The June 2023 replay of past episodes showcases a selection of interviews regarding the biomarker discovery in Parkinson disease. This episode begins with an overview of the latest in Parkinson’s research, including biomarker development with Dr. Bas Bloom. The episode continues with an interview with Dr. Lucilla Parnetti about the clinical application of α-synuclein seed amplification, leading into an interview with Prof. Andrew Siderowf about seed amplification in PD in the PPMI cohort. The June Neurology Recall concludes with an interview with Dr. Christopher Gibbons on skin α-synuclein in MSA and PD.   Related Links: Research in Movement Disorders in 2022: A New Era of Biomarker and Treatment Development: https://www.thelancet.com/journals/laneur/article/PIIS1474-4422(22)00494-X/fulltex Podcast Link: https://directory.libsyn.com/episode/index/id/26775207 α-Synuclein Seed Amplification Assays for Diagnosing Synucleinopathies: The Way Forward: https://n.neurology.org/content/99/5/195  Podcast Link: https://directory.libsyn.com/episode/index/id/23923047 Assessment of Heterogeneity Among Participants in the Parkinson's Progression Markers Initiative Cohort Using α-Synuclein Seed Amplification: A Cross-Sectional Study: https://www.thelancet.com/journals/laneur/article/PIIS1474-4422(23)00109-6/fulltext Podcast Link: https://directory.libsyn.com/episode/index/id/26961315  Cutaneous α-Synuclein Signatures in Patients With Multiple System Atrophy and Parkinson Disease: https://n.neurology.org/content/100/15/e1529 Podcast Link: https://directory.libsyn.com/episode/index/id/26499948   For links to articles and previous podcast episodes, please visit NPUb.org/Podcast.