TY - JOUR TI - Elevated Serum α-Synuclein Levels in Huntington's Disease Patients AU - Breza, M. AU - Emmanouilidou, E. AU - Leandrou, E. AU - Kartanou, C. AU - Bougea, A. AU - Panas, M. AU - Stefanis, L. AU - Karadima, G. AU - Vekrellis, K. AU - Koutsis, G. JO - Translational Neuroscience PY - 2020 VL - 431 TODO - null SP - 34-39 PB - Elsevier Ireland Ltd SN - null TODO - 10.1016/j.neuroscience.2020.01.037 TODO - alpha synuclein; dopamine receptor blocking agent; serotonin noradrenalin reuptake inhibitor; serotonin uptake inhibitor; tetrabenazine; alpha synuclein, adult; Article; CAG repeat; clinical article; controlled study; disease burden; disease duration; enzyme linked immunosorbent assay; female; human; Huntington chorea; male; priority journal; protein blood level; Unified Huntington Disease Rating Scale; Huntington chorea; Parkinson disease, alpha-Synuclein; Humans; Huntington Disease; Parkinson Disease TODO - Recent evidence suggests a potential role for mixed proteinopathies in the development of clinical manifestations in patients with Huntington's disease (HD). A possible cross-talk between mutant huntingtin and α-synuclein aggregates has been postulated. Serum α-synuclein has been evaluated as a potential biomarker in patients with Parkinson's disease (PD). We presently sought to investigate serum α-synuclein levels in 38 HD patients (34 symptomatic and 4 premanifest) and compare them to 36 controls. We found that α-synuclein was elevated in HD patients vs. controls (2.49 ± 1.47 vs. 1.40 ± 1.16, p = 0.001). There was no difference in α-synuclein levels between symptomatic vs. premanifest HD, nor between HD patients receiving medication vs. treatment-naïve. Furthermore, α-synuclein levels showed no correlation with CAG2, Unified HD Rating Scale (UHDRS) motor score, age, disease duration or disease burden score. Our results provide evidence for elevated serum α-synuclein in HD and lend support to further investigating the role of α-synuclein in this disorder. © 2020 IBRO ER -