AUTHOR=Li Puyu , Xu Pingyi , Liu Jun TITLE=Editorial: Biomarkers and Pathogenesis of Alpha-Synuclein in Parkinson's Disease JOURNAL=Frontiers in Aging Neuroscience VOLUME=13 YEAR=2021 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2021.776873 DOI=10.3389/fnagi.2021.776873 ISSN=1663-4365