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. 2023 Sep 12;27(3):428-435.
doi: 10.5935/1518-0557.20220074.

Involvement of SYCP2L and TDRD3 gene variants on ovarian reserve and reproductive outcomes: a cross-sectional study

Iasmim Ribeiro Rosa  1 , Caio Parente Barbosa  1   2 , Caroline Awoki Ferrandez  1 , Bianca Del Bel Sonoda  1 , Denise Maria Christofolini  1   2 , Camila Martins Trevisan  1 , Antonio Simone Laganà  3 , Carla Peluso  1 , Bianca Bianco  1   2
Affiliations

Involvement of SYCP2L and TDRD3 gene variants on ovarian reserve and reproductive outcomes: a cross-sectional study

Iasmim Ribeiro Rosa et al. JBRA Assist Reprod. .

Abstract

Objective: Single nucleotide variants have been implicated in the response to fertility treatment and a pharmacogenomic approach may help to customize therapy based on patient genome. We aimed to evaluate the effect, individual and combined, of SYCP2L (rs2153157:G>A) and TDRD3 (rs4886238:G>A) variants on ovarian reserve, response to controlled ovarian stimulation (COS) and reproductive outcomes of women undergoing in vitro fertilization (IVF) treatment.

Methods: This cross-sectional study included 149 normoovulatory women undergoing IVF. Genotyping was performed using the TaqMan real-time polymerase chain reaction method. Clinical parameters and reproductive outcomes were compared according to the genotypes of the variants studied.

Results: Considering ovarian reserve, there were no significant differences among SYCP2L or TDRD3 genotypes in terms of FSH levels or AFC; however, AMH levels were significantly different in carriers of both variants. Regarding the SYCP2L rs2153157:G>A variant, lower AMH levels were observed in women carrying an AA genotype compared to women carrying a heterozygous genotype (p=0.01). Considering the TDRD3 rs4886238:G>A variant, women carrying an AA genotype presented higher AMH levels than carriers of GG and GA genotypes (p=0.025). Nevertheless, no difference was found regarding response to COS or reproductive outcomes. Considering the combined effect of the variants, women carrying the heterozygous genotype of both variants presented statistically increased AMH levels compared to SYCP2L rs2153157 AA genotype carriers and TDRD3 rs4886238 GG genotype carriers (p=0.042).

Conclusions: Individually and combined, the SYCP2L rs2153157 and TDRD3 rs4886238 variants have an effect on AMH level.

Keywords: in vitro fertilization; infertility; ovarian reserve; pharmacogenetic; single nucleotide variant.

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