Prodromal substantia nigra sonography undermines suggested association between substrate accumulation and the risk for GBA-related Parkinson's disease.
David ArkadirT DinurM Becker CohenS Revel-VilkM TiomkinNorbert BrüggemannC CozmaA RolfsA ZimranPublished in: European journal of neurology (2019)
The presence of a marker of prodromal PD (substantia nigra hyperechogenicity) is independent of substrate accumulation in a population with mutated GBA . Although further longitudinal studies are needed to determine the precise predictive value of this marker for GBA -related PD, our findings raise doubts regarding the contribution of substance reduction strategies to PD prevention.