Sperm DNA integrity is crucial for fertilization and development of healthy offspring. The
spermatozoon undergoes extensive molecular remodeling of its nucleus during later phases …

BACKGROUND Studies in non-human mammals suggest that environmental factors can
influence spermatozoal DNA methylation, and some research suggests that spermatozoal …

Preservation of human spermatozoa in vitro at normothermia or hypothermia maintaining
their functions and fertility for several days plays a significant role in reproductive biology …

Research question What are the correlations between male age, traditional semen
parameters, sperm DNA fragmentation index (DFI) and high DNA stainability (HDS) in a …

Since the publication of the first edition of the WHO (World Health Organization) Laboratory
Manual for the examination of Human Semen in 1980, the reference values of sperm …

Variation in ejaculatory abstinence time and its influence on semen quality and clinical
reproductive outcomes is a growing concern among clinicians and researchers. The WHO …

This pilot study was conducted to explore the benefits of using a centrifugation-free device
based on the migration–sedimentation (MS) technique over centrifugation-based techniques …

In 1992 and subsequently, several reports indicated that ICSI was a successful technique to
achieve clinical pregnancy and live birth using spermatozoa with severely impaired …

According to the World Health Organization guidelines, ejaculatory abstinence (EA) of 2–7
days is recommended for semen analysis. This study aimed to determine how seminal …

Purpose The aim of our study was to evaluate the influence of different ejaculatory
abstinence time frames (several days versus 1 h) on semen parameters, blastocysts ploidy …