A commentator yells excitedly as hundreds of spectators stand glued to a video of a racecourse—but the athletes they are ...

His parents enrolled him in a study that was collecting and storing immature testicular tissue, and the sperm-forming stem cells in them, from young patients with the goal of eventually giving ...

A man in his early 20s has received the world's first sperm-making stem cell transplant in a new procedure that could be groundbreaking for infertility treatment. Until now, the procedure had ...

Now, scientists are testing a potential treatment: transplanting sperm-forming stem cells into the reproductive system. "If refined and proven safe, spermatogonial stem cell (SSC) transplantation ...

Kanazawa University and colleagues have achieved a breakthrough in understanding sperm DNA packaging. Using high-speed atomic ...

Spermatogonial stem cells are the foundation of sperm production. Present in the testes from birth, these cells remain dormant until puberty, when hormonal changes trigger their development into ...

Meiosis, as described above, is the process by which certain sex cells are created. If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells.

A man in his early 20s received a transplant of his own sperm-producing stem cells, which had been frozen since his childhood, in an attempt to regain fertility. Doctors are waiting to see if the ...

Meiosis, as described above, is the process by which certain sex cells are created. If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells.