BACKGROUND Male infertility affects> 20 million men worldwide and represents a major
health concern. Although multifactorial, male infertility has a strong genetic basis which has …

The evaluation of sperm cell motility and morphology is an essential parameter in the
examination of sperm quality and in the establishment of correlations between sperm quality …

This definitive and essential source of reference has been thoroughly updated and revised
to meet the requirements of all laboratories involved in the analysis of human semen. The …

OBJECTIVE: To investigate whether there is an impact of different sources of reactive
oxygen species (ROS) on sperm functions. DESIGN: Prospective study. SETTING: Patients …

Objective: To review possible causes for male factor subfertility with emphasis on nutritional
factors such as zinc and folate. Design: A literature search was performed on MEDLINE and …

In this study, the semen analysis results of a fertile population were compared with those
from a subfertile population, in order to establish normal cut-off values for the standard …

We are coming to appreciate that at fertilization human spermatozoa deliver the paternal
genome alongside a suite of structures, proteins and RNAs. Although the role of some of the …

Humans are exposed to cobalt (Co) and chromium (Cr) from industry and surgical devices,
most notably orthopedic joint replacements. This review compares the potential health …

Abstract Purpose of Review The classification of morphologically normal sperm has been
progressively redefined. Concurrently, our understanding of the significance of sperm …

BACKGROUND Assessment of sperm morphology (including morphometry) is extensively
used to determine one of the qualities of a semen sample and depends on the differential …