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  • Title: Antispermatozoal antibodies in three men with infertility due to congenital aplasia of the vasa deferentia.
    Author: Kay DJ, Hosken B, Boettcher B, Clark L.
    Journal: Am J Reprod Immunol Microbiol; 1988 Jun; 17(2):48-52. PubMed ID: 3189649.
    Abstract:
    Men presenting with azoospermia due to aplasia of the vas deferens have commonly been considered to be infertile without hope of treatment. With improved methods of artificial insemination however, and more particularly with the advent of in vitro fertilization, it has been suggested that unusable spermatozoa may be able to be drawn from the epididymes of such men so that fertilization is achieved. The clinical situation of such men is analogous to that of long term vasectomised patients, 60% of whom are known to produce antibodies to spermatozoa which would interfere with the fertilization process. It was therefore decided to attempt to draw fluid from the epididymes of three such patients and at the same time conduct immunological studies on their sera, seminal fluid and, where available, epididymal fluid. Unfortunately, the spermatozoa obtained from all three men lacked sufficient progressive motility for use in in vitro fertilization. In addition, all men had antispermatozoal antibodies in their sera. Two of them also had antispermatozoal antibodies in their epididymal fluid and on their sperm, one at the same titer as in his serum. Since it is known that antibodies coating sperm reduce the changes of fertilization it is suggested that their presence should be assessed in all such men being considered for treatment. In addition, these studies demonstrate that antispermatozoal antibodies can enter the male tract at the level of the epididymis or higher and there were strong suggestions of local antibody production at this level in the tract.
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