Infertility is assumed to arise exclusively from male-and female-dependent pathological
factors. However, recent studies have indicated that reproductive failure may also result from …

Several semen parameters are used to discriminate the fertile male from the subfertile male.
The most widely used parameters are sperm concentration, motility, progressive motility, and …

An increasing number of people are affected by infertility. According to the World Health
Organization, one out of six people globally suffers from this condition in their lifetime. To …

Human leukocyte antigen (HLA) immune genes play an important role in partner selection,
but it has remained unclear if nonrandom pairing with respect to parental HLA genes could …

OBJECTIVE For fertilization to occur, ejaculated sperm must gain the functional capacity to
fertilize. Previously, an assay to detect sperm function demonstrated that cycle failure could …

Spermatozoa should travel throughout the female reproductive tract to reach its ultimate
goal, fertilization of the oocyte. At the ejaculation moment, millions of sperm within a few …

Considering the challenges surrounding causative factors in male infertility, rather than
relying on standard semen analysis, the assessment of sperm subpopulations and …

It is estimated that about 20% of couples with difficulties to conceive have no identifiable
infertility conditions based on the routine investigation. Such couples are categorized as …

The evaluation of infertility in males consists of physical examination and semen analyses.
Standardized semen analyses depend on the descriptive analysis of sperm motility …

Fertilization is a step by step process that virtually starts at the gametogenesis and culminate
with the first division of the zygote. A successful fertilization depends on gamete potential …