1. 1.Disease: heart, kidney, liver 2.Trauma 3.Environment: x-rays, 2 nd hand smoke 4. Aging 5.Congenital Defects: cleft palate, heart

2. 1.Drug therapy 2.Surgery 3.Transplants “Every 30 seconds, a patient dies from a disease that could be treated with tissue replacement." This shocking observation, presented by Dr. Anthony Atala, Wake Forest School of Medicine, N.C., emphasizes the need for regenerative technology.

3. WIRED SCIENCE | Body Builders Re-gen Revolution  1997- University of Pittsburgh organized first meeting to discuss human tissue regeneration/leaders in the WORLD!  Scientists from all over world attended/still occurs yearly  Main goal: repair damaged tissues, not replace entire organ, but today working on generating new organs