title: Association between DNMT3L polymorphic variants and the risk of endometriosis-associated infertility.
abstract: Endometriosis is considered to be an epigenetic disease. It has previously been reported that the DNA methyltransferase 3-like (DNMT3L) rs8129776 single nucleotide polymorphism (SNP) contributes to endometrioma. In the present study, high‑resolution melting curve analysis was used to investigate the risks associated with the DNMT3L c.910‑635A/G (rs8129776), c.832C/T (rs7354779), c.812C/T (rs113593938) and c.344+62C/T (rs2276248) SNPs on stage I‑II endometriosis‑associated infertility. Included in the present study were patients presenting with stage I‑II endometriosis‑associated infertility (n=154) and a control cohort of healthy patients with confirmed fertility (n=383). No significant association between the above‑listed DNMT3L SNPs and the development of endometriosis‑associated infertility was identified. The lowest P‑values generated from trend analysis were observed in the DNMT3L c.832C/T (rs7354779) SNP (Ptrend=0.114). Furthermore, haplotype analyses of the DNMT3L SNPs failed to reveal any risk association between the development of endometriosis‑associated infertility and the above‑listed polymorphisms, even when the SNPs were present in combinations. Finally, a meta‑analysis was performed to examine the association between the DNMT3L rs8129776 SNP and the development of endometrioma, from which no association between the two was identified. On the basis of these results, the present study has demonstrated that variations in the DNMT3L gene do not contribute to stage I-II endometriosis-associated infertility.
authors.affiliation: Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, Poznań 60‑781, Poland.
authors.forename: Adrianna
authors.initials: A
authors.lastname: Mostowska
authors.affiliation: Department of Obstetrics, Gynecology and Gynecological Oncology, Division of Reproduction, Poznań University of Medical Sciences, Poznań 60‑781, Poland.
authors.forename: Malgorzata
authors.initials: M
authors.lastname: Szczepańska
authors.affiliation: Department of Obstetrics, Gynecology and Gynecological Oncology, Division of Reproduction, Poznań University of Medical Sciences, Poznań 60‑781, Poland.
authors.forename: Przemyslaw
authors.initials: P
authors.lastname: Wirstlein
authors.affiliation: Department of Obstetrics, Gynecology and Gynecological Oncology, Division of Reproduction, Poznań University of Medical Sciences, Poznań 60‑781, Poland.
authors.forename: Jana
authors.initials: J
authors.lastname: Skrzypczak
authors.affiliation: Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, Poznań 60‑781, Poland.
authors.forename: Paweł P
authors.initials: PP
authors.lastname: Jagodziński
mesh_terms: D000328:Adult; D004248:DNA (Cytosine-5-)-Methyltransferases / Q000235:genetics*; D004715:Endometriosis / Q000150:complications / Q000235:genetics* / Q000473:pathology; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D007247:Infertility, Female / Q000150:complications / Q000235:genetics* / Q000473:pathology; D020641:Polymorphism, Single Nucleotide
chemical_list: C412484:DNMT3L protein, human; D004248:DNA (Cytosine-5-)-Methyltransferases