Oxidative stress occurs when the levels of reactive oxygen species (ROS) overcome the
antioxidant defenses of the organism, jeopardizing several biological functions, including …

The role of free radicals in normal cellular functions and different pathological conditions has
been a focus of pharmacological studies in the recent past. Reactive oxygen species (ROS) …

Thirty-five years ago the pioneering paper in Science (240: 1131) on the relationship
between sperm DNA integrity and pregnancy outcome was featured as the cover issue …

Over the past decades, there has been an emphasis on assessment of the use of natural
compounds in the prevention or repair of oxidative injury to spermatozoa. Curcumin (CUR) …

Sperm quality in insemination doses is known to affect pregnancy rates following artificial
insemination (AI) in a number of animal species. Furthermore, biotechnologies such as in …

A group of stallions with different reproductive indexes were used to study seasonal
variations in sperm quality (Equus caballus). Semen samples were collected from late …

Reactive oxygen species (ROS) are implicated in all aspects of cellular functions. While the
importance of ROS as signalling molecules is well described, ROS are also associated with …

The present study was designed to investigate the effect of partial deoxygenation of
extender on sperm quality, lipid peroxidation (LPO) and reactive oxygen species (ROS) in …

Two experiments were conducted to compare the effectiveness of different extenders
conventionally used for semen cryopreservation to maintain the viability and fertility of …

Oxidative stress is regarded as an important cause of sperm damage during
cryopreservation. However, seasonal changes in oxidative status in unfrozen and frozen …