期刊
NEUROLOGY
卷 101, 期 14, 页码 595-596出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/WNL.0000000000207724
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The biological definition of Parkinson's disease is still uncertain. Recent advances in fluid biomarkers have been made, but there are limitations in accurately capturing the multiple biological features of the disease.
The biological definition of Parkinson disease (PD) is still an open issue. Indeed, PD represents a heterogeneous disorder in which clinical symptoms may correspond to different biological substrates. In vivo biological characterization of PD is of great importance, to formulate an accurate diagnosis in the early stages of the disease, when clinical symptoms may be uncertain and disease-modifying therapies may have the greatest chance to halt disease progression. In recent years, several advances have been made in the field of fluid biomarkers. Among these, alpha-synuclein amplification assays (alpha S-SAAs) in CSF can detect the presence of alpha-synucleinopathy, the most widely recognized biological feature of PD.(1,2) However, alpha S-SAAs are not yet quantitative, the extracted kinetic features poorly associate with clinical scores, and they do not capture alterations other than alpha-synucleinopathy that occur in patients with PD (e.g., neuro-inflammation, synaptic damage, mitochondrial and autophagic dysfunctions). Moreover, some genetic forms of PD, such as LRKK2-PD, may not be characterized by alpha-synucleinopathy, and this may explain alpha S-SAA's poor sensitivity.(2)
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