David Weldon: “Adult stem cells have been used in over 45 human clinical trials to treat human beings. Embryo stem cells have never…”

“Adult stem cells have been used in over 45 human clinical trials to treat human beings. Embryo stem cells have never been used successfully in any human clinical trial. Indeed, embryo stem cells have not really been used successfully in any animal clinical trial up until recently. There was a study recently published, and I need to give the advocates for embryo stem cell research at least an honest appraisal, there was recently a research article in an animal model of Parkinson's disease, I believe, in rats, where they showed improvement in response to embryo stem cells in that particular case. But hold that up against the tremendous amount of research that has been done with adult stem cells, and hold that up against this recent article that was just published in Nature showing the pluripotency of mesenchymal stem cells derived from adult marrow, suggesting none of the ethical and moral issues associated with embryo stem cells.”