Mpho Innocentia Morajane- 9W
The usage of embryonic stem cells to help people. Research some of these current ideas and discuss the value of this type of research.
Stem cells are cells that have the potential to develop into many different or specialized cell types. Stem cells can be thought of as primitive, “unspecialized” cells that are able to divide and become specialized cells of the body such as liver cells, muscle cells, blood cells, and other cells with specific functions. Stem cells could help medicine in three general ways: cell-based therapies, drug discovery and basic knowledge about disease. Cell therapies would use stem cells, or cells grown from stem cells, to replace or rejuvenate damaged tissue. Scientists also want to use stem cells to understand disease and find drugs that might treat it. Embryonic stem cells could be used to make more specialized tissues that have been lost to disease and injury. For tissues that are constantly replaced, like blood and skin, stem cells would probably be replaced directly. Researchers are also exploring ways to use stem cells to treat diabetes, Parkinson’s disease, spinal cord injury, heart disease and vision and hearing loss, among others. During the early stages of embryonic development( is the process by which the embryo forms and develops) the cells remain relatively undifferentiated (immature) and appear to possess the ability to become, or differentiate, into almost any tissue within the body. For example, cells taken from one section of an embryo that might have become part of the eye can be transferred into another section of the embryo and could develop into blood, muscle, nerve, or liver cells. Some current therapies, such as bone marrow transplantation, already make use of stem cells and their potential for regeneration of damaged tissues. Other therapies that are under investigation involve transplanting stem cells into a damaged body part and directing them to grow and differentiate into healthy tissue. The stem cell-research is an example of the, sometimes difficult, cost-benefit analysis in ethics which scientists need to do. Even though many issues regarding the ethics of stem cell research have now been solved, it serves as a valuable example of ethical cost-benefit analysis.