Sequential analysis of sperm functional aspects involved in fertilisation: a pilot study.

Area of Science:

• Reproductive Medicine
• Andrology
• Infertility Research

Background:

• Male factor infertility affects a significant portion of couples seeking fertility treatment.
• Advanced diagnostic techniques are crucial for understanding the causes of male infertility.
• Sperm function tests offer insights beyond basic semen parameters.

Purpose of the Study:

• To evaluate the correlation between specific sperm functional parameters and in vitro fertilization (IVF) outcomes.
• To assess the diagnostic value of tests including DNA integrity, apoptosis, and acrosome reaction in male infertility.

Main Methods:

• Analysis of semen samples from 78 men undergoing IVF.
• Assessment of sperm functional aspects: semen profile, DNA integrity, apoptosis, chromatin packaging, acridin orange staining, zona binding capacity, and zona-induced acrosome reaction (AR).
• Logistic regression analysis to correlate sperm function tests with fertilization rates.

Main Results:

• Sperm DNA damage showed a significant negative association with fertilization rates (r = -0.56; P ≤ 0.0005).
• Sperm with normal DNA (r = -0.57, P ≤ 0.0004) and successful zona-induced acrosome reaction (AR) (r = 0.33, P ≤ 0.002) were positively correlated with higher fertilization rates.
• These functional tests provide predictive value for fertilization success.

Conclusions:

• Diagnostic andrology, focusing on sperm DNA integrity and functional tests like AR, is essential for male infertility work-up.
• These advanced assessments aid clinicians in selecting appropriate therapeutic strategies for male factor infertility.
• Integrating comprehensive semen analysis improves the management of infertile men.