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Association of WNT4 polymorphisms with endometriosis in infertile patients

  • Genetics
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Abstract

Purpose

Recently, several genome-wide association studies have demonstrated an association between endometriosis and markers located in or near to WNT4 gene. In order to assess the validity of the findings, we conducted a replication case–control study in a Brazilian population.

Methods

Genetic association study comprising 400 infertile women with endometriosis and 400 fertile women as controls. TaqMan allelic discrimination technique was used to investigate the relationship between endometriosis and four single-nucleotide polymorphisms (rs16826658, rs3820282, rs2235529, and rs7521902) in WNT4 gene. Genotype distribution, allele frequency, and haplotype analysis of the WNT4 polymorphisms were performed. A p value <0.05 was considered significant.

Results

The results revealed a significant association of rs16826658 (p = 7e-04) and rs3820282 (p = 0.048) single-nucleotide polymorphisms (SNPs) on WNT4 gene with endometriosis-related infertility, while rs2235529 and rs7521902 SNPs showed no difference between cases and controls.

Conclusions

Our results suggested that rs16826658 and rs3820282 polymorphisms on WNT4 gene might be involved in the pathogenesis of endometriosis in the infertile women studied. Analysis of WNT4 genetic variants might help to identify patients at high risk for disease development.

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Acknowledgments

The work was supported by a grant from Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) No. 2013/14470-9. F.M. was supported by a PhD scholarship from FAPESP No. 2012/22394-8.

Conflict of interest

The authors declare that they have no competing interests.

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Corresponding author

Correspondence to Denise Christofolini.

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Capsule

Analysis of WNT4 gene identified rs16826658 and rs3820282 polymorphisms involved in the pathogenesis of endometriosis in Brazilian infertile women.

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Mafra, F., Catto, M., Bianco, B. et al. Association of WNT4 polymorphisms with endometriosis in infertile patients. J Assist Reprod Genet 32, 1359–1364 (2015). https://doi.org/10.1007/s10815-015-0523-1

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  • DOI: https://doi.org/10.1007/s10815-015-0523-1

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