![]() But the real highlight is the stem cells’ amazing ability to differentiate into any type of cells. The very discovery of how stem cells are extracted from human embryos is in itself a medical breakthrough with such promise. Ever since the use of stem cells was discovered in 1998, moral ethical questions have doggedly followed it through the years. This shows that the real concern of opponents of stem cell research is the ethics behind the process that can be likened to abortion. Adult stem cells, on the other hand, are undifferentiated cells that are found throughout the body and multiply by cell division so they can help replenish dead cells and repair damaged tissues, which is why there are less controversial than the embryonic kind. As previously mentioned, embryonic stem cells are derived from human embryos. Two of the most popular are embryonic and adult stem cells that are distinguished by the way stem cells are harvested. There a different stem cells used for research. Some of these eggs where originally created for reproductive purposes, but when they are no longer needed for the intended purpose they are donated for research. ![]() It starts with the eggs developed from fertilized in-vitro that are donated for the purpose of research. In stem cell research, human embryos are created, used and then destroyed, depending on whether or not they have served their purpose. The controversy stems from the consideration of ethics, revolving around the research process of embryonic stem cells that, simply put, involves creating and killing a human life. The use of stem cells to treat injury or disorders by introducing healthy cells to damaged tissues has been considered a medical breakthrough, what with the possibilities of it treating a wide range of disease, including those where treatments have yet to be discovered.
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