ReviewThe Lancet. Neurology2024
A biological classification of Parkinson's disease: the SynNeurGe research diagnostic criteria.
Review in The Lancet. Neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 342 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
342 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Diagnostic biomarkers for α-synucleinopathies- state of the art and future developments: a systematic review.Molecular neurodegeneration · 2025Pooled it
- AI Video Analysis in Parkinson's Disease: A Systematic Review of the Most Accurate Computer Vision Tools for Diagnosis, Symptom Monitoring, and Therapy Management.Sensors (Basel, Switzerland) · 2025Pooled it
- Research advances in the microbiota‑gut‑brain axis and Parkinson's disease (Review).Molecular medicine reports · 2026Review
- Subjective Cognitive Concerns and Cognitive Trajectories in Parkinson's Disease: Biomarker Impact.Annals of clinical and translational neurology · 2026Article
- Clinical markers of disease progression in the prodromal to overt alpha-synucleinopathy continuum.Brain : a journal of neurology · 2026Article
- Multimodal PET-MRI profiling predicts dementia with Lewy bodies in isolated REM sleep behaviour disorder.Journal of neurology · 2026Article
- Modeling Framework for Economic Evaluation of Disease-Modifying Therapies in Parkinson's Disease: Evidence Review and Expert Opinion.PharmacoEconomics · 2026Article
- A review of FDG-PET biomarker analysis methods in Parkinson's disease.Journal of Parkinson's disease · 2026Review
- Unified long-read panel for Parkinson's and repeat expansion disorders.NPJ Parkinson's disease · 2026Article
- Dynamic [Molecular neurodegeneration · 2026Article
- Mitochondrial Quality Control Imbalance in the Heterogeneity of Parkinson's Disease: From Selective Vulnerability to Stratified Transformation.International journal of molecular sciences · 2026Review
- Cognitive and motor profiles in biologically defined Parkinson's and Alzheimer's disease.Journal of Parkinson's disease · 2026Article
- [Dementia with Lewy bodies].Fortschritte der Neurologie-Psychiatrie · 2026Review
- Brain-first and body-first subtypes of Lewy body disease.Nature reviews. Neurology · 2026Review
- Dopaminergic Radiopharmaceutical Imaging in Parkinsonian Syndromes: From Molecular Targets to Clinical Decision-Making.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Pre-dementia clinical trajectories associated with neuronal α-synuclein neuropathologic change: a retrospective cohort study.Research square · 2026Article
- Biological heterogeneity in Parkinson's disease: implications for MRI-based patient stratification.NPJ Parkinson's disease · 2026Review
- Global research synergy: Advancing fundamental Parkinson's research through international collaboration.Journal of Parkinson's disease · 2026Review
- Selective Neuronal Vulnerability to Alpha-Synuclein Pathology in Parkinson's Disease: A Critical Review of Mechanistic Rationale and Biomarker Stratification.Medical sciences (Basel, Switzerland) · 2026Review
- The neurologist of 2050: Rethinking the role in movement disorders in a technologically transformed society.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Review
282 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
- Commented on by
- Erratum issued
Authors and funding
9 authors.
Funding
Abstract
With the hope that disease-modifying treatments could target the molecular basis of Parkinson's disease, even before the onset of symptoms, we propose a biologically based classification. Our classification acknowledges the complexity and heterogeneity of the disease by use of a three-component system (SynNeurGe): presence or absence of pathological α-synuclein (S) in tissues or CSF; evidence of underlying neurodegeneration (N) defined by neuroimaging procedures; and documentation of pathogenic gene variants (G) that cause or strongly predispose to Parkinson's disease. These three components are linked to a clinical component (C), defined either by a single high-specificity clinical feature or by multiple lower-specificity clinical features. The use of a biological classification will enable advances in both basic and clinical research, and move the field closer to the precision medicine required to develop disease-modifying therapies. We emphasise the initial application of these criteria exclusively for research. We acknowledge its ethical implications, its limitations, and the need for prospective validation in future studies.
Indexed as
Identifiers
38267191What OpenQuestion holds
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.