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Stem Cells : A Type Of Cell

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Stem cells is a type of cell that can differentiate (alter, transform) and form different tissues in the body. This is a special capacity because the other cells can generally only be part of a specific tissue (for example skin cells can only constitute skin). Another special ability of stem cells is self-replication, which means that they can produce identical copies of themselves.
Because of these two abilities, stem cells are the subject of intense research today, it could in future act as replacement cells in injured or diseased tissues, as in cases of Alzheimer, Parkinson and neuromuscular diseases in general, or replace cells that the body stops producing for some deficiency, as in the case of diabetes.
Adult stem cells are present in bone marrow, blood, liver, umbilical cord and so on. Scientists still tries to preview what kind of adult cell, a specific stem cell will become. It is known of its replication capability, but it is unknown what their limitations as transplants and for genetic diseases. In other words, it will take longer research efforts and long-term investments until an effective therapy with these cells present results. But when it comes to scientific research, any new fact, any new discovery can completely alter the current situation, and many steps can be overcome in a short time.
On the other side, embryonic stem cells, can turn into any human tissue (cell), but researches with those type of cells happens only in countries that allow this type of

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