Value of cerebrospinal fluid α-synuclein species as biomarker in Parkinson’s diagnosis and prognosis

Written by Lucilla Parnetti, Claudia Cicognola, Paolo Eusebi & Davide Chiasserini

Since diagnosis of Parkinson’s disease (PD) is mostly based on clinical criteria, it is almost impossible to formulate an early diagnosis, as well as a timely differential diagnosis versus other parkinsonisms. A great effort in searching reliable biomarkers both for early diagnosis and prognosis in PD is currently ongoing. Cerebrospinal fluid has been widely investigated as potential source for such biomarkers, with particular emphasis on α-synuclein (α-syn) species. We reviewed all the clinical studies carried out so far on cerebrospinal fluid quantification of α-syn species in PD. Current evidence supports the value of total and oligomeric α-syn in PD diagnosis...

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