Studies on mice have shown promise that stem cells can be used to repair diseases in mammals. While no clinical trials of embryonic stem cells have occurred in the United States, scientists are convinced that some of the most debilitating and degenerative diseases are too complex to be effectively treated with pharmaceuticals or even gene therapy. Living cells work better because they produce a much greater number of 'biologically active molecules,' (Rennie, & Barber, 2005, p. A8). However, if scientists one day achieve their goal, the kind of cell transplantation occurring in experiments with mice might be successful in humans, promising potential cures for brain disease, diabetes, cancer and other illnesses and conditions.
Christine Soares maintains that adult stem cells avoid the ethical dilemma of embryonic ones but argues their ' practical clinical value is far more murky,' (Rennie, & Barber, 2005, p. A12). From changing muscle into bone to regenerating organs represent some of the potential possibilities scientists see for stem cell research. However, adult neural stem cells are present which suggest they should replace damaged tissues but they are not as effective as embryonic stem cells. However, as Soares makes clear, 'ongoing investigations' of both types of cells needs to be a focus of researchers, (Rennie, & Barber, 2005, p. A15).
Richard Gardner and Tim Watson primarily cover the legalities of stem cell research and cloning at the present time. More properly, they investigate the lack of 'consensus' around the world about what should be 'allowed' pertaining to stem cell research, (Rennie, & Barber, 2005, p. A17). Though the Bush Administration has placed limits on stem cell research, other nations have not. Despite several efforts to reach an agreement internationally, such an agreement remains elusive due to a number of factors from religious and moral aspects of the issue to rules regulating stem cell resea...
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