Human embryonic stem cells must be clinic leftovers
* Batches already in existence may be reviewed
* NIH says rules reflect broad public support (Adds reaction from Republican opponent, paragraph 9)
WASHINGTON, July 6 (Reuters) – The U.S. government released new rules on Monday governing federally funded research on human embryonic stem cells, loosening some ethical requirements that [...]

HONG KONG (Reuters) – Chinese researchers have managed to create powerful stem cells from mouse skin and used these to generate fertile live mouse pups.

They used induced pluripotent skin cells, or iPS cells — cells that have been reprogrammed to look and act like embryonic stem cells. Embryonic stem cells, taken from days-old embryos, have [...]