Objective: To show that raised iron levels in the peritoneal fluid (PF) of patients with endometriosis catalyze free radical reactions that results in the tissue destruction and fibrosis seen in these patients.
Design: A case-controlled study of the iron levels (microgram/mL) in the pelvic PF of 12 patients with moderate-to-severe disease, 15 patients with minimal-to-mild disease and in 17 women with normal pelvises were compared. As an index of free radical reactions through lipid peroxidation, the levels of malondialdehyde levels (ng/mL) were assessed simultaneously in the same specimens.
Results: Controlling for the phase of the menstrual cycle, significantly higher levels of iron were seen in patients with endometriosis, the levels being correlated with the severity of the disease. However no such corresponding relationship was seen in the malondialdehyde levels in the PF.
Conclusions: These results suggest that raised iron levels in the PF do not play a role in catalyzing free radical reactions as judged by the degree of lipid peroxidation.
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