Spermatogenesis is a cell differentiation process that ensures the production of fertilizing
sperm, which ultimately fuse with an egg to form a zygote. Normal spermatogenesis relies …

Abstract The 3′, 5′-cyclic adenosine monophosphate (cAMP) dependent protein kinase
(PKA) is a tetrameric holoenzyme comprising a set of two regulatory subunits (PKA-R) and …

Recent studies have shown that several members of the G-protein-coupled receptors
(GPCR) superfamily play crucial roles in the maintenance of ion–water homeostasis of the …

Proteomic methodologies offer a robust approach to identify and quantify thousands of
proteins from semen components in both fertile donors and infertile patients. These …

The male gamete is not completely mature after ejaculation and requires further events in
the female genital tract to acquire fertilizing ability, including the processes of capacitation …

In order to penetrate the egg, spermatozoa must undergo the acrosome reaction in close
proximity to the egg. This process can take place only after a series of biochemical changes …

In order to fertilize the egg, spermatozoa must undergo a series of biochemical processes in
the female reproductive tract collectively called capacitation. Only capacitated sperm can …

The polyandrous mating system of honeybees (Apis mellifera L.) has garnered widespread
attention. Long-lived honeybee queens only mate early in maturation, and the sperm …

Sperm capacitation is a complex process essential for the spermatozoon to recognize and
fertilize the oocyte. For capacitation to occur, human spermatozoa require low levels of …

To acquire the capacity to fertilize the oocyte, mammalian spermatozoa must undergo a
series of biochemical reactions in the female reproductive tract, which are collectively called …