[IgG antibodies against laminin-1 in serum and in peritoneal fluid in patients with decreased fertility].

Objective: To study of IgG antibodies against laminin-1 (IgG-a-Ln-1) in patients with decreased fertility, especially with endometriosis and with diagnosis of polycystic ovaries.

Design: Prospective study.

Setting: Special Consultation for Immunology of Reproduction and Research Laboratories for Reproductive Immunology, Department of Gynaecology and Obstetrics, Medical School of Charles University and Faculty Hospital, Pilsen.

Methods: Commercial ELISA kits for detection of IgG antibodies against laminin-1 in serum (S) and peritoneal fluid (PF) in 120 patients after diagnostic laparoscopy, and in serum in 277 patients after 2-3 in vitro fertilizations and with diagnosed endometriosis.

Results: Only 16 positive results in IgG-a-Ln-1 antibodies (more than 15 IU/ml) were detected in sera and peritoneal fluids in the group of 120 women after laparoscopy. We have not detected any serum IgG-a-Ln-1 positivity in the group of 277 patients after 2-3 unsuccesfull IVF and with anamnestical date about endometriosis together.

Conclusion: Increased levels of IgG-a-Ln are in particular found in endometriosis II-III and in diagnosis of polycystic ovaries, in female diseases also related to autoimmune process.