During sperm production, an enormous amount of DNA has to be packed into a very small space without breaking anything. A central role is played by certain proteins around which the DNA thread is ...

Although the process of shedding spermatid cytoplasm has been observed in previous studies, the molecular mechanisms underlying it remain unclear. Inside a germ cell, which develops into either an egg ...

Researchers in Japan have uncovered key information about a protein that plays a crucial role in the process of sperm production, which could unlock doors for male contraception. Scientists from Osaka ...

Scientists have discovered only a handful of genes responsible for stem cell self-renewal, a property that allows stem cells to continue giving rise to a variety of cell types during an organism's ...

Unlike women, who are born with all the eggs they'll ever have, men can continue to produce sperm throughout their adult lives. To do so, they require a constant renewal of spermatogonial stem cells, ...