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 ...

Researchers have found that targeted delivery of messenger RNA (mRNA) can restore sperm production and fertility in genetically infertile male mice. The findings, published in Stem Cell Reports, ...

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 ...

Sperm cells have been created from a female human embryo in a remarkable breakthrough that suggests it may be possible for lesbian couples to have their own biological children. British scientists who ...

WASHINGTON (Reuters) - Stem cells that normally make sperm can be taught to make other tissues as well, perhaps offering men a medical repair kit, U.S. researchers said on Wednesday. Sign up here.

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 ...

July 10, 2006 — -- The BBC is reporting that scientists in Germany have not only grown sperm from the embryonic stems cells of mice, but that the sperm was capable of producing offspring. While ...

A team led by University of Osaka researchers has developed a technique to generate testes from mouse embryonic stem cells ...

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 ...

In human cells, DNA carries chemical or "epigenetic" marks that decide how genes will be used in different tissues. Yet in a ...