(CBS) This week, British researchers announced another extraordinary breakthrough in medical research. They have taken stem cells from an embryo and created human sperm.
It’s very exciting, said the man who led the team. They have heads, they have tails, and they move. They have all the essential qualities for creating life. The aim, we are told, is to revolutionize the treatment of infertility.
But this discovery has created some interesting dilemmas. Sperm could be produced from female stem cells. That would mean women would no longer need men to create babies. It could also be theoretically used to produce
An international team of scientists led by researchers at The Scripps Research Institute has developed a straightforward technique to determine the ethnic origin of stem cells.
The team’s analysis of a variety of human embryonic stem cell lines currently in use in research laboratories around the world found that these cells originated largely from Caucasian and East Asian populations, with little representation from populations originating in Africa. In response to these results, the scientists used skin cells from an individual of West African Yoruba heritage to create a new stem cell line, the first to carry the genetic profile of
Patents offer the economic guarantees scientists and companies need to develop new treatments, Oliver Bruestle told Deutsche Welle. He’s at the center of a German court battle surrounding embryonic stem cell research
Oliver Bruestle, director of the Institute of Reconstructive Neurobiology at the University of Bonn, is pushing for Germany to recognize the right to patent procedures conducted on embryonic stem cells, saying patents are the right way to ensure that scientists and companies profit from their work.
Greenpeace, however, is opposed to the patents. The organization filed suit against a patent granted to Bruestle in 1999, saying that the patenting
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The great promise of induced pluripotent stem cells is that the all-purpose cells seem capable of performing all the same tricks as embryonic stem cells, but without the controversy.
However, a new study published this week (Feb. 15) in the Proceedings of the National Academy of Sciences comparing the ability of induced cells and embryonic cells to morph into the cells of the brain has found that induced cells — even those free of the genetic factors used to program their all-purpose qualities — differentiate less efficiently and faithfully than their embryonic counterparts.
The finding that induced cells are
A year after President Barack Obama issued a landmark executive order to remove eight years of limitations on U.S. federal funding of stem cell research, the WiCell Research Institute has expanded the number of cell lines available through its WISC Bank (Wisconsin International Stem Cell) to 33.
WiCell, host of the former National Stem Cell Bank (NSCB) for five years under a contract from the National Institutes of Health (NIH), has transitioned the distribution of all of the 20 human embryonic stem cell (hESC) lines formerly available through the NSCB to its own stem cell bank. The bank also continues