Sperm from stem cells could help some types of male infertility
Cells from genetically infertile male mice have been turned into sperm, and used to produce healthy pups...
One of the two chromosomes (X and Y) that determine the sex of an individual.
Cells from genetically infertile male mice have been turned into sperm, and used to produce healthy pups...
by Ceri Durham
Abnormal results from a non-invasive prenatal test for fetal chromosome abnormality may indicate the presence of previously undetected cancers in some mothers....
The recent news reports that Ammar Zibden, a Palestinian imprisoned in Israel, has managed to smuggle his sperm out of prison and become a father highlight a number of problematic issues...
Men may not be on the brink of extinction after all, according to a study on the evolution of the human Y chromosome. Previous research has suggested that the Y sex chromosome, carried only by men, is decaying genetically at such a rate that men would become extinct in five million years' time...
A test has been developed to determine the sex of a fetus from only five weeks old. The test relies on a blood sample from the mother and therefore carries no risk to the child...
American researchers have for the first time created mice with genetically two male parents. In a three-step process, utilising stem cell technology to create induced pluripotent stem cells (iPS)...
Scientists have successfully grafted human testicle tissue into mice, allowing them to study for the first time how boys' testicles develop in the womb...
New research hints that whether a man has sons or daughters is influenced by his genes. The study, by Mr Correy Gellatly from Newcastle University, was published in the journal Evolutionary Biology last week. Mr Gellatly looked at 927 family trees from Europe and North America, detailing...
by BioNews
As many as a fifth of a woman's eggs are genetically scrambled - but it's not because they can't check their chromosomes, say a team of UK and French scientists. A new study published in the journal Reproduction shows that egg-producing cells in mammals have a mechanism for checking their chromosomes...
by BioNews
Scientists have unveiled a detailed analysis of the human Y chromosome, the genetic material that contains the 'male' switch. When flipped on, this switch (a gene called SRY) makes an early embryo develop into a baby boy. For many years, this was thought to be the Y chromosome's one important...
BioNews, published by the Progress Educational Trust (PET), provides news and comment on genetics, assisted conception, embryo/stem cell research and related areas.