BACKGROUND Cryopreservation has been extensively used in assisted reproductive
technology, agriculture and conservation programmes for endangered species. The …

On the one hand, reactive oxygen species (ROS) are mandatory mediators for essential
cellular functions including the function of germ cells (oocytes and spermatozoa) and …

The cryopreservation of spermatozoa is an important reproductive technology for the
preservation of fertility in man and animals. Since the serendipitous discovery of glycerol as …

Introduction Human sperm freezing is very widely used for male fertility preservation. This
procedure consists in adding cryoprotectants to the spermatozoa followed by cooling and …

OBJECTIVE: To analyze the effect of cryopreservation on sperm DNA fragmentation (SDF) in
two cytometric sperm populations, PIbrighter and PIdimmer, and to test the effects of Opuntia …

STUDY QUESTION Are there significant differences in the ability of X chromosome-bearing
(X) spermatozoa and Y chromosome-bearing (Y) spermatozoa to survive incubation under …

BACKGROUND: Freeze damage is one of the most important factors which impair the
membrane and DNA integrity of sperm cells. OBJECTIVE: The present study aims to …

The present study was conducted to examine the protective role of arginine and trehalose
on post-thaw bull sperm and oxidative stress parameters. Five ejaculates for each bull were …

Slow freezing is the most commonly used technique for the cryopreservation of spermatozoa
in clinical practice. However, it has been shown to have a negative impact on sperm function …

Objective: To study the resistance of human spermatozoa to cryoinjury in repeated cycles of
thaw-refreezing by using the fast liquid nitrogen vapor method. Material and Methods …