Use of suboptimal sperm increases the risk of aneuploidy of the sex chromosomes in preimplantation blastocyst embryos

Journal article


Coates, A., Hesla, J., Hurliman, A., Coate, B., Holmes, E., Matthews, R., Mounts, E., Turner, K., Thornhill, A. and Griffin, D. 2015. Use of suboptimal sperm increases the risk of aneuploidy of the sex chromosomes in preimplantation blastocyst embryos. Fertility and Sterility. 104 (4), pp. 866-872. https://doi.org/10.1016/j.fertnstert.2015.06.033
AuthorsCoates, A., Hesla, J., Hurliman, A., Coate, B., Holmes, E., Matthews, R., Mounts, E., Turner, K., Thornhill, A. and Griffin, D.
Abstract

Objective

To compare autosomal and sex chromosome aneuploidy rates of embryos derived from sperm with abnormal and normal parameters.

Design

Retrospective cohort study.

Setting

Assisted reproduction center.

Patient(s)

Three thousand eight hundred thirty-five embryos generated from 629 couples undergoing IVF.

Intervention(s)

None.

Main Outcome Measure(s)

Incidence of aneuploidy in the trophectoderm of blastocyst embryos derived from standard IVF embryos and intracytoplasmic (ICSI) males with normal and oligozoospermic semen samples, in couples with donor eggs (mean maternal age, 25.0 years) and their own eggs (mean maternal age, 35.4 years).

Result(s)

The rate of sex chromosome aneuploidy was significantly (around threefold) higher in the oligozoospermic group compared with in both control groups (standard vs. ICSI insemination). This applied whether donor (young) or own (older) eggs were used. Significant differences were seen in the oligozoospermic samples for autosomes 1, 2, 11 (own eggs), and 18 (donor eggs) compared with both control groups; however, no significant difference was seen between each of the treatment groups for the overall rate of autosomal aneuploidy. No significant differences were seen between the two control groups (normozoospermic males, standard vs. ICSI insemination) in either of the egg group types for any chromosome pairs.

Conclusion(s)

Severe male factor infertility is associated with a significant increase in the occurrence of sex chromosome abnormalities in blastocyst embryos compared with in embryos derived from normal semen samples. Aneuploidy rates in embryos derived from sperm with normal parameters were not significantly different whether ICSI or standard insemination was used to achieve fertilization. These results highlight severe male factor infertility as a possible referral category for preimplantation comprehensive chromosomal screening.

Year2015
JournalFertility and Sterility
Journal citation104 (4), pp. 866-872
PublisherScience Direct
ISSN0015-0282
Digital Object Identifier (DOI)https://doi.org/10.1016/j.fertnstert.2015.06.033
Publication dates
Print11 Mar 2015
Publication process dates
Deposited30 Jun 2017
Output statusPublished
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https://repository.canterbury.ac.uk/item/8836q/use-of-suboptimal-sperm-increases-the-risk-of-aneuploidy-of-the-sex-chromosomes-in-preimplantation-blastocyst-embryos

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