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 ...

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 ...

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 ...

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 ...

Scientists have created human eggs in the lab using a similar process to the one used to clone the famous Dolly the sheep, then used in vitro fertilization (IVF) to turn them into embryos. Although ...

New insights into a sophisticated process that protects sperm cells has revealed a mechanism, similar to an immune system, ...

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 ...

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