Latest Germ cells Stories
For the first time ever, British scientists announced on Wednesday they had created human sperm using embryonic stem cells.
In the competition for a partner, males typically have to vie with each other â€“ be it with a colorful plumage, a large set of antlers or a seductive courtship dance.
Hormones and chemicals resulting from happiness, depression and other mental states can affect a parent's eggs or sperm, researchers in Mexico suggest. Dr.
University of Nevada School of Medicine scientists in the Department of Physiology and Cell Biology have discovered insight into the reproductive workings of the male sex chromosome that may have significant implications for male infertility and contraception.
In contrast to women, men are fertile throughout life, but research at the Sahlgrenska Academy, University of Gothenburg, Sweden, has now shown that a fertilising sperm can get help from the egg to rejuvenate.
New treatments for infertility could be closer to reality, thanks to a discovery from scientists at the UniversitÃ© de MontrÃ©al and Maisonneuve-Rosemont Hospital Research Centre.
Portuguese scientists' contribution crucial to new study to be published in Cell.
For the first time, UCLA researchers have reprogrammed human induced pluripotent stem (iPS) cells into the cells that eventually become eggs and sperm, possibly opening the door for new treatments for infertility using patient-specific cells.
"Every sperm is sacred. Every sperm is great. If a sperm is wasted, God gets quite irate," goes the song from Monty Python's movie The Meaning of Life.
Scientists discover why cells that become sperm and ova can't copy their own genes
- Withering but not falling off, as a blossom that persists on a twig after flowering.