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  • Title: Increased levels of oxidative stress markers in the peritoneal fluid of women with endometriosis.
    Author: Polak G, Wertel I, Barczyński B, Kwaśniewski W, Bednarek W, Kotarski J.
    Journal: Eur J Obstet Gynecol Reprod Biol; 2013 Jun; 168(2):187-90. PubMed ID: 23351670.
    Abstract:
    OBJECTIVE: To evaluate 8-hydroxy-2-deoxyguanosine (8-OHdG) and 8-isoprostane levels in the peritoneal fluid (PF) of women with endometriosis. STUDY DESIGN: One hundred and ten women with laparoscopically and histopathologically confirmed endometriosis and, as reference groups, 119 patients with simple serous (n=78) and dermoid (n=41) ovarian cysts were studied. Peritoneal fluid 8-OHdG and 8-isoprostane concentrations were evaluated by enzyme-linked immunosorbent assays. RESULTS: 8-OHdG and 8-isoprostane levels in peritoneal fluid were significantly higher in patients with endometriosis compared with the reference groups. Higher PF 8-OHdG and 8-isoprostane concentrations were observed in patients with advanced stages of endometriosis. A statistically significant positive correlation was found between 8-OHdG and 8-isoprostane levels in peritoneal fluid. CONCLUSION: Endometriosis induces greater oxidative stress and frequent DNA mutations in peritoneal fluid than nonendometriotic ovarian cysts. The most severe oxidative stress occurs in the peritoneal cavity of women with more advanced stages of the disease.
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