ArticleClinical neuroradiology2023
Excessive Daytime Sleepiness in Parkinson's Disease is Related to Functional Abnormalities in the Left Angular Gyrus.
Article in Clinical neuroradiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 12 citations in OpenAlex.
- Review
- Neuroimaging in advanced Parkinson's disease: insights into pathophysiology, biomarkers, and personalized therapies.Journal of neural transmission (Vienna, Austria : 1996) · 2025Review
- Evaluation of glymphatic system activity and lateralization by diffusion tensor imaging in Parkinson's disease with excessive daytime sleepiness.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025Article
- Decreased Cortical Sulcus Depth in Parkinson's Disease with Excessive Daytime Sleepiness.Clinical neuroradiology · 2025Article
- Neurofilament light chain concentration mediates the association between regional cortical thickness and Parkinson's disease with excessive daytime sleepiness.Frontiers in aging neuroscience · 2025Article
- Individual-specific metabolic network based onHuman brain mapping · 2024Article
- Altered dynamic functional network connectivity in drug-naïve Parkinson's disease patients with excessive daytime sleepiness.Frontiers in aging neuroscience · 2023Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
purposeExcessive daytime sleepiness (EDS) is a common non-motor symptom in Parkinson's disease (PD), but its neuropathology remains elusive. Our goal is to explore the potential neural substrates of EDS in a large sample of individuals with PD.
methodsWe recruited 48 PD patients with and 87 PD patients without EDS. We used resting-state functional magnetic resonance imaging to compare amplitudes of low-frequency fluctuations (ALFF) between the two groups. We also explored functional connectivity (FC) between the entire brain and regions where ALFF differed between the two groups as well as FC between selected regions of interest. Age, Part III of the Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS-III) score and use of dopamine receptor agonists were treated as covariates in the comparisons.
resultsEDS was associated with significantly lower ALFF in the left angular gyrus, and ALFF in this region correlated negatively with score on the Epworth Sleepiness Scale in patients with PD. EDS was also associated with significantly lower FC between the left angular gyrus and right cerebellum, based on seed-to-voxel and inter-ROI analyses.
conclusionOur results suggest that EDS in PD patients is associated with reduced spontaneous neural activity in the left angular gyrus and with reduced FC between the left angular gyrus and cerebellum. These findings may help understand and treat EDS in PD.
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