Why are stem cells used in medical research?
Stem cells may be the key to a new generation of treatments for many diseases. Embryonic stem cells could be used to create new tissue or organs for patients awaiting a transplant. They could also be used to repair malfunctioning cells in the body. For example, stem cells could be used to repair neurological cells in patients with Alzheimer’s or Parkinson’s, or to create new bone marrow for people suffering from leukemia.