South Korean researchers say a pre-clinical study could raise hopes that stem cells may some day be able to help prevent or treat alzheimer's disease.
The researchers come from seoul national university and r-n-l bio stem cell technology institute.
They say they drastically improved the learning abilities and memory of mice suffering from alzheimers by injecting fat-derived adult stem cells into their veins.
One of the lead researchers say because the stem cells are derived from the animal's own fat, it solves the problem of immune system rejection and eliminates ethical concerns.
They hope to have clinical tests completed within three years.