ArticleNPJ Parkinson's disease2025
Phosphorylated α-synuclein in CSF and plasma does not reflect synucleinopathy.
Article in NPJ Parkinson's disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
2 citing papers in PubMed.
- Alpha-Synuclein in Neurodegeneration: From Shared Biology to Disease-Specific Phenotypes.Cells · 2026Review
- Interactions Between Nutraceuticals and α-Synuclein Conformational States: Molecular Mechanisms and Neuroprotective Implications in Parkinson's Disease.International journal of molecular sciences · 2026Review
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
We developed a highly sensitive and specific single-molecule array (Simoa) Homebrew assay for quantification of phosphorylated α-synuclein at serine 129 (pS129 α-syn) and evaluated its performance in human cerebrospinal fluid (CSF) and plasma. Using a cohort of patients with Parkinson's disease (PD), Alzheimer's disease (AD), and neurological controls with available CSF α-synuclein seed amplification assay (synSAA) outcome, we examined pS129 α-syn alongside N-terminal and C-terminal α-syn proteoforms. Our results showed that pS129 α-syn concentration was about 1% and 0.001% of the other α-syn species in CSF and plasma, respectively. We found no correlation between pS129 α-syn and synSAA outcome, indicating that soluble pS129 α-syn in CSF and plasma does not reflect presence of synucleinopathy. Interestingly, pS129 α-syn and other α-syn forms were significantly increased in AD compared to PD and controls, supporting the role of α-syn as biomarker of synaptic degeneration in AD.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.