More info on stem cells. I wish they would undertake clinical trials if they are so confident in their analysis.
http://www.nature.com/aps/journal/vaop/ncurrent/full/aps2012107a.html
Stem cell-based therapies for the treatment of stroke have received
considerable attention. Two broad approaches to stem cell-based
therapies have been taken: the transplantation of exogenous stem cells,
and the activation of endogenous neural stem and progenitor cells
(together termed neural precursors). Studies examining the
transplantation of exogenous cells have demonstrated that neural stem
and progenitor cells lead to the most clinically promising results.
Endogenous activation of neural precursors has also been explored based
on the fact that resident precursor cells have the inherent capacity to
proliferate, migrate and differentiate into mature neurons in the
uninjured adult brain. Studies have revealed that these neural precursor
cell behaviours can be activated following stroke, whereby neural
precursors will expand in number, migrate to the infarct site and
differentiate into neurons. However, this innate response is
insufficient to lead to functional recovery, making it necessary to
enhance the activation of endogenous precursors to promote tissue repair
and functional recovery. Herein we will discuss the current state of
the stem cell-based approaches with a focus on endogenous repair to
treat the stroke injured brain.
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