ArticleNPJ Parkinson's disease2021
Neurofilament light chain and α-synuclein RT-QuIC as differential diagnostic biomarkers in parkinsonisms and related syndromes.
Article in NPJ Parkinson's disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 3 of them syntheses that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
79 citing papers in PubMed, 3 syntheses or guidelines pooled it, 114 citations in OpenAlex.
- Cerebrospinal fluid biomarkers for diagnosis of Parkinson's disease: a systematic review and network meta-analysis.Journal of neurology · 2025Pooled it
- Cerebrospinal fluid and blood neurofilament light chain in Parkinson's disease and atypical parkinsonian syndromes: a systematic review and Bayesian network meta-analysis.Journal of neurology · 2025Pooled it
- Systematic review of differentially abundant proteins in people with Lewy body dementia.Acta neuropsychiatrica · 2025Pooled it
- Acoustofluidic enrichment of small extracellular vesicles: physical principles, microfluidic implementations, and prospects for Parkinson's disease liquid biopsy.Mikrochimica acta · 2026Review
- Plasma neurofilament light for early differentiation of multiple system atrophy from Parkinson disease.EBioMedicine · 2026Article
- Biomarkers stewardship in parkinsonism: integrating alpha-synuclein seed amplification assays and neurofilament light chain into diagnostic pathways and patient communication.Journal of neurology · 2026Review
- Serum neurofilaments for motoneuron and dementia diseases: a German multicenter cohort study.Journal of neurology · 2026Article
- A Systematic Comparison of Alpha-Synuclein Seed Amplification Assays for Increasing Reproducibility.Annals of clinical and translational neurology · 2026Review
- Clinical and Imaging Characteristics of Parkinson's Disease with Negative Alpha-Synuclein Seed Amplification Assay.Movement disorders : official journal of the Movement Disorder Society · 2026Article
- Seed Amplification Assays for Parkinson's Disease: A Review of α-Synuclein Assays in Body Fluids and Tissues.Journal of neurochemistry · 2026Review
- Clinical correlates of a negative cerebrospinal fluid α-synuclein seed amplification assay result in Parkinson's disease.NPJ Parkinson's disease · 2026Article
- Tear fluid as a novel specimen for detection of alpha-synuclein seeding activity in Parkinson's disease.Scientific reports · 2026Article
- Correlating symptoms and skin α-synuclein seeding parameters in olfactory dysfunction and Lewy body dementia.Journal of neurology · 2026Article
- An eight-year follow-up of the CMSAR: assessing how the new MDS criteria and biomarkers impact diagnostic accuracy.NPJ Parkinson's disease · 2026Article
- Development and validation of a multimodal nomogram predicting anxiety and depression in Parkinson's disease: integrating plasma biomarkers and clinical phenotypes.Frontiers in aging neuroscience · 2026Article
- Lithium as a disease-modifying therapy for Parkinson's disease: mechanisms, preclinical evidence, and clinical prospects.Clinical parkinsonism & related disorders · 2026Review
- Regional homogeneity differences in resting-state fMRI between Parkinson's disease and multiple system atrophy-parkinsonian type.Journal of neural transmission (Vienna, Austria : 1996) · 2026Article
- α-Synuclein Real-Time Quaking-Induced Conversion Assay as a Biomarker for Parkinson's Disease: Clinical Implications and Perspectives.Journal of clinical neurology (Seoul, Korea) · 2026Review
- Multiple system atrophy: advances in pathogenesis and emerging therapeutic strategies.Journal of neurology · 2025Review
- Diagnostic utility of biomarkers in progressive supranuclear palsy: toward a biotyping framework.Journal of neurology · 2025Review
19 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
14 authors at 3 institutions in 1 country.
Funding
Abstract
Neurofilament light chain (NfL) and α-synuclein oligomeric seeds (α-syn-s) are promising biomarkers for patients with parkinsonism. We assessed their performance in discriminating Parkinson disease (PD) from atypical parkinsonisms (APDs) and evaluated the association between NfL levels and clinical measures of disease severity. We measured NfL in cerebrospinal fluid (CSF) and/or plasma by immunoassays and α-syn-s in CSF by real-time quaking-induced conversion (RT-QuIC) in patients with PD (n = 153), multiple system atrophy (MSA) (n = 80), progressive supranuclear palsy/cortico-basal syndrome (PSP/CBS) (n = 58), dementia with Lewy bodies (n = 64), isolated REM-sleep behaviour disorder (n = 19), and isolated autonomic failure (n = 30). Measures of disease severity included disease duration, UPDRS-III score, Hoehn and Yahr stage, orthostatic hypotension, MMSE score, and CSF amyloid-beta profile. Both CSF NfL (cNfL) and plasma NfL (pNfL) levels were markedly elevated in APDs, and allowed differentiation with PD (vs. APDs, cNfL AUC 0.96; pNfL AUC 0.95; vs. MSA cNfL AUC 0.99; pNfL AUC 0.97; vs. PSP/CBS cNfL AUC 0.94; pNfL AUC 0.94). RT-QuIC detected α-syn-s in 91.4% of PD, but only 2.5% of APDs (all MSA). In PD/PDD, motor scales significantly correlated with cNfL levels. Although pNfL and both cNfL and α-syn-s accurately distinguished PD from APDs, the combined assessment of CSF markers provided a higher diagnostic value (PD vs. APDs AUC 0.97; vs. MSA AUC 0.97; vs. PSP/CBS AUC 0.99) than RT-QuIC alone (p = 0.047 vs. APDs; p = 0.002 vs MSA; p = 0.007 vs PSP/CBS), or cNfL alone (p = 0.011 vs. APDs; p = 0.751 vs MSA; p = 0.0001 vs. PSP/CBS). The results support the use of these assays in specialised clinics.
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.