The so-called isolated REM-sleep behavior disorder is a condition that can provide an indication of Parkinson’s disease well in advance. A research team headed by Professor Dr Erdem Gültekin Tamgüney from Heinrich Heine University Düsseldorf (HHU) has shown that a greater concentration of α-synuclein aggregates can be detected in the stool samples of sufferers. In the scientific journal “npj Parkinson’s disease”, which is published by the NatureSpringer group, they now present a method for detecting these aggregates, which they have developed in collaboration with the University Hospital Cologne, Jülich Research Center (FZJ) and the company attyloid GmbH.