RESUMO
<p><b>OBJECTIVE</b>To test anti-Sp17 antibodies in the serum of AsAb positive infertile patients, to investigate the proportion of anti-Spl7 antibodies in AsAb and their potential application to the serologic diagnosis of immune infertility and immunocontraception.</p><p><b>METHODS</b>With human recombinant Sp17 as the antigen, the ELISA method was used to detect the positive rate, antibody titre and content of anti-Sp17 antibodies in the AsAb positive serum.</p><p><b>RESULTS</b>The positive rate of anti-Sp17 antibodies in the AsAb positive serum was 56.5%, with no significant difference in the gender aspect. The percentage of anti-Sp17 antibodies in AsAb was (10.09 +/-7.45) %, with statistical significance (P <0.05).</p><p><b>CONCLUSION</b>Sp17 is an important sperm antigen. Anti-Sp17 antibodies in the serum can be taken as auxiliary diagnostic index of infertility, and Sp17 is shown to be a potential candidate immunocontraception vaccine.</p>