1.   Because most major ailments involve the death of cells, researchers hope that stem cells can cure diseases by replacing damaged tissue.

2.   Cirrhosis is a chronic disease of the liver in which fibrous tissue invades and replaces normal tissue, disrupting important body functions such as digestion and detoxification.

3.   For example, with the proper biochemical coaxing, it can turn into heart muscle, which could replace tissue damaged by a heart attack.

4.   For instance, new heart muscle cells could replace tissue destroyed by a heart attack.

5.   Roberts underwent three operations to remove and replace tissue destroyed by the bacteria.

6.   Some scientists think they could use stem cells to create healthy tissue to replace diseased tissue.

7.   The potential for unprecedented medical miracles by replacing diseased tissue with stem cells is astonishing.

8.   The transplanted cells, which are types of stem cells, migrate to the site of damage and release factors that ameliorate or may even replace dead tissues.

9.   Thurmond said he shared the belief of many scientists that embryonic stem cells could produce a supply of healthy cells to replace damaged tissue.

10.   BMP can speed the healing of fractures, and even allow the body to replace bone tissue.