Infertility is an increasing global public health concern with socio-psychological implications
for affected couples. Remarkable advances in reproductive medicine have led to successful …

Reactive oxygen species (ROS) and oxidative stress (OS), the imbalance between the
production of free radicals and the cellular antioxidant defenses, are discussed in relation to …

Melatonin (MT) is a potent antioxidant with useful applications in several fields. Due to the
capacity to scavenge free radicals and enhance cellular endogenous antioxidant defenses …

The ability of the neurohormone melatonin to ameliorate cryopreservation-induced damage
to spermatozoa has been demonstrated in several domestic species. However, it is unclear …

The study of sperm subpopulations spans three decades. The origin, meaning, and practical
significance, however, are less clear. Current technology for assessing sperm morphology …

Simple Summary The oxidative stress in the cell is the result of an imbalance between
oxidants and the antioxidant defense system. In particular, oxidative stress in erythrocytes …

Reactive oxygen species (ROS) play an essential role in mammalian sperm capacitation.
NADPH oxidase 5 (NOX5) has been described as the main source of ROS production in …

The developmental competence of male and female gametes is frequently reduced under in
vitro conditions, mainly due to oxidative stress during handling. The amino-acid derived …

The aim of this study was to determine whether polymorphisms of the melatonin receptor 1A
(MTNR1A) gene influence the age at first mating in autumn-born ram-lambs and influence …

Prior to interaction with the oocyte, spermatozoa must undergo capacitation, which involves
a series of physio-chemical transformations that occur in the female tract. As capacitation is …