ArticleJournal of neurology2022
A task-specific cognitive domain decline is correlated with plasma and neuroimaging markers in patients with Parkinson's disease.
Article in Journal of neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 3 of them syntheses that pooled it.
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Who cites it
7 citing papers in PubMed, 3 syntheses or guidelines pooled it, 6 citations in OpenAlex.
- Potential protein blood-based biomarkers for cognitive dysfunction in Parkinson's disease: a systematic review and network meta-analysis.Frontiers in aging neuroscience · 2026Pooled it
- Social cognition in Parkinson's disease: a comprehensive systematic review and integrative conceptual framework.Frontiers in aging neuroscience · 2026Pooled it
- Plasma alpha-synuclein predicts cognitive impairment in Parkinson's disease: a systematic review and meta-analysis.Journal of neurology · 2025Pooled it
- Executive functions in adults: scoping review of computerized neuropsychological batteries.Dementia & neuropsychologia · 2026Review
- Are We Asking the Right Questions? Sex Specificity of Dream Characteristics in Probable Rapid Eye Movement Sleep Behavior Disorder.Movement disorders clinical practice · 2025Article
- Self-testing for symptoms and signs of prodromal alpha-synucleinopathies: results from the Tasmanian ISLAND Sleep Study.GeroScience · 2025Article
- Serum sirtuin 3 levels and multimodal abnormalities in brain structure and function in Parkinson's disease patients with depression.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
backgroundCognitive impairment is a disabling non-motor symptom of Parkinson's disease (PD). It remains uncertain whether declines in specific cognitive domains relate to imaging or plasma biomarkers across the disease continuum.
objectiveWe investigated whether neuroimaging and plasma biomarkers correlate with individual task-specific cognitive domain declines evidenced by computerized neuropsychological tests in PD patients.
methodsA total of 107 participants, including 87 PD patients (30 with normal cognition [PD-NC], 30 with mild cognitive impairment [PD-MCI], 27 with dementia [PDD]), and 20 healthy controls, were recruited. All received the Cambridge Neuropsychological Test Automatic Battery (CANTAB) test, brain MRI, and assays of plasma biomarkers, including α-synuclein, tau, Aβ42, and Aβ40.
resultsPD patients had generally poorer cognitive performance than controls. Patients with PD-MCI and PDD had worse performance in visual, verbal, and working memory and executive function than those with PD-NC. After adjusting for covariates, PDD patients had global cortical thinning, especially in the temporal and parietal lobes, and higher plasma α-synuclein levels and tau:Aβ42 ratios than PD-NC group. Plasma α-synuclein level was associated with frontal lobe-mediated tasks, while the tau:Aβ42 ratio was associated with posterior cortical-mediated tasks. Facial emotion recognition tasks and visual pattern recognition associated with frontotemporal cortical thinning. The accuracy of predicting PDD using age alone (area under the curve [AUC] 0.756) increased by incorporating plasma biomarkers (AUC = 0.851, p = 0.025).
conclusionsCognitive decline in PD patients has a task-specific correlation with neuroimaging and plasma biomarkers, which may implicate the underlying neuropathological process of PDD.
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