送交者: trus 于 2008-05-07, 14:38:36:
Stem cells where so wonderful? We all know that we hundred-dollar initial body is in fact only parents of a manufacturing cell -- a sperm into an egg fertilized eggs from it. After two cells into one cell, two into four, four become eight, as these cells with the genetic blueprint for the same password, in the eyes of the local component to differentiate into all the cells of the eyes, the long arm of arms components to differentiate into all the cell. When a complete human form, his body comprising most of the cells do not have the ability to divide.
As long as there is capacity to differentiate into other types of cells, known as stem cells. A zygote is the most primitive stem cells. The integrity of the human form, some of which cells still have the ability to divide, such as hematopoietic stem cells, can differentiate into red blood cells, interleukin other kinds of blood cells to grow into the entire blood system.
Scientists can control embryonic stem cell differentiation process, we can create different cells to replace many patients necrosis of the cells, for example, for people with diabetes to create pancreas cells for Parkinson's patients to create brain cells, many incurable diseases can be solved.