Analysis of seasonal variability of sperm donors’ semen parameters
- Authors: Korneyev I.A.1, Zasseev R.D.2, Pashina O.B.2, Mamedov A.E.1, Dogov A.M.1, Krylov O.A.1
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Affiliations:
- Academician I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Healthcare of the Russian Federation
- International Centre for Reproductive Medicine
- Issue: Vol 8, No 3 (2018)
- Pages: 28-35
- Section: Articles
- URL: https://journals.rcsi.science/uroved/article/view/10460
- DOI: https://doi.org/10.17816/uroved8328-35
- ID: 10460
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Abstract
Introduction. The concept of seasonal variability of sperm parameters is controversial. However, it should be considered during medical evaluation and solicitation of sperm donors.
Aim. To evaluate seasonal variability of sperm parameters from anonymous sperm donors in a reproductive medicine center.
Materials and methods. A retrospective study of 1252 semen samples from 39 sperm donors (mean age 27.1 ± 3.9 years) in a reproductive medicine center in Saint Petersburg during the period from October 1, 2015 to October 1, 2017 was performed according to WHO 2010 recommendations. Semen volume, sperm concentration, total sperm number, progressive motility, and number of progressively motile sperm were analyzed.
Results. Individual variability in semen parameters was high. The mean ejaculate volume in the summer months was higher than in the autumn, winter, and spring (t = 3.65, p < 0.001; t = 4.18, p < 0.0001; t = 1.92, p = 0.056 respectively). The lowest volume (2.83 ± 1.32 ml) was registered in January. The mean sperm concentration in summer was lower than in autumn, winter, and spring (t = 3.65, p < 0.001; t = 4.18, p < 0.0001; t = 1.92, p = 0.056 respectively). It was higher in winter than in spring and autumn (t = 2.54, p = 0.012; t = 1.72, p = 0.082 respectively). The highest mean sperm concentration was registered in January and the lowest in July (157.2 ± 46.6 and 131.9 ± 44.0 million sperm per ml, respectively). No significant seasonal differences were found in total sperm number, progressive motility, or number of progressively motile sperm (p > 0.1).
Conclusions. The study suggests there is both individual and seasonal variability in sperm donors’ semen parameters. As several semen samples are needed to rate semen quality, we recommend that semen analysis for a potential sperm donor be performed in the summer months.
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##article.viewOnOriginalSite##About the authors
Igor A. Korneyev
Academician I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Healthcare of the Russian Federation
Author for correspondence.
Email: iakorneyev@yandex.ru
Doctor of Medical Science, Professor, Department of Urology
Russian Federation, Saint PetersburgRuslan D. Zasseev
International Centre for Reproductive Medicine
Email: r.zasseev@gmail.com
Urologist
Russian Federation, Saint PetersburgOl'ga B. Pashina
International Centre for Reproductive Medicine
Email: r.zasseev@gmail.com
Biologist
Russian Federation, Saint PetersburgAli E. Mamedov
Academician I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Healthcare of the Russian Federation
Email: r.zasseev@gmail.com
Student
Russian Federation, Saint PetersburgAl'bert M. Dogov
Academician I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Healthcare of the Russian Federation
Email: r.zasseev@gmail.com
Student
Russian Federation, Saint PetersburgOleg A. Krylov
Academician I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Healthcare of the Russian Federation
Email: r.zasseev@gmail.com
Student
Russian Federation, Saint PetersburgReferences
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