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Seasonal variations in human seminal parameters
1Edinburgh Parallel Computer Center, The University of Edinburgh, James Clerk Maxwll Building, GB- EH9 3JZ, Edinburgh, UK. krause@mailer.uni-marburg.de
European Journal of Obstetrics, Gynecology, and Reproductive Biology
|February 23, 2002
Summary
Semen quality shows seasonal variations, particularly acrosin activity peaking in March. This understanding of circannual trends in sperm parameters aids reproductive medicine decisions.
Area of Science:
- Reproductive Medicine
- Andrology
- Human Genetics
Background:
- Sperm parameters and hormone levels are crucial for male fertility assessment.
- Understanding seasonal influences on these parameters can optimize diagnostic and therapeutic strategies.
Purpose of the Study:
- To investigate seasonal variations in sperm and hormone parameters within an andrology laboratory setting.
- To identify potential circannual trends affecting male reproductive health.
Main Methods:
- Analysis of semen and hormone values from 2454 male patients between 1990 and 1997.
- Application of Edwards' method for calculating seasonal trends in the data.
Main Results:
- No significant seasonal variation was observed in the overall mean sperm count.
- A significant circannual trend was noted in patients born in specific birth year groups (1950-1954, 1955-1959, 1965-1969).
- Acrosin activity exhibited a significant seasonal variation, with peak levels observed in March.
Conclusions:
- Circannual variations in semen parameters and hormone levels are relevant for clinical decision-making in reproductive medicine.
- Knowledge of these seasonal patterns can inform diagnostic approaches and treatment timing for infertility.