Study reveals possible early signs of Parkinson’s in the brain

A team of researchers from King’s College London (UK) have uncovered the earliest signs of Parkinson’s disease (PD) in the brain, many years before patients demonstrate any symptoms. The results, which have been published in The Lancet Neurology, challenge the traditional view of the disease and could potentially lead to screening tools for identifying people at greatest risk. This new study provides the first evidence of a central role for serotonin in the very earliest stages of Parkinson’s and suggests that changes to the serotonin system could act as a key early warning signal for the disease. Chief investigator, Marios...