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Abstract
While organ transplants have helped victims of liver, they are accompanied by numerous problems. As the demand is far greater than the supply, not enough organs are available for patients in need and patients die while waiting. In addition, after transplants, the body often recognizes new organs as foreign objects, so it may rejects and destroys them. To counter this, patients receive immuno-suppressive medication, rendering their bodies susceptible to bacteria, viruses and cancer. Also they extremely suffer from heavy costs for the remainder of their lives. US Medical Experts say: “Embryonic Stem Cells provide an ideal solution for the problems associated with transplantation. They will allow for almost unlimited organ regeneration”. According to US Health Department statistics over 5,000 severely ill patients die each year while awaiting an organ transplant. There simply are not sufficient organs donated to fill the need (David et al., 2003).
Isolation of human stem cells offers the promise of a remarkable array of novel therapeutics. Biologic therapies derived from such cells, through tissue regeneration and repair as well as through the targeted delivery of genetic material, are expected to be effective in the treatment of a wide range of medical conditions. Efforts to analyze and assess the safety of using human stem cells in the clinical setting are vitally important to this endeavor (Fox et al., 1998).