BACKGROUND In natural conception only a few sperm cells reach the ampulla or the site of
fertilization. This population is a selected group of cells since only motile cells can pass …

Purpose Intracytoplasmic sperm injection (ICSI) is the most widely utilized assisted
reproductive technique (ART) worldwide. In this feature, we review the early assisted …

Background Except for testicular cancer and Hodgkin's disease, baseline data on semen
quality in case of cancers as well as systemic pathologies of the young adult are scarce or …

Simple Summary Practitioners look for specific treatments to solve sub-fertility, which
nowadays represents a common challenge in canine reproduction. In human, as well as in …

Despite many cryopreservation techniques in bovine semen, various stressors' detrimental
effects remain a significant issue. The present study targeted to assess the role of semen …

The generation of reactive oxygen species during cryopreservation of human sperm has
negative effects on the consistency of the thawed sperm. The antioxidant properties of …

Growing evidence suggests that persistent environmental chemicals such as
polychlorinated biphenyls may adversely affect human fecundity. The purpose of this study …

Background: One of the causes of male fertility disorders is the exposure of oxidative stress
on the human sperm. Understanding the mechanism of disturbance is important to develop …

The spermatozoa have limited antioxidant defences, a high polyunsaturated fatty acids
content and the impossibility of synthesizing proteins, thus being susceptible to oxidative …

Antifreeze proteins (AFP) play an important role in cellular survival at sub-zero temperatures.
This study assessed the effect of AFP type I or III in semen extender (TRIS-egg yolk) for ram …