Researchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem-cell ...

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 ...

A man who battled childhood cancer has received the first known transplant of sperm-producing stem cells, in a study aimed at restoring the fertility of cancer's youngest survivors. Jaiwen Hsu was 11 ...

The world is on the brink of another revolution thanks to an emerging technology called in vitro gametogenesis, or IVG, which would allow doctors to develop eggs and sperm from a surprising source: ...

Researchers at the UC Davis College of Biological Sciences have discovered that a little-known protein called ATF7IP2 helps to inactivate the X and Y chromosomes during cell divisions that lead to ...

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 ...

Spermatogenesis depends on micronutrients because sperm cells show high sensitivity to oxidative damage caused by their lipid ...

New research has found that harmful genetic changes in a man's sperm become much more common as he gets older. This happens partly because some of these harmful changes are actually favored (or given ...