What is stem cell research?
stem cell research is a relatively new technology that takes primitive human cells and develops them into most 220 varieties of cells in the human body, including blood cells and brain cells. Some scientists and scientists have great hope for this research and its ability to detect treatment and perhaps even treat some of the worst diseases, including heart disease, diabetes and neurodegenerative diseases such as Alzheimer and Parkinson. Along with these promising possibilities, the research of stem cells is evoked by fear of cloning human and serious concerns about the ethics of scientific research, which involves the destruction of human embryos.
types of stem cells
Human stem cells come mainly from embryos or tissue of adults. Embryonic stem cells can only be created for stem cell research or may be the rest of other processes, such as in-improving (IVF). Fertility Treatment usually by the result of the need to create multiple embryos and because only those are selected for implantationThe strongest, some embryos are not used. These other embryos may be discarded, donated to others who seek help with fertility, preserved or donated for research; Most often, the residues of the embryos are discarded.
Adult stem cells can be harvested from adult tissue with less, if at all, they damage adults. However, embryonic stem cells are reported that they are generally easier to extract than adult stem cells, and allegedly embryonic stem cells are more used than their adult counterparts. Most of the debates on stem cell research focus on embryonic stem cells because of their potential use and for questions when life begins.
ethical problems
The overall debate on the ethics of stem cell research includes two main ethical concerns: (1) The potential for cloning human man and (2) the Embrya or Pre-Embryos as some refer to them are human life. MayThe initial discussion is related to the possibility of cloning human. Especially when she first gained popularity, scientists dealt with the potential to use stem cells to clon people. Proponents report many arguments to support the cloning of a human person, including the possibility of creating another "you" should later be needed in the life of a part of the body or tissue, because one can develop illnesses and illnesses. Opponents primarily argue that it is not in the judgment of man to produce, manipulate or destroy human life.
Another main ethical problem related to stem cell research includes an ongoing debate about when life begins. Some say that life begins to conceive and that the use of people, even immature, is unethical for research purposes. Others argue that embryos are only a small amount of undifferentiated tissue and because they are already planned to destruction and have great potential advantage, they should be used to potentially help others.
Legal differences
It is legal to conduct a tribal researchCH cells in the United States, even for the purposes of cloning human human. In 2001, President Bush allowed the release of Federal Funds to research more than 60 existing stem cell lines. Financing was limited to these cell lines because it has already been decided on the question of life and death; This means that the cell lines of the trunk at this point were capable of independent and endless regeneration. In 2009, President Obama turned this policy and allowed the use of federal financing to other stem cell lines.
Other countries allow stem cell research to varying degrees. Countries such as Japan, Sweden and the United Kingdom have made it legal, even for human cloning purposes. The country, including Australia, Canada and France, enable adults and residual embryonic research, but not human cloning. Austria, Ireland and Poland have some of the most restrictive laws on this type of research.