ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024
α-Synuclein seed amplification assay detects Lewy body co-pathology in autosomal dominant Alzheimer's disease late in the disease course and dependent on Lewy pathology burden.
Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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24 citing papers in PubMed, 33 citations in OpenAlex.
- Spatial multi-omics identifies early synaptic pruning and context-specific dopaminergic vulnerability in synucleinopathies.Nature communications · 2026Article
- Deep learning-based MRI analysis reveals Lewy body co-pathology accelerates brain aging in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- A Systematic Comparison of Alpha-Synuclein Seed Amplification Assays for Increasing Reproducibility.Annals of clinical and translational neurology · 2026Review
- Co-pathologies and biological processes beyond amyloid-beta and tau in people with Alzheimer's disease: Evidence from clinical cohort studies.Journal of internal medicine · 2026Review
- ATNIVS biomarker heterogeneity in real-world patients receiving lecanemab.The journal of prevention of Alzheimer's disease · 2026Article
- Amyloid-linked versus age-driven copathologies in Alzheimer's dementia: differential associations withResearch square · 2026Article
- Towards biomarker-based diagnosis of Parkinson disease.Nature reviews. Neurology · 2026Review
- From clinical phenotypes to molecular stratification: early differential diagnosis of four-repeat tauopathies.Frontiers in aging neuroscience · 2026Review
- A Biomarker-Based Classification of Corticobasal Syndrome.Movement disorders : official journal of the Movement Disorder Society · 2026Article
- Quantitative measurements of α-synuclein seeds in CSF inform diagnosis of synucleinopathies.Journal of Parkinson's disease · 2025Article
- Celebrating neuropathology's contributions to Alzheimer's Disease Research Centers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Amygdala-predominant Lewy bodies associate with cognitive decline and amygdala atrophy in Alzheimer's disease neuropathological change.Journal of neurology · 2025Article
- Strain-Distinct α-Synuclein and Tau Cross-Seeding Uncovered by Correlative Approach with Optical Photothermal Infrared Sub-Micron Imaging.Journal of the American Chemical Society · 2025Article
- Two-step detection of Lewy body pathology via smell-function testing and CSF α-synuclein seed amplification.Nature communications · 2025Article
- Implications and opportunities regarding biological frameworks in overt and prodromal dementia with Lewy bodies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Review
- Alpha-synuclein co-pathology in Down syndrome-associated Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Seeding amplification assay: Limitations and insights for enhanced clinical and research applications.Journal of Parkinson's disease · 2025Review
- Alpha synuclein co-pathology is associated with accelerated amyloid-driven tau accumulation in Alzheimer's disease.Molecular neurodegeneration · 2025Article
- A quantitative Lewy-fold-specific alpha-synuclein seed amplification assay as a progression marker for Parkinson's disease.Acta neuropathologica · 2025Article
- Initial biological classification of Lewy body diseases: No consensus on terminology.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
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Authors and funding
47 authors at 20 institutions in 10 countries.
Funding
Abstract
introductionAmyloid beta and tau pathology are the hallmarks of sporadic Alzheimer's disease (AD) and autosomal dominant AD (ADAD). However, Lewy body pathology (LBP) is found in ≈ 50% of AD and ADAD brains.
methodsUsing an α-synuclein seed amplification assay (SAA) in cerebrospinal fluid (CSF) from asymptomatic (n = 26) and symptomatic (n = 27) ADAD mutation carriers, including 12 with known neuropathology, we investigated the timing of occurrence and prevalence of SAA positive reactivity in ADAD in vivo.
resultsNo asymptomatic participant and only 11% (3/27) of the symptomatic patients tested SAA positive. Neuropathology revealed LBP in 10/12 cases, primarily affecting the amygdala or the olfactory areas. In the latter group, only the individual with diffuse LBP reaching the neocortex showed α-synuclein seeding activity in CSF in vivo. DISCUSSION: Results suggest that in ADAD LBP occurs later than AD pathology and often as amygdala- or olfactory-predominant LBP, for which CSF α-synuclein SAA has low sensitivity. HIGHLIGHTS: Cerebrospinal fluid (CSF) real-time quaking-induced conversion (RT-QuIC) detects misfolded α-synuclein in ≈ 10% of symptomatic autosomal dominant Alzheimer's disease (ADAD) patients. CSF RT-QuIC does not detect α-synuclein seeding activity in asymptomatic mutation carriers. Lewy body pathology (LBP) in ADAD mainly occurs as olfactory only or amygdala-predominant variants. LBP develops late in the disease course in ADAD. CSF α-synuclein RT-QuIC has low sensitivity for focal, low-burden LBP.
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