Increased nitric oxide in peritoneal fluid from women with idiopathic infertility and endometriosis.

The Journal of reproductive medicine · 2001 · vol. 46(10) , pp. 887–91 · PMID:11725732 · W1593969712
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Peritoneal fluid concentrations of nitric oxide metabolites were significantly increased in women with idiopathic infertility and endometriosis compared to controls.

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Abstract

OBJECTIVE: To verify whether nitric oxide in peritoneal fluid is associated with endometriosis and infertility. STUDY DESIGN: Twenty-five women with idiopathic infertility and 38 with endometriosis were recruited, and 18 cases of uterine myomata and 2 cases of ovarian cyst served as controls. Peritoneal fluid samples were aspirated from the pouch of Douglas during laparoscopy or laparotomy. Metabolites of nitric oxide (nitrite and nitrate) in peritoneal fluid were determined by a method using nitrate reductase and the Griess reaction. RESULTS: Peritoneal concentrations of nitrate/nitrite in both infertile women (42.02 +/- 12.98 mmol/L) and patients with endometriosis (41.75 +/- 16.42 mmol/L) were significantly higher than that in controls (33.96 +/- 13.07, P .5). Peritoneal levels of nitrate/nitrite were comparable among patients with endometriosis at different stages (P > .5). Patients with endometriosis had more peritoneal fluid than controls and idiopathic infertile women, while controls and idiopathic infertile women had comparable amounts of peritoneal fluid. CONCLUSION: An increased peritoneal level of nitric oxide is a common alteration in endometriosis, endometriosis-associated infertility and idiopathic infertility and may be associated with the pathogenesis of these diseases.

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Condition tags

endometriosisinfertility

MeSH descriptors

Ascitic Fluid Endometriosis Infertility, Female Nitric Oxide Adult Ascitic Fluid Biomarkers Biomarkers Endometriosis Female Humans Infertility, Female Nitric Oxide

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