This is not the first time that the battle for stem cell research has occurred in the United States. Those who oppose stem cell research consider issues from an ethical perspective. Stem cells are divided into embryonic stem cells and adult stem cells (epithelial stem cells and hematopoietic stem cells, neural stem cells). Compared with embryonic stem cells, adult human stem cells can only develop into more than 20 tissues and organs, while embryonic stem cells can develop into almost all tissues and organs. However, if stem cells are extracted from the embryo, the embryo will die. Therefore, the ethical and moral issues have become the biggest problem in the research of embryonic stem cells.
Embryonic stem cell research has been a controversial field in the United States. According to public opinion polls, about two-thirds of Americans support stem cell research. The main application field of stem cell research is organ transplantation. Every day, there are a large number of patients in the world who need organ transplants due to diseases, but they die due to lack of organ supply. Stem cell research can induce stem cells in the human body into directional stem cells, and then cultivate into the desired organ tissue for transplantation. This move can save the lives of many patients.
The professor pointed out that European countries are currently open to stem cell research, but this only shows that European countries are considering stem cell research in terms of their contribution to human health. At present, the scientific community is also concerned that stem cell research will have an adverse impact on human evolution. The main manifestation is that embryonic stem cell research has achieved the achievement of cloning animals, which indicates that human cloning will also become possible. This will not only cause social ethical problems, but also may change many characteristics of humans and animals due to technical reasons, causing unpredictable consequences.
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