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Non-viable sperm in the ejaculate: Lethal escorts for contemporary viable sperm
J Roca1, I Parrilla1, M A Gil1
1Veterinary Medicine, University of Murcia, Murcia, Spain.
Animal Reproduction Science
|March 8, 2016
Summary
Non-viable sperm negatively impact assisted reproductive technologies by reducing viable sperm function and embryo development. This review explores their origins, harmful effects, and mitigation strategies in porcine semen.
Area of Science:
- Reproductive Biology
- Sperm Physiology
- Assisted Reproductive Technologies (ART)
Background:
- Non-viable sperm are common in ejaculates and increase during semen storage, especially cryopreservation.
- Their presence poses challenges for ART, affecting semen quality and fertility outcomes.
- Understanding the detrimental effects of non-viable sperm is crucial for improving ART success rates.
Purpose of the Study:
- To review the role of non-viable sperm in porcine semen used for ART.
- To elucidate the origin and detrimental pathways of non-viable sperm impacting viable sperm.
- To highlight current methods for mitigating the negative effects of non-viable sperm.
Main Methods:
- Comparative analysis of experimental data in porcine semen.
- Review of current scientific literature on sperm viability and ART outcomes.
- Discussion of sperm dysfunction mechanisms and mitigation strategies.
Main Results:
- Non-viable sperm significantly reduce the functional lifespan and fertility potential of viable sperm.
- Their presence impairs the ability of sperm to support healthy embryo development.
- Specific pathways exist through which non-viable sperm exert their negative influence.
Conclusions:
- Non-viable sperm are a critical factor affecting ART success, particularly in cryopreserved porcine semen.
- Addressing the origin and impact of non-viable sperm is essential for optimizing fertility.
- Available procedures can mitigate the harmful effects of non-viable sperm, improving ART outcomes.