Paterna Biosciences said it has mastered the molecular signals that teach stem cells how to mature into sperm for a promising ...

CHICAGO (Reuters) - U.S. researchers have found a way to coax human embryonic stem cells to turn into the types of cells that make eggs and sperm, shedding light on a stage of early human development ...

WASHINGTON (AP) _ Embryonic stem cells have been encouraged to grow into sperm cells for the first time, Japanese scientists report. The work is very preliminary, and was done in the laboratory with ...

Researchers are delving into the molecular-level details of sperm formation, with a particular focus on how abnormalities in this process might lead to male-factor infertility. Sperm play a critical ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

Nearly eight to 12 percent of couples all over the world face fertility issues, with male infertility accounting for almost 50 percent of the cases. 1 A common cause of male infertility is errors ...

Testicular organoids generated from mice pups and incubated in a dish for 21 days. Sertoli cells, which are the cells responsible for the formation of the tubules in the testicle, appear in red and ...

(Francesco Carta fotografo/Moment/Getty Images) The last time a male contraceptive was approved for use in the United States ...