Neural stem cells were used to stimulate the learning and memory abilities of mice engineered to mimic the severe disabilities produced by Alzheimer's and stroke. The researchers at UC Irvine say that rather than develop into replacement tissue, the stem cells apparently secreted neurotrophins, strengthening the connections between neurons and allowing them to continue to function.

"Our research provides clear evidence that stem cells can reverse memory loss," said Frank LaFerla, professor of neurobiology and behavior at UCI. "This gives us hope that stem cells someday could help restore brain function in humans suffering from a wide range of diseases and injuries that impair memory formation."

- read the report [1] in Scientific American

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