In fact these cells are destined to become any one of more than 200 different types of tissue cells in the body, such as muscle cells, blood cells, nerve cells and even new teeth.
Science and technology has developed so much that in the recent years scientists hope to use these cells to develop new tissues, treatments and potentially even organs for transplanting into a patient. First and foremost argument made by the scientific community is that human stem cell research is said to promise new life changing treatments and possible cures for many devastating diseases and injuries, such as Parkinson's disease, diabetes, heart disease, multiple sclerosis, burns and spinal cord injuries (Young 2-16).
There are a number of sources for obtaining human stem cells. The first is IVF (In Vitro Fertilization) treatment, where surplus embryos (and unfertilized eggs for creating embryos) are donated for research with the consent of the donor rather than being destroyed following treatment. The second source is aborted tissues, which are used as stem cells taken from the aborted fetus. Another is umbilical cord blood, rich in stem cells. These cells are harvested following the baby's birth.
The most controversial is perhaps therapeutic cloning, where cells are created for research that i ...