July 1, 2022

IN BRIEF: Parkinson’s; assisted suicide; cosmetic surgery; apology

PARKINSON’S: Monkeys with Parkinson’s symptoms have been helped by injections of stem cells from human foetuses, researchers at the Harvard Institutes of Medicine in Boston say. Writing in the Proceedings of the National Academy of Sciences, they say that the implanted cells worked to protect brain cells against further damage. However, after four months, the symptoms began to return, possibly because the human tissue was being rejected.