Abstract
Purpose
Chromosomal polymorphisms are associated with infertility, but their effects on assisted reproductive outcomes are still quite conflicting, especially after IVF treatment. This study evaluated the role of chromosomal polymorphisms of different genders in IVF pregnancy outcomes.
Methods
Four hundred and twenty-five infertile couples undergoing IVF treatment were divided into three groups: 214 couples with normal chromosomes (group A, control group), 86 couples with female polymorphisms (group B), and 125 couples with male polymorphisms (group C). The pregnancy outcomes after the first and cumulative transfer cycles were analyzed, and the main outcome measures were live birth rate (LBR) after the first transfer cycle and cumulative LBR after a complete IVF cycle.
Results
Comparison of pregnancy outcomes after the first transfer cycle within group A, group B, and group C demonstrated a similar LBR as well as other rates of implantation, clinical pregnancy, early miscarriage, and ongoing pregnancy (P > 0.05). However, the analysis of cumulative pregnancy outcomes indicated that compared with group A, group C had a significantly lower LBR per cycle (80.4 vs 68.00%), for a rate ratio of 1.182 (95% CI 1.030 to 1.356, P = 0.01) and a significantly higher cumulative early miscarriage rate (EMR) among clinical pregnancies (7.2 vs 14.7%), for a rate ratio of 0.489 (95% CI 0.248 to 0.963, P = 0.035).
Conclusion
Couples with chromosomal polymorphisms in only male partners have poor pregnancy outcomes after IVF treatment manifesting as high cumulative EMR and low LBR after a complete cycle.
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Acknowledgements
The authors would like to thank Keliang Wu and other personnel in the IVF laboratory for their help in precious participation in laboratory procedures.
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All procedures performed in our study involving human participants were in accordance with the ethical standards of the institutional review board of reproductive medicine and with the 1964 Helsinki Declaration and its later amendments. For this type of study, formal consent is not required. Informed consent was obtained from all individual participants included in the study.
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The authors declare that they have no conflict of interest.
Funding
This work was supported by the National Basic Research Program of China (973 Program) (2012CB944700) and Science Research Foundation Item of No-earnings Health Vocation (201402004).
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Ni, T., Li, J., Chen, H. et al. Male chromosomal polymorphisms reduce cumulative live birth rate for IVF couples. J Assist Reprod Genet 34, 1017–1025 (2017). https://doi.org/10.1007/s10815-017-0951-1
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DOI: https://doi.org/10.1007/s10815-017-0951-1