an over view of the embryonic stem cell therapies in use?
The controversy isn't over stem cell therapy, it is over embrionic stem cell therapy. Stem cell therapy usually refers to stem cells extracted from the patients own body. Embrionic stem cells are extracted from dead fetuses. Those opposed to embrionic stem cell therapies are worried that it will lead to 'fetus farms', where eggs are fertilized until a fetus is formed, then the fetus is killed to harvest the stem cells. It is an offshoot of the abortion controversy in which the pro-life side largely believes that life begins at conception (egg fertilization). The controversy around stem cell therapy lies in the research in embryonic stem cells. Some people believe that the start of the embryonic stage is when a human being begins and is therefore unethical to destroy this for the stem cells as it is supposedly akin to murder.
Cell therapy is, in effect, a type of organ transplant which has also been referred to as "live cell therapy," "xenotransplant therapy," "cellular suspensions," "glandular therapy," or "fresh cell therapy.
Differentiation
An embryonic stem cell potentially can develop into ANY cell in the body theoretically without limit to replenish, and an adult stem cell is only able to mature into a specialised tissue cell from which tissue the cell is positioned.
US
Embryonic stem cells that are pluripotent can develop into any type of cell.
The controversy isn't over stem cell therapy, it is over embrionic stem cell therapy. Stem cell therapy usually refers to stem cells extracted from the patients own body. Embrionic stem cells are extracted from dead fetuses. Those opposed to embrionic stem cell therapies are worried that it will lead to 'fetus farms', where eggs are fertilized until a fetus is formed, then the fetus is killed to harvest the stem cells. It is an offshoot of the abortion controversy in which the pro-life side largely believes that life begins at conception (egg fertilization). The controversy around stem cell therapy lies in the research in embryonic stem cells. Some people believe that the start of the embryonic stage is when a human being begins and is therefore unethical to destroy this for the stem cells as it is supposedly akin to murder.
The embryonic stage in which cell migration and differentiation occurs is known as a gastrula.
Cell therapy is, in effect, a type of organ transplant which has also been referred to as "live cell therapy," "xenotransplant therapy," "cellular suspensions," "glandular therapy," or "fresh cell therapy.
stem cell therapy of arthritis
Embryonic stem cells; they are totipotent.
egg cell
erythroblast
Cell Therapy was created on 1995-10-02.
Differentiation
Unipotent
An embryonic stem cell potentially can develop into ANY cell in the body theoretically without limit to replenish, and an adult stem cell is only able to mature into a specialised tissue cell from which tissue the cell is positioned.