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 ...

More successful IVF, egg cells from men, and sperm cells from women? Biotech researchers aim to greatly expand reproductive opportunity. WATCH: New infertility technologies could make the previously ...

On the morning of Jaiwen Hsu’s stem cell transplant in November 2023, the atmosphere in the hospital felt electric. Doctors had never before tried what they were going to attempt with someone like Hsu ...

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 ...

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 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 ...

Karen Hopkin: This is Scientific American’s Science, Quickly. I’m Karen Hopkin. Swimming against a current can be tough. But imagine having to do it in a fluid with the consistency of corn syrup. That ...