Research on prodromal symptoms of Parkinson’s disease (PD), including olfactory impairment and RBD, helps dissect disease etiology in this open access review by Honglei Chen in: J. Parkinsons Dis., Vol 8:1, 2018.

Exosome signaling in Parkinson’s disease pathobiology. Exosomes generated within the multivesicular bodies of the endosomal-lysosomal pathway are the focus of this review by Georg K. Tofaris, openly available in: J. Parkinsons Dis., Vol 7:4, 2017.

Voxelwise DTI analysis of PD patients compared to healthy controls. Olfactory Impairment in Parkinson’s Disease Studied with Diffusion Tensor and Magnetization Transfer Imaging by Georgiopoulosa et al., J. Parkinsons Dis., Vol 7:2, 2017.

Mutations in the VPS35 gene encoding a core component of the retromer complex, have recently emerged as a new cause of late-onset, autosomal dominant familial Parkinson’s disease. This review provides a critical discussion of the emerging data: Williams et al., J. Parkinsons Dis., Vol 7:2, 2017.

Keep up with funding for Parkinson's disease research around the globe with the Parkinson's Disease Funding Analyzer (PDFA). The PDFA showcases funding distribution from 40 countries and allows line-of-investigation queries to look for trends and investigators.

Key breakthroughs that shaped PD research over the last 200 years are covered in this special supplement of JPD, freely available by clicking the image on the right or visiting the following link: JPD 7:s1