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. 2021 Aug;304(2):439-445.
doi: 10.1007/s00404-021-06051-5. Epub 2021 Apr 7.

Association between single nucleotide polymorphism of the CYP19A1 and ESR2 genes and endometriosis

Beata Smolarz  1 , Hanna Romanowicz  2
Affiliations

Association between single nucleotide polymorphism of the CYP19A1 and ESR2 genes and endometriosis

Beata Smolarz et al. Arch Gynecol Obstet. 2021 Aug.

Abstract

Purpose: Endometriosis is a frequent gynaecological condition, both in Poland and in the world. The development of this disease is supported by hormonal, immunological and environmental factors. During the recent years, a particular attention has been focused on the genetic polymorphisms which may be of particular significance for the increased incidence rates of endometriosis. According to literature data, Oestrogen Receptor 2 (ESR2) and Cytochrome P450 Family 19 Subfamily A Member 1 (CYP19A1) genes may be accounted to the potential risk factors of infertility associated with endometriosis. The reported research was aimed to evaluate the association between single nucleotide polymorphisms (SNPs) rs17179740 of ESR2 and rs2899470 of CYP19A1 genes and the incidence of endometriosis.

Methods: The study material included blood specimens, collected from patients (n = 200) with endometriosis. Blood samples from age-matched, endometriosis-free women (n = 200) served as control. The High-Resolution Melter (HRM) technique was applied for polymorphism analysis.

Results: Regarding rs2899470 polymorphism TT homozygotes was significantly more prevalent among the patients with endometriosis than in the controls (OR 2.19; p = 0.04). In case of rs17179740, GG homozygotes, as well as AG-AA genotypes, were significantly more prevalent among the endometriosis patients (OR 2.48, p = 0.04 and OR 2.36, p = 0.04, respectively).

Conclusion: Summing up, the investigated polymorphisms of ESR2 and CYP19A1 gene are associated with the observed incidence of endometriosis.

Keywords: CYP19A1; ESR2; Endometriosis; Polymorphism.

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