We don't yet know how to fully turn stem cells into sperm, so the team got around this by injecting the cells into mouse testes for the last stages of development. (newscientist.com)
The Zika virus attacks cells in mouse testes crucial for sperm and sex hormone generation and hampers reproduction, according to new research that raises the possibility that the virus could affect fertility in men. (scientificamerican.com)
In March however, German researchers — working in a political landscape even more restrictive than our own — reported turning sperm - producing cells from adult mouse testes into something very much like embryonic stem cells. (discovermagazine.com)