There is a dynamic interplay between pro-and anti-oxidant substances in human ejaculate.
Excessive reactive oxygen species (ROS) generation can overwhelm protective mechanism …

Sexual reproduction requires the fusion of sperm cell and oocyte during fertilization to
produce the diploid zygote. In mammals complex changes in the plasma membrane of the …

Abstract Cyclic adenosine 3′, 5′-monophosphate (cAMP), the first second messenger to
be described, plays a central role in cell signaling in a wide variety of cell types. Over the last …

Sperm–egg interaction is a carbohydrate-mediated species-specific event which initiates a
signal transduction cascade resulting in the exocytosis of sperm acrosomal contents (ie, the …

Fertilization is a matter of life or death. In animals of sexual reproduction, the appropriate
communication between mature and competent male and female gametes determines the …

Intracellular Ca 2+ stores play a central role in the regulation of cellular [Ca 2+] i and the
generation of complex [Ca 2+] signals such as oscillations and waves. Ca 2+ signalling is of …

Binding to the zona pellucida of an egg stimulates the spermatozoon to undergo the
acrosome reaction, a process that enables it to penetrate the egg. Before this binding, the …

Binding to the egg's zona pellucida stimulates the spermatozoon to undergo acrosome
reaction, a process which enables the sperm to penetrate the egg. Prior to this binding, the …

The sperm acrosome reaction and penetration of the egg follow zona pellucida binding only
if the sperm has previously undergone the poorly understood maturation process known as …

Nongenomic Actions of Steroid Hormones in Reproductive Tissues* | Endocrine Reviews |
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