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 ...

During mammalian reproduction, millions of sperm undertake a journey that only one will finish. This journey to fertilization has been commonly viewed as a race: a sea of sperm competing to get to the ...

It may soon be possible to coax human skin cells into becoming functional eggs and sperm using a technique known as "in vitro gametogenesis." This involves the creation (genesis) of eggs and sperm ...

It's a Wednesday morning at the National Academies of Sciences, Engineering and Medicine in downtown Washington, D.C., and Dr. Eli Adashi is opening an unprecedented gathering: It's titled "In-Vitro ...

A new study shows that lab-grown sperm cells can be derived from stem cells. July 9, 2009 — -- The face of infertility-- in literature, in the media, in advocacy groups -- is so predominantly ...

The hidden cost of sperm storage: the largest study to date has found that sperm quality deteriorates across the animal ...

With the entry of women into public life and the workforce, many have postponed reproduction to the latter part of their reproductive years. This has led to the increasing use of assisted reproduction ...

WASHINGTON (Reuters) - Stem cells taken from the bone marrow of men can be coaxed into something that resembles an immature sperm cell, researchers working in Germany said on Friday. Sign up here.