Correlation study of male semen parameters and embryo aneuploidy in preimplantation genetic testing for aneuploidy

Abstract

ObjectiveThe purpose of this study was to evaluate the influence of abnormal semen parameters on embryo aneuploidy based on single nucleotide polymorphism microarray (SNP array).MethodsA total of 464 blastocysts from 103 PGT-A cycles were analyzed. The embryo quality and embryo aneuploidy rates were compared between different groups which divided by male semen parameters (sperm concentration, motility, morphology, and DFI) according the WHO criteria (2021).ResultsThe total blastocysts chromosome aneuploidy rate was 42.3% (191/452). In the teratozoospermia group, the good-quality embryo and blastocyst formation rate were lower than the normal group(44.4% vs 60.7%, P <0.01; 33.3% vs 43.5%, P <0.05), The good-quality embryo rate in normal DFI group was significantly higher than high-DFI group (59.0% vs 48.4%, P < 0.05). The blastocyst aneuploidy rate in low sperm concentration group, and high DFI group was no differences between with that in normal sperm concentration and DFI group (47.7% vs 37.8% and 44.7% vs 37.8%, P>0.05). The aneuploid rate of blastocyst in teratozoospermic and asthenozoospermia group was significantly higher than that of normal morphology and motility group (50.0% vs 34.0% and 46.7% vs 33.7%, P<0.05).ConclusionOur study revealed that sperm DFI were positively correlated with blastocyst aneuploidy rate, while sperm motility and sperm morphology rate were negatively correlated with blastocyst aneuploidy rate. Abnormal semen parameters may affect embryo quality and increase the aneuploidy rate of blastocyst chromosomes, suggesting that in clinical practice of assisted reproduction patients with abnormal semen parameters can be treated in advance to improve sperm quality, so as to reduce the impact on embryo quality and achieve a better pregnancy outcome.

Leukocytospermia does not negatively impact outcomes in in vitro fertilization cycles with intracytoplasmic sperm injection and preimplantation genetic testing for aneuploidy: findings from 5435 cycles

“…However, since leukocytospermia has been linked to increased DNA fragmentation, directly testing for DNA fragmentation prior to IVF treatment may be more helpful. Several studies have suggested a link between higher sperm DNA fragmentation and blastocyst aneuploidy rate [ 22 , 23 ]. In our study, the aneuploidy rate was slightly higher in the leukocytospermia group but did not reach significance.…”

Effects of histones related to sperm chromatin on embryo development and ART outcomes

“…[7] The abnormal expression of sperm-specific nuclear proteins or their association with chromatin can alter sperm chromatin structure and affect sperm function. [8,9] In the 6th edition of the WHO manual for human semen analysis, sperm DNA fragmentation, sperm chromatin, sperm aneuploidy, and semen interleukin have been added.…”