Sperm DNA Fragmentation: The Concept and Its Use in Assisted Reproduction

Area of Science:

• Reproductive Biology
• Genetics
• Conservation Biology

Background:

• Sperm DNA quality is declining globally in humans and animals.
• Sperm DNA fragmentation (SDF) negatively affects reproductive outcomes.
• Assisted reproduction techniques require optimal sperm DNA integrity.

Purpose of the Study:

• To review the causes and consequences of SDF in humans and animals.
• To explore methods for assessing and managing SDF.
• To apply findings to enhance assisted reproduction strategies, particularly for endangered species.

Main Methods:

• Review of scientific literature on sperm DNA damage and repair mechanisms.
• Analysis of factors contributing to SDF, including biological and iatrogenic causes.
• Examination of methodologies for SDF assessment and mitigation strategies.

Main Results:

• SDF assessment is a critical indicator of semen quality, especially for intracytoplasmic sperm injection (ICSI).
• Causes of high SDF are multifactorial, requiring standardized protocols for management.
• Personalized treatments are essential for optimizing gamete quality in humans and tailoring strategies for endangered species.

Conclusions:

• Effective management of SDF is vital for successful assisted reproduction in humans and conservation efforts for endangered species.
• Tailored strategies, mimicking natural selection, can improve sperm DNA quality and fertilization efficacy.
• Further research into synergistic effects of management strategies can enhance sperm availability for fertilization.