Tag Archives: embryonic stem cell

Stem Cells Created from Adults’ Cells

For the first time, researchers have successfullycreated stem cells from the skin cells of adults. This is considered the first step in developing patient-specific cells lines to treat diseases like heart failure, Parkinson’s, multiple sclerosis, and vision loss, but it is also the first step inhuman reproductive cloning, an issue fraught with ethical dilemmas. To create the stem cells, researchers fused a grown skin cell with an ovum whose DNA had been removed. The resulting embryo contains an inner lining of pluripotent stem cells. Of 39 attempts to create stem cells from adult cells, the researchers succeeded only once for each of their two skin cell donors. More… Discuss

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Amniotic Fluid Promising Source of Stem Cells

Stem cells are undifferentiated cells that retain the ability to develop into any one of numerous cell types, and they therefore hold the key to promising new medical treatments. Yet, research into their use has been somewhat limited due to the controversy surrounding the harvesting of the most flexible type of stem cell, the embryonic stem cell. Stem cells collected from amniotic fluid, however, do not raise such ethical concerns and could be a useful alternative. Researchers have been able to make these cells pluripotent, or nearly fully flexible, by adding a chemical that modifies the configuration of their DNA without introducing new genes to the cells. More… Discuss