{"paper_id":"ccc7c0c6-8d61-47bf-a8f9-f8b04054776c","body_text":"Abstract\nPurpose : Catechol-O-methyltransferase (COMT) inactivates the estradiol metabolites, 2-hydroxy and 4-hydroxy catechols, which have been implicated in the pathogenesis of endometriosis. A COMT valine to methionine polymorphism (G-to-A) in exon 4 of the COMT gene is polymorphic in the human population, with 25% of Caucasians being homozygous for the low-activity allele (COMT-L) of the enzyme. In a case-control study we investigated whether this COMT polymorphism is associated with endometriosis.\nMethods : Polymerase chain reaction was performed to analyze the COMT genotype among women with surgically and histologically confirmed endometriosis (study group; n = 91) and in women without evidence of endometriosis confirmed by laparoscopy or laparotomy (control group; n = 92).\nResults : Allele frequencies for the low-activity allele (COMT-L) among women with endometriosis and controls were 0.50 and 0.50, respectively (p = 0.999; odds ratio = 1.0, 95% CI: 0.66–1.51).\nConclusions : Our results suggest that the valine to methionine polymorphism in exon 4 of the COMT gene is not associated with the risk of endometriosis compared to a surgical control population.\nSimilar content being viewed by others\nREFERENCES\nOlive DL, Schwartz LJ: Endometriosis. N Engl J Med 1993;328:1759–1769\nRedwine D: Mullerioisis: The single best-fit model of the origin of endometriosis. 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Linkage and association studies of the relationship between endometriosis and genes encoding the detoxification enzymes GSTM1,GSTT1and CYP1A1. MolHumReprod 2001;7: 1073–1078\nAuthor information\nAuthors and Affiliations\nCorresponding author\nRights and permissions\nAbout this article\nCite this article\nWieser, F., Wenzl, R., Tempfer, C. et al. Catechol-O-Methyltransferase Polymorphism and Endometriosis. J Assist Reprod Genet 19, 343–348 (2002). https://doi.org/10.1023/A:1016062726783\nIssue date:\nDOI: https://doi.org/10.1023/A:1016062726783","source_license":"CC0","license_restricted":false}