Abstract
Background
The purpose of our research was to examine the relationship between male age and semen parameters in a range of ages (from 20s to 60s) in Egg Donation Program (EDP) cycles. EDP provides a pool of high quality oocytes, thus allowing better analysis of the sperm efficacy.
Discussion
The retrospective study population consisted of 484 male partners of patients undergoing EDP in in-vitro fertilization (IVF) treatments. A comparison was made of male age and sperm parameters within two groups: cycles resulting in a pregnancy (pregnant group) and cycles which failed to achieve a pregnancy (non-pregnant group). The men involved in the pregnant group were found to be significantly younger 43.2 ± 8.1 than those of the non-pregnant group 46.8 ± 7.8 (p = 0.003). Analysis of sperm morphology revealed a significant prevalence of teratozoospermia in males of the non-pregnant group, as compared to the males of the pregnant group (29% vs. 11%, respectively). The results also demonstrate that sperm parameters are apparently not diminished until men reach the age of 40. However, between 40–50 years old semen parameters deteriorate. Male age was found to be related to a reduction in sperm strict criteria: 44.8 in normozoospermia, 47.9 (p = 0.02), 48.4 (p = 0.04) and 51.9 (p = 0.001) years old in mild teratozoospermia, moderate teratozoospermia and severe teratozoospermia, respectively. Additionally, the results showed that the percentage of “healthy” embryos on day 3 of embryo culture was lower in the non-pregnant group (26%), as compared with the pregnant group (34%; p = 0.01).
Conclusion
Our study confirms that sperm parameters are reduced by age and suggests that this age-dependent effect could be a reason for failures in IVF cycles even in EDP couples.
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Girsh, E., Katz, N., Genkin, L. et al. Male age influences oocyte-donor program results. J Assist Reprod Genet 25, 137–143 (2008). https://doi.org/10.1007/s10815-008-9215-4
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DOI: https://doi.org/10.1007/s10815-008-9215-4