibodies (group 2) was 72.7% compared to 50.5% when the men had antibodies. However, the pregnancy rate per embryo transfer was not significantly different in the two groups (46.1% in group 1, 33.3% in group 2). This indicates that antisperm antibodies in the male interfere with sperm--egg fusion and subsequent fertilization but once fertilization has occurred, the pregnancy rate remains the same.
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