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ABSTRACT
The aim of this study was to investigate the possible association between serum anti-Helicobacter pylori antibodies and anti-sperm antibodies (ASA) in patients with gastroduodenal diseases caused by H. pylori, infertile patients positive for ASA and healthy fertile blood donors as controls. Serum ASA were studied by sperm agglutination tests, sperm immobilization test and ELISA against sperm antigens (ELISAsp). Serum IgG anti-H. pylori antibodies were detected by ELISA (ELISAHp). The tests revealed significantly higher incidence of ASA in patients with gastroduodenal diseases compared to the controls (P < 0.0001). The median levels of both types of antibodies were significantly higher in infertile patients than in patients with upper gastroduodenal diseases in all tests applied (sperm agglutination and immobilization tests P < 0.0001; ELISAsp P = 0.006; ELISAHp, P = 0.0008). Significant linear correlation was found between anti-H. pylori antibodies and ASA detected by sperm immobilization test (r = 0.613, P = 0.05) in the group of patients with gastroduodenal disease, as well as a weak linear correlation was established between anti-H. pylori antibodies and ASA in ELISAsp (r = 0.275, P = 0.0051) in the same group. These results suggest that H. pylori infection may play a role in the induction of ASA.
Acknowledgments
This study was partly based on ideas originated by the late Prof. Lyudmil S. Nakov, to whom the authors are immensely grateful for his long-standing support and guidance.
Disclosure statement
No potential conflict of interest was reported by the authors.