stem cell research…

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a stem cell, "generic" cell, make exact copies of indefinitely, a stem cell has the ability to produce specialized cells, various tissues, heart muscle, brain tissue, liver tissue, scientists, able to maintain stem cells forever, developing them into specialized cells, two basic types, embryonic stem cells, obtained from either aborted fetuses, fertilized eggs, left over from in vitro fertilization, ivf, medical, research purposes, produce cells, every tissue, adult stem cells, versatile, research purposes, specific to certain cell types, blood, intestines, skin, muscle, term "adult stem cell" misleading, children, adults have them, in august 2001, president george w, bush approved limited federal funding, stem cell research, stem cell research has the potential, major medical advances, cures, stem cell research is controversial, potential uses, stem cells, many areas in medicine where stem cell research could have a significant impact, a variety of diseases, injuries, a patient's cells, tissues, destroyed, must be replaced by tissue, organ transplants, stem cells able to generate brand new tissue in these cases, cure diseases, which currently, no adequate therapy, diseases that could see revolutionary advances include alzheimer's, parkinson's disease, diabetes, spinal cord injury, heart disease, stroke, arthritis, cancer, burns, stem cells could also be, gain a better understanding of how genetics work, in the early stages of cell development, help scientists understand why some cells develop abnormally, lead to medical problems birth defects, cancer, by understanding the genetic basis, cell development, scientists, learn how, prevent some of these diseases, stem cells useful, in the testing, development of drugs, stem cells, create unlimited amounts of specialized tissue, heart tissue, to test how drugs react on these specialized tissues, trying the drugs on animals, human subjects, drugs could be tested, effectiveness, side effects more rapidly, controversy, stem cell research, use of embryonic stem cells is controversial, controversy, the belief by opponents that a fertilized egg is fundamentally a human, rights, interests that need to be protected, who oppose stem cell research, not want fetuses, fertilized eggs used, research purposes, supporters of stem cell research argue that the fertilized eggs, donated, consent from each couple, would be discarded anyway, no potential, fertilized eggs to, become human beings, fertilized eggs, at this time, created specifically, stem cell research, moral, ethical issue, controversy surrounding stem cell research, likely continue, quite some time, supporters believe that an aggressive federal program is needed, the potential of stem cell research, realized, at this time, federal funding is limited to stem cell lines that already exist, funding, does not support further destruction of fertilized eggs, the idea that the "life, death" decision on the existing stem cell lines has already been made, a compromise has been made that supports medical research, respects the fundamental moral issues associated, the potential, life.