"Specific to spinal cord injured patients, immuno-suppressive drugs are not an option in a stem cell transplant procedure because of the increased risk of side effects. Spinal cord injuries cause many individuals to be more susceptible to respiratory infection due to an inability to clear secretions, limited chest movement, and a need for ventilation assistance. In addition, there is a greater risk of bladder infection and sepsis due to chronic catheterization. Some spinal cord patients who incur an infection are further compromised by the infection seeding around the heart. Urinary tract infections and skin breakdowns due to immobility are common causes of dsyreflexia, an event which often triggers heart attacks and strokes. I have been told by Dr. John McDonald of Washington University in St. Louis, that because this immune system of a spinal cord patient is already so compromised, it would be irresponsible to transplant stem cells into an individual that did not match his or her own DNA. Although there is still a risk of rejection, no reputable doctor would prescribe Cyclosporin, the leading immuno-suppressive drug therapy, to a spinal cord injured patient because the risk of death is too great. Somatic cell nuclear transfer could dramatically improve the treatment efficacy of any stem cell transplant because it uses one's own genetic makeup. In addition, there is the potential of eliminating the risks and side effects associated with highly toxic immuno-suppressive agents."