Scientists say cloned embryonic stem cells used to treat Parkinson's disease in mice, work better than other cells.Researchers say they took cells from the tails of mice, transferred the nuclei from them into hollowed-out mouse egg cells, and made clones of the mice.
After a few days, those cloned embryos were harvested for their stem cells.
Researchers grew the cells and coaxed them into becoming the brain cells lost in Parkinson's disease.
When they put those cells into the brains of the mice, they say the mice got better.
The study is in the Journal of Nature Medicine.
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