ArticleNPJ Parkinson's disease2022
Diffusion along perivascular spaces as marker for impairment of glymphatic system in Parkinson's disease.
Article in NPJ Parkinson's disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 147 papers, 3 of them syntheses that pooled it.
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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
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
147 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Glymphatic Dysfunction in Parkinson's Disease: A Systematic Review and Meta-Analysis of Neuroimaging Studies.Movement disorders clinical practice · 2026Pooled it
- Altered regional spontaneous brain activity in Parkinson's disease: a meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Pooled it
- Evaluating the robustness of DTI-ALPS in clinical context: a meta-analytic parallel on Alzheimer's and Parkinson's diseases.Scientific reports · 2024Pooled it
- The impaired hemodynamics of choroid plexus and its interactions within the glymphatic system in Parkinson's disease.GeroScience · 2026Article
- The Glymphatic System in α-Synucleinopathies.Yonsei medical journal · 2026Review
- DTI-ALPS as a marker of glymphatic function: Review of the literature findings, methodology, and interpretation.Neuroimage. Reports · 2026Article
- Choroid Plexus Microstructural Alterations Link Glymphatic Dysfunction and White Matter Degeneration in Parkinson's Disease.CNS neuroscience & therapeutics · 2026Article
- Noninvasive 3D mapping of tissue stress using reverberant shear wave.Nature communications · 2026Article
- The glymphatic system and Parkinson's disease: a narrative review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Review
- Altered Glymphatic-Related MRI Metrics and Brain Network Reorganization in Drug-Naive Children With Self-Limited Epilepsy With Centrotemporal Spikes.CNS neuroscience & therapeutics · 2026Article
- Investigation of type 2 diabetes mellitus and mild cognitive impairment: a study based on diffusion tensor imaging analysis along the perivascular space and peak width of skeletonized mean diffusivity.Quantitative imaging in medicine and surgery · 2026Article
- Multimodal Neuroimaging-Based Machine Learning Models Leveraging Cerebral Morphometry and Glymphatic Parameters Predict Short-Term Post-Programming STN-DBS Motor Response in Parkinson's Disease.CNS neuroscience & therapeutics · 2026Article
- Simultaneous Assessment of Intracranial Artery and Paravascular CSF Pulsation Using 3D Whole-Brain Diffusion-Prepared Cine bSSFP (DECAF) MRI.Magnetic resonance in medicine · 2026Article
- Glymphatic dysfunction associates with regional white matter hyperintensities and plasma amyloid-β burden across the Alzheimer's disease continuum.Psychological medicine · 2026Article
- Glymphatic Dysfunction, Brain Damage, and Clinical Disability in Spinocerebellar Ataxia Type 3.Movement disorders : official journal of the Movement Disorder Society · 2026Article
- White matter microstructural and network abnormalities in periventricular leukomalacia and their association with motor severity.Neuroradiology · 2026Article
- Associations between altered morphometric inverse divergence networks, choroid plexus volume, and perivascular space network in patients with Parkinson disease: a cross-sectional study.Quantitative imaging in medicine and surgery · 2026Article
- DTI-ALPS and subcortical structural-functional coupling mediate the impact of sleep quality on working memory in insomnia disorder.Psychological medicine · 2026Article
- Association of the DTI-ALPS index with motor and non-motor symptoms in Parkinson's disease with postural instability/gait difficulty: a diffusion tensor MRI study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Article
- Hierarchical organization of tau topography across the Alzheimer's disease continuum integrates amyloid, connectome, and intrinsic molecular vulnerability.Communications biology · 2026Article
87 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
The brain glymphatic system is involved in the clearance of misfolding α-synuclein, the impaired glymphatic system may contribute to the progression of Parkinson's disease (PD). We aimed to analyze the diffusion tensor image along the perivascular space (DTI-ALPS) and perivascular space (PVS) burden to reveal the relationship between the glymphatic system and PD. A cross-sectional study using a 7 T MRI of 76 PD patients and 48 controls was performed to evaluate the brain's glymphatic system. The DTI-ALPS and PVS burden in basal ganglia were calculated. Correlation analyses were conducted between DTI-ALPS, PVS burden and clinical features. We detected lower DTI-ALPS in the PD subgroup relative to controls, and the differences were more pronounced in patients with Hoehn & Yahr stage greater than two. The decreased DTI-ALPS was only evident in the left hemisphere in patients in the early stage but involved both hemispheres in more advanced PD patients. Decreased DTI-ALPS were also correlated with longer disease duration, higher Unified Parkinson's Disease Rating Scale motor score (UPDRS III) and UPDRS total scores, as well as higher levodopa equivalent daily dose. Moreover, the decreased DTI-ALPS correlated with increased PVS burden, and both indexes correlated with PD disease severity. This study demonstrated decreased DTI-ALPS in PD, which might initiate from the left hemisphere and progressively involve right hemisphere with the disease progression. Decreased DTI-ALPS index correlated with increased PVS burden, indicating that both metrics could provide supporting evidence of an impaired glymphatic system. MRI evaluation of the PVS burden and diffusion along PVS are potential imaging biomarkers for PD for disease progression.
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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.