A team of researchers at the University of Kyoto (Japan) has shown that dopamine neurons grown from human skin grow in the brains of great apes with Parkinson’s disease after transplantation and that their Parkinson’s symptoms are sustainably eased or largely removed.
No negative effects arose during the two-year observation period, and in particular there were no tumour growths from the transplanted cells.
This clears the path for tests of this therapy on humans.
Source: 
Original article by the researchers

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