More than one-sixth of adults around the world experience infertility in their lifetime. There is a high unmet need not only for increased access to affordable, high-quality fertility care for those ...

Once a sperm has broken through to an egg cell in order to fertilize it, the two cells need to hold together tightly. This occurs via a type of protein binding that is among the strongest in ...

An egg cell and a sperm need to hold together tightly in the Fallopian tube in order to fuse, resulting in the creation of a new organism. One key part of this process involves the proteins Juno, on ...

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 ...

How a sperm and an egg fuse together has long been a mystery. New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal ...

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 ...

Creating human eggs from adult cells just got one step closer to reality. A technique used in cloning combined with fertilization and a bit of chemical coaxing caused human skin cells to produce eggs ...

Egg fertilization is often described as an epic swim meet: Millions of sperm swim as fast as they can toward the egg until one — the fastest, strongest, healthiest sperm of them all — wins the race ...

PORTLAND, Ore. — Oregon Health and Science University has published new research that could represent a game-changer for fertility treatments. At the same time, an anti-abortion group is raising ...