Have a read about stem cells from the skin which develops into Alzheimer's.
http://www.cam.ac.uk/research/news/downs-syndrome-stem-cells-used-to-model-alzheimers/
The cells are from Downs Syndrome Donors.
http://www.cam.ac.uk/research/news/downs-syndrome-stem-cells-used-to-model-alzheimers/
The cells are from Downs Syndrome Donors.