Male infertility is a serious issue, often caused by low sperm counts. Now, researchers at Seoul National University have developed a way to deliver nanoparticles loaded with certain proteins directly ...

In science, we don't often get to talk about male repression, but a new discovery gives us just such a chance. It turns out that ovaries can only remain ovaries by constantly suppressing their ability ...

Mutant sperm-factories spread in men's testicles as they age to increase the risk of children with genetic diseases, researchers have shown. Millions of spermatogonia produce a constant supply of ...

The Zika virus reduces the size of testes in infected mice up to 21 days after infection, according to a new Yale study. The persistence of the virus in the male reproductive organ can lead to sexual ...

Researchers say they have found a way to pluck out a potent type of stem cell from the testes of adult mice and transform it into other kinds of tissue, including heart muscle and blood vessels. The ...

Resolving the evolution of soft-tissue structures, crucially depends on accurate knowledge of the evolutionary relationships between the considered species. If these relationships are not fully ...

According to the Mayo Clinic, about 15% of couples are infertile, and male infertility plays a role in over one-third of these cases. Often, problems with sperm development are to blame. Now, ...

A small study of deceased nonvaccinated men who died of COVID-19 complications suggests the testes may be a sanctuary for the SARS-CoV-2 virus, raising questions about potential consequences for ...

Researchers have located one more anatomical organ where microplastics — of all shapes and constituents — are found: human testes. And although they can’t say for sure, they suspect the presence of ...

Scientists have succeeded in isolating stem cells from human testes. The cells bear a striking resemblance to embryonic stem cells -- they can differentiate into each of the three main types of ...