| dc.description.abstract | In the society contemporary, the human being, with all the will to know and control, using the science and the reason, develop methods that permitt amazings scientific and biotecnology advances, as the cases of research and terapies with embryonic stem cells. The using of therapeutical cloning and of excesses embryos produced through tecniques of fertilization in vitro makes the problematic of the human life beginning shows up, as well as contradictions about the risks and benefits of the therapy. Among risks and insures ahead of the new rights, the bioethics configures itself on a system based on the critical reflection and on the search for ways ethicly sustainable. Trying to reduce risks using embryonic stem cells on therapies, the ethic responsability and the human dignity principles build the bedding of the bioethics thoughts and, starting point to formulate the legal limits that, on its turn, permeate the present decisions and the future possibilities | en |
