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Cells unlimited international stem cells

Cells unlimited international stem cells - Science News and Views

Cells unlimited international stem cells - The latest news and publications from Nature, Science, Cell and other journals. Post science topics and your thoughts here. Anything science related goes here.


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Old 01-06-2009, 10:46 AM
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Default Cells unlimited international stem cells



Cells unlimited international

Stem cells


What is the stem cell?

Stem cells are unspecialized cells that can self-renew indefinitely and also differentiates into more mature cells with highly specialized functions.
The application of stem cells offers unprecedented opportunities for developing new medical therapies of many diseases, which were considered as incurable still a few years ago.
There are essentially three sources for stem cells:

1. Embryonic stem cells
2. Stem cells from placental/umbilical cord blood
3. Stem cells from bone marrow (adult stem cells)

1. Embryonic stem cells
Embryonic stem cells are very expensive to harvest and apply in addition there are all kinds of ethical problems around the medical use of embryonic stem cells, as they come from embryos which have been sacrificed for that reason.
There is also malignant degeneration of embryonic stem cells therefore using embryonic stem cells have ethical objections and the application of it got risk.

2. Stem cells from umbilical cord blood
Stem cells from umbilical cord blood can be harvested very easily right after birth. They are best for autologous use, they are stored in a deep frozen state at about -80 degrees C. and eventually used for the newborn, it is also more difficult to apply it to other human beings, they must be matched like any other tissue like organ transplantation so it is so costly and best for autologous use.

3. Stem cells from bone marrow
Stem cells from bone marrow are easily obtained with little discomfort to the patient. They are adult stem cells and can be applied for autologous and heterologous use. The autologous use is completely safe and cannot be rejected by the immune system. For heterologous use, the cells must be matched for compatibility, like in case of any organ transplantation. The risk of malignant degeneration in case of adult stem cells seems to be extremely low and likely non-existing.

Therefore cells unlimited uses only adult stem cells for autologous use for regenerative medicine (tissue repair) and anti-aging because it is the most secure and comfortable mean in treatment by stem cells.
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