Japanese researchers said Friday they have transplanted stem cells into the brain of a patient in the first stage of an innovative trial to cure Parkinson’s disease. The research team at Kyoto University injected induced Pluripotent Stem (iPS) cells — which have the potential to develop into any cell in the body — into the brain of a male patient in his fifties, the university said in a press release. The man was stable after the operation, which was performed last month, and he will now be monitored for two years, the university added. The researchers injected 2.4 million iPS...