Latest Germ cell Stories
Scientists from the UK and Israel have demonstrated for the first time that it is possible to make human egg and sperm cells using skin from two adults of the same sex – a breakthrough that may make it possible for same-sex couples to have children with shared DNA.
Researchers from the University of Cambridge and the Weizmann Institute in Chiacago have created the precursors to egg and sperm using human stem cells.
A new study, from the Stanford University School of Medicine and Montana State University, demonstrates that, when implanted into the reproductive system of a mouse model, stem cells created from adult, infertile men will yield primordial germ cells.
Shawn Ahmed, PhD, shows that tweaking specific cellular mechanisms helps tiny worms overcome infertility through a pathway of cellular interactions that result in long life.
Johns Hopkins researchers have discovered an unexpected phenomenon in the organs that produce sperm in fruit flies: When a certain kind of stem cell is killed off experimentally, another group of non-stem cells can come out of retirement to replace them.
A new generation of high yield plants could be created following a fundamental change in our understanding of how plants develop.
The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the Y chromosome contribution limited to only two genes: the testis determinant factor Sry and the spermatogonial proliferation factor Eif2s3y.
Mammalian females ovulate periodically over their reproductive lifetimes, placing significant demands on their ovaries for egg production.
Scientists recently completed a study that shows the possibility that stem cells work towards maturity at an earlier stage than originally thought.
Regenerative-medicine researchers have moved a promising step closer to helping infertile, premenopausal women produce enough eggs to become pregnant.
- Withering but not falling off, as a blossom that persists on a twig after flowering.