Check this out, from this article.
“Even as the future of embryonic stem cells has dimmed, adult stem cell research has scored major wins evident just in the past few months. These advances involve human stem cells that are not derived from human embryos. In fact, adult stem cells, which occur in small quantities in organs throughout the body for natural growth and repair, have become stars despite great skepticism early on. Though this is a more difficult task, scientists have learned to coax them to mature into many cell types, like brain and heart cells, in the laboratory. (Such stem cells can be removed almost as easily as drawing a unit of blood, and they have been used successfully for years in bone marrow transplants.)
To date, most of the stem cell triumphs that the public hears about involve the infusion of adult stem cells. We’ve just recently seen separate research reports of patients with spinal cord injury and multiple sclerosis benefiting from adult stem cell therapy. These cells have the advantage of being the patient’s natural own, and the worst they seem to do after infusion is die off without bringing the hoped-for benefit. They do not have the awesome but dangerous quality of eternal life characteristic of embryonic stem cells.”
