(March 16, 2012 at 12:17 am)Ziploc Surprise Wrote: Undecieved, researchers like embryonic stem cells because quote: "embryonic stem cells still have the advantage in their ability to differentiate more readily than adult stem cells." >adult stem cells are not easily grown after isolation from mature adult tissues." "Adult stem cells are more likely to have abnormalities from DNA mutations, which can occur due to any number of factors. The 'youth' of embryonic stem cells means that they are less likely to carry mutations and they also regenerate much more quickly than adult stem" cells."http://www.explorestemcells.co.uk/adultvsembryonicstemcells.html
http://www.21stcenturysciencetech.com/ar..._cell.html
"It has been known for about 30 years that stem cells are present in the tissue of the adult, but it was assumed that they could only form cells of a particular tissue. That is, reprogramming them was considered impossible. In recent years, however, pluripotent stem cells were discovered in various human tissues–in the spinal cord, in the brain, in the mesenchyme (connective tissue) of various organs, and in the blood of the umbilical cord. These pluripotent stem cells are capable of forming several cell types–principally blood, muscle, and nerve cells. It has been possible to recognize, select, and develop them to the point that they form mature cell types with the help of growth factors and regulating proteins. This shows that in tissues of the body, adult stem cells possess a much greater potential for differentiation than previously assumed."
In other words, adult stem cells differentiate just fine for the purpose they are given. There is no advantage to doing so "more readily" in lab settings. That's lawyer lingo. Your article says that adult stem cells are more likely to have abnormalities, but what is the whole point of research? To cure the person. Meaning, embryonic stem cells have better turnouts in labs but, according to my article, not in the person who needs the cure: "There are no rejection reactions, because the cells are from the same body." So adult stem cells have been more successful in the real world where it matters.
