A new study says efforts to produce stem cells by putting human DNA into animal eggs may be futile.
The idea drew harsh criticism in Britain last year, as authorities debated whether to let scientists try it. Animal eggs are considered attractive options because human ones are hard to get for research.
Embryonic stems cells can develop into virtually any cell of the body. By inserting a person's DNA into an egg and growing an embryo, scientists hope to be able to extract stem cells that are a genetic match for that person. Those cells could help disease research and also help develop transplant tissues that avoid rejection.
But the study published today by the journal Cloning and Stem Cells says animal eggs aren't a substitute for human eggs because they don't reprogram human DNA in the right way to generate stem cells. Some scientists dispute the findings, but the study's senior author says instead of turning on the right genes, animal eggs turn them off.
KKTV firmly believes in freedom of speech for all and we are happy to provide this forum for the community to share opinions and facts. We ask that commenters keep it clean, keep it truthful, stay on topic and be responsible. Comments left here do not necessarily represent the viewpoint of KKTV 11 News.
If you believe that any of the comments on our site are inappropriate or offensive, please tell us by clicking “Report Abuse” and answering the questions that follow. We will review any reported comments promptly.powered by Disqus
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.