When the baby is born, and the umbilical cord is separated, the blood can accumulate. The segment cord is still in connection with the placenta. Stem cells from the blood of the remaining placenta and umbilical cord are known as " umbilical cord blood cells (UCB) ." This blood, which is of no use to the child or the mother, and has taken notice as a medical desecration for centuries, is one of the primary sources of stem cells. UCB stem cells are unique and have promising applications for the future. How are cells in the allogeneic system immature, causing a weakened donor-derived immune response, and therefore lower in GVHD incidence than other sources of bone marrow stem cells (or peripheral cells)? The collection method is risk-free and straightforward for the donor (child or mother). Nothing like the development of stem cells, these are not ethically controversial. Despite many advantages, umbilical cord stem cells have some limitations. It req...

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