The Polymorphic Locus rs780093 of the GCKR Gene Is Associated with the Risk of Infertility in Endometriosis

In: Russian Journal of Genetics · 2025 · vol. 61(8) , pp. 987–996 · doi:10.1134/s1022795425700516 · W4413812022
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The TT genotype of the GCKR rs780093 locus was associated with reduced infertility risk in endometriosis, while NR2F2, PPP1R21, and PRMT6 interlocus interactions were linked to increased infertility risk.

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This study examined whether nine SHBG-associated genetic polymorphisms are linked to infertility among 395 women with genital endometriosis from Russia, comparing 132 cases with concomitant infertility to 263 without infertility. Genotyping included rs780093 in the GCKR gene and other loci previously reported in GWAS, with analyses also testing interlocus interactions. The TT genotype at rs780093 GCKR was associated with a lower risk of infertility (OR = 0.43, p = 0.017), and significant gene–gene interactions were found among rs8023580 (NR2F2), rs10454142 (PPP1R21), and rs17496332 (PRMT6), with specific multi-locus genotype combinations showing either risk or protective effects; a key limitation is the relatively small, single-region sample size. This paper is centrally about endometriosis — it identifies associations of rs780093 (GCKR) and SHBG-related gene–gene interactions with infertility risk in women with genital endometriosis.

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Abstract

In this study, we examine the associations of nine polymorphic loci associated with the level of sex hormone binding globulin (SHBG) with the development of infertility in women with genital endometriosis. The study was conducted on a sample of 395 patients with genital endometriosis (132 women with genital endometriosis and concomitant infertility, 263 women with genital endometriosis without infertility), natives of the Central Black Earth Region of Russia. Genotyping of nine polymorphic loci associated with SHBG levels according to previously conducted genome-wide association studies (GWAS) was performed: rs12150660 SHBG, rs10454142 PPP1R21, rs780093 GCKR, rs17496332 PRMT6, rs3779195 BAIAP2L1, rs440837 ZBTB10, rs7910927 JMJD1C, rs4149056 SLCO1B1, rs8023580 NR2F2. It was found that the genotype TT rs780093 GCKR is associated with a low risk of infertility in endometriosis (OR = 0.43; p = 0.017; pperm = 0.019). It has been identified that interlocus interactions rs8023580 NR2F2–rs10454142 PPP1R21–rs17496332 PRMT6 are significantly associated with the risk of infertility in genital endometriosis (Wald criterion WH = 19.15, pperm ≤ 0.001). Combinations of genotypes rs8023580-TT NR2F2–rs10454142-TT PPP1R21–rs17496332-AA PRMT6 (beta = 0.71, p = 0.042), rs8023580-TC NR2F2–rs10454142-CC PPP1R21–rs17496332-AA PRMT6 (beta = 1.55, p = 0.025), and rs8023580-TC NR2F2–rs10454142-TT PPP1R21–rs17496332-AG PRMT6 (beta = 1.92, p = 0.027) are risk factors for infertility in genital endometriosis. Thus, the polymorphic locus rs780093 GCKR and the interlocus interactions rs8023580 NR2F2–rs10454142 PPP1R21–rs17496332 PRMT6 are associated with the risk of infertility in endometriosis.
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Abstract

In this study, we examine the associations of nine polymorphic loci associated with the level of sex hormone binding globulin (SHBG) with the development of infertility in women with genital endometriosis. The study was conducted on a sample of 395 patients with genital endometriosis (132 women with genital endometriosis and concomitant infertility, 263 women with genital endometriosis without infertility), natives of the Central Black Earth Region of Russia. Genotyping of nine polymorphic loci associated with SHBG levels according to previously conducted genome-wide association studies (GWAS) was performed: rs12150660 SHBG, rs10454142 PPP1R21, rs780093 GCKR, rs17496332 PRMT6, rs3779195 BAIAP2L1, rs440837 ZBTB10, rs7910927 JMJD1C, rs4149056 SLCO1B1, rs8023580 NR2F2. It was found that the genotype TT rs780093 GCKR is associated with a low risk of infertility in endometriosis (OR = 0.43; p = 0.017; pperm = 0.019). It has been identified that interlocus interactions rs8023580 NR2F2–rs10454142 PPP1R21–rs17496332 PRMT6 are significantly associated with the risk of infertility in genital endometriosis (Wald criterion WH = 19.15, pperm ≤ 0.001). Combinations of genotypes rs8023580-TT NR2F2–rs10454142-TT PPP1R21–rs17496332-AA PRMT6 (beta = 0.71, p = 0.042), rs8023580-TC NR2F2–rs10454142-CC PPP1R21–rs17496332-AA PRMT6 (beta = 1.55, p = 0.025), and rs8023580-TC NR2F2–rs10454142-TT PPP1R21–rs17496332-AG PRMT6 (beta = 1.92, p = 0.027) are risk factors for infertility in genital endometriosis. Thus, the polymorphic locus rs780093 GCKR and the interlocus interactions rs8023580 NR2F2–rs10454142 PPP1R21–rs17496332 PRMT6 are associated with the risk of infertility in endometriosis. Similar content being viewed by others

References

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Author information Authors and Affiliations Corresponding author Ethics declarations ETHICS APPROVAL AND CONSENT TO PARTICIPATE The study was approved by the Ethics Committee of Belgorod State University on January 30, 2024, protocol no. 2. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research ethics committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Informed voluntary consent was obtained from each of the participants included in the study or their legal representatives. CONFLICT OF INTEREST The authors of this work declare that they have no conflicts of interest. Additional information Publisher’s Note. Pleiades Publishing remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. AI tools may have been used in the translation or editing of this article. Rights and permissions About this article Cite this article Ponomareva, T.A., Altukhova, O.B., Ponomarenko, I.V. et al. The Polymorphic Locus rs780093 of the GCKR Gene Is Associated with the Risk of Infertility in Endometriosis. Russ J Genet 61, 987–996 (2025). https://doi.org/10.1134/S1022795425700516 Received: Revised: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1134/S1022795425700516

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