What has stem cell research accomplished?
Bone marrow transplants have been performed for decades and involve the infusion of adult stem cells. Research based on embryonic and adult stem cells has yielded promising results for the treatment of Parkinson’s disease and diabetes Stem cell research also has generated new knowledge about basic cell mechanisms that is critical to understanding the causes of disease, such as cancer. Some have criticized embryonic stem cell research by arguing that adult stem cells have delivered more treatments, but that observation is misleading. While adult stem cells have been studied for decades, human embryonic stem cells were first isolated in 1998. There has not yet been time to develop new therapies using embryonic stem cells. The overwhelming majority of stem cell scientists believe that to make the most rapid progress against disease, researchers must use all the weapons in their arsenal. That means using both embryonic and adult stem cells.