ArticleNPJ Parkinson's disease2024
A worldwide study of white matter microstructural alterations in people living with Parkinson's disease.
Article in NPJ Parkinson's disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
What it found
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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
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Human leukocyte antigen (HLA) class I and II genetic relationships with brain imaging measures: A systematic review and meta-analysis.Brain, behavior, and immunity · 2025Pooled it
- Integrating retinal and brain imaging biomarkers for diagnosis of parkinson's disease: findings from a time-lagged cross-sectional persian cohort study.Scientific reports · 2026Article
- What's in a name? reframing advanced Parkinson's disease as a multidimensional state.Journal of neural transmission (Vienna, Austria : 1996) · 2026Review
- Local and global microstructural and functional thalamomotor connectivity alterations in Parkinson's disease following motor learning.NPJ Parkinson's disease · 2026Article
- The degenerome-a novel streamline-wise approach for white matter integrity in neurodegeneration.NPJ Parkinson's disease · 2026Article
- Fronto-caudate and callosal microstructural alterations: unveiling multimodal MRI biomarkers in early Parkinson's disease.The British journal of radiology · 2026Article
- In-vivo histology of Parkinson's disease using quantitative multiparametric mapping.NPJ Parkinson's disease · 2026Article
- Preserved white matter integrity is a promising indicator of cognitive resilience in Parkinson's disease.Scientific reports · 2025Article
- Synthetic MRI study of brain volume and subcortical myelin in various Parkinson's disease motor subtypes.NPJ Parkinson's disease · 2025Article
- Altered white matter architecture in patients with isolated congenital anosmia.Brain structure & function · 2025Article
- Early Alterations in De Novo Parkinson's Disease Revealed by Diffusion Tensor Imaging: Preliminary Study.Diagnostics (Basel, Switzerland) · 2025Article
- Synthetic Diffusion Tensor Imaging Maps Generated by 2D and 3D Probabilistic Diffusion Models: Evaluation and Applications.bioRxiv : the preprint server for biology · 2025Article
- Genetic analyses identify circulating genes related to brain structures associated with Parkinson's disease.NPJ Parkinson's disease · 2025Article
- Microstructural mapping of neural pathways in Alzheimer's disease using macrostructure-informed normative tractometry.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Microstructural Mapping of Neural Pathways in Alzheimer's Disease using Macrostructure-Informed Normative Tractometry.bioRxiv : the preprint server for biology · 2024Article
- Diffusion microstructure alterations in subcortical gray matter are associated with cognitive and motor performance in Parkinson's disease: a pilot study.Frontiers in neurologyArticle
Corrections and comments
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Authors and funding
58 authors.
Funding
Abstract
The progression of Parkinson's disease (PD) is associated with microstructural alterations in neural pathways, contributing to both motor and cognitive decline. However, conflicting findings have emerged due to the use of heterogeneous methods in small studies. Here we performed a large diffusion MRI study in PD, integrating data from 17 cohorts worldwide, to identify stage-specific profiles of white matter differences. Diffusion-weighted MRI data from 1654 participants diagnosed with PD (age: 20-89 years; 33% female) and 885 controls (age: 19-84 years; 47% female) were analyzed using the ENIGMA-DTI protocol to evaluate white matter microstructure. Skeletonized maps of fractional anisotropy (FA) and mean diffusivity (MD) were compared across Hoehn and Yahr (HY) disease groups and controls to reveal the profile of white matter alterations at different stages. We found an enhanced, more widespread pattern of microstructural alterations with each stage of PD, with eventually lower FA and higher MD in almost all regions of interest: Cohen's d effect sizes reached d = -1.01 for FA differences in the fornix at PD HY Stage 4/5. The early PD signature in HY stage 1 included higher FA and lower MD across the entire white matter skeleton, in a direction opposite to that typical of other neurodegenerative diseases. FA and MD were associated with motor and non-motor clinical dysfunction. While overridden by degenerative changes in the later stages of PD, early PD is associated with paradoxically higher FA and lower MD in PD, consistent with early compensatory changes associated with the disorder.
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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.