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Effect of Cryopreservation on Semen Sample
S K Rath1, P Tarneja2, Man Singh3
1Classified Specialist (Obstetrics and Gynaecology), 151 Base Hospital, C/o 99 APO.
Medical Journal, Armed Forces India
|July 14, 2016
Summary
Semen cryopreservation can reduce fertilizing potential, but sample quality post-thaw correlates with pre-freeze condition. Five pregnancies resulted, showing preserved fertility in some thawed samples.
Area of Science:
- Reproductive biology
- Cryobiology
- Andrology
Background:
- Semen preservation is crucial for assisted reproductive technologies.
- Cryopreservation can negatively impact sperm viability and function.
- Understanding factors influencing post-thaw semen quality is essential.
Purpose of the Study:
- To evaluate the impact of cryopreservation on semen quality.
- To determine the relationship between pre-freeze semen parameters and post-thaw viability.
- To assess the fertilizing potential of cryopreserved semen samples.
Main Methods:
- Sixty semen samples were cryopreserved in three groups.
- Samples were thawed after three months for analysis.
- Pregnancy rates were monitored following insemination with thawed samples.
Main Results:
- Post-thaw semen yield ranged from 66% to 72%.
- A linear correlation was observed between pre-freeze semen quality and post-thaw yield.
- Five pregnancies were achieved, confirming the utility of preserved samples.
- Subnormal semen samples did not withstand the freezing process effectively.
Conclusions:
- Semen cryopreservation success is dependent on initial sample quality.
- Careful selection of samples is necessary for successful long-term semen preservation.
- Cryopreserved semen retains fertilizing capacity, particularly for samples with good pre-freeze parameters.
