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STEM CELLS: HAS SCIENCE GONE TOO FAR?

                            STEM CELLS: HAS SCIENCE GONE TOO FAR? Advances in stem cell research have led some to predict cures for a host of illnesses. But not everyone shares the excitement. Why is there so much controversy surrounding stem cells? “The stem cell debate has led scientists and nonscientists alike to contemplate profound issues, such as who we are and makes us human beings”                                  MEDICAL MARVEL, ETHICAL MINEFIELD   Kris has Type 1 diabetes. Her diseased pancreas no longer produces insulin. Now imagine if Kris could go to a doctor and have new cells, specially cultured in a laboratory, transplanted into her body to replace damaged pancreatic cells. As these new cells became functional, Kris could gradually discontinue insulin therapy and return to normal health. Until recent times potential cures would have sounded like science fiction, but now some researchers believe that they are a possibility. Why so? Because in

REGENERATIVE MEDICINE: PANACEA TO ALL DISEASES

           Dolly the sheep was the first mammal cloned from an adult cell. Scientists implanted the nucleus of a cell from the mammary gland of an adult sheep into an enucleated egg cell.              According to a report prepared by the National Institutes of Health in the United States, stem cells may hold the key to replacing cells lost in many devastating diseases. These include, Parkinson’s disease, end-stage kidney disease, liver failure, and cancer, to name just a few. Stem cells can also give rise to blood, and they may even make blood banks obsolete, it is claimed. In fact, doctors have been using stem cells for many years to treat certain blood disorders. These treatments have usually involved transplantation of bone marrow, which is rich in blood-forming stem cells, but now doctors prefers to harvest stem cells taken from circulating blood. Because stem-cell therapies hold promise of regenerating healthy new tissues, they come under the general designation “regene