Alterations of Cortical Structure and Neurophysiology in Parkinson's Disease Are Aligned with Neurochemical Systems

神经化学 神经科学 神经生理学 心理学 帕金森病 退行性疾病 医学 中枢神经系统疾病 疾病 病理
作者
Alex I. Wiesman,Jason da Silva Castanheira,Edward A. Fon,Sylvain Baillet
出处
期刊:Annals of Neurology [Wiley]
卷期号:95 (4): 802-816 被引量:8
标识
DOI:10.1002/ana.26871
摘要

Objective Parkinson's disease (PD) affects the structural integrity and neurophysiological signaling of the cortex. These alterations are related to the motor and cognitive symptoms of the disease. How these changes are related to the neurochemical systems of the cortex is unknown. Methods We used T1‐weighted magnetic resonance imaging (MRI) and magnetoencephalography (MEG) to measure cortical thickness and task‐free neurophysiological activity in patients with idiopathic PD (n MEG = 79, n MRI = 65) and matched healthy controls (n MEG = 65, n MRI = 37). Using linear mixed‐effects models, we examined the topographical alignment of cortical structural and neurophysiological alterations in PD with cortical atlases of 19 neurotransmitter receptor and transporter densities. Results We found that neurophysiological alterations in PD occur primarily in brain regions rich in acetylcholinergic, serotonergic, and glutamatergic systems, with protective implications for cognitive and psychiatric symptoms. In contrast, cortical thinning occurs preferentially in regions rich in noradrenergic systems, and the strength of this alignment relates to motor deficits. Interpretation This study shows that the spatial organization of neurophysiological and structural alterations in PD is relevant for nonmotor and motor impairments. The data also advance the identification of the neurochemical systems implicated. The approach uses novel nested atlas modeling methodology that is transferrable to research in other neurological and neuropsychiatric diseases and syndromes. ANN NEUROL 2024;95:802–816
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