Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease
Parkinson’s disease is associated with cognitive decline, misfolded protein deposition and brain atrophy. We herein hypothesized that structural abnormalities may be mediators between plasma misfolded proteins and cognitive functions. Neuropsychological assessments including five domains (attention,...
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doaj-c53be2d480c84c1c829d31f39468cbd82021-08-26T13:57:42ZengMDPI AGJournal of Personalized Medicine2075-44262021-07-011170270210.3390/jpm11080702Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s DiseaseChiun-Chieh Yu0Chia-Yin Lu1Meng-Hsiang Chen2Yueh-Sheng Chen3Cheng-Hsien Lu4Yi-Yun Lin5Kun-Hsien Chou6Wei-Che Lin7Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 123 Ta-Pei Road, Niao-Sung, Kaohsiung 833, TaiwanDepartment of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 123 Ta-Pei Road, Niao-Sung, Kaohsiung 833, TaiwanDepartment of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 123 Ta-Pei Road, Niao-Sung, Kaohsiung 833, TaiwanDepartment of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 123 Ta-Pei Road, Niao-Sung, Kaohsiung 833, TaiwanDepartment of Neurology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 123 Ta-Pei Road, Niao-Sung, Kaohsiung 833, TaiwanPhilosophy in Nursing, School of Nursing, Shu Zen College of Medicine and Management, Number 452, Hwan-Chio Rd, Luju Dist, Kaohsiung 821, TaiwanBrain Research Center, National Yang Ming Chiao Tung University, Taipei 112, TaiwanDepartment of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 123 Ta-Pei Road, Niao-Sung, Kaohsiung 833, TaiwanParkinson’s disease is associated with cognitive decline, misfolded protein deposition and brain atrophy. We herein hypothesized that structural abnormalities may be mediators between plasma misfolded proteins and cognitive functions. Neuropsychological assessments including five domains (attention, executive, speech and language, memory and visuospatial functions), ultra-sensitive immunomagnetic reduction-based immunoassay (IMR) measured misfolded protein levels (phosphorylated-Tau, Amyloidβ-42 and 40, α-synuclein and neurofilament light chain) and auto-segmented brain volumetry using FreeSurfur were performed for 54 Parkinson’s disease (PD) patients and 37 normal participants. Our results revealed that PD patients have higher plasma misfolded protein levels. Phosphorylated-Tau (p-Tau) and Amyloidβ-42 (Aβ-42) were correlated with atrophy of bilateral cerebellum, right caudate nucleus, and right accumbens area (RAA). In mediation analysis, RAA atrophy completely mediated the relationship between p-Tau and digit symbol coding (DSC). RAA and bilateral cerebellar cortex atrophy partially mediated the Aβ-42 and executive function (DSC and abstract thinking) relationship. Our study concluded that, in PD, p-Tau deposition adversely impacts DSC by causing RAA atrophy. Aβ-42 deposition adversely impacts executive functions by causing RAA and bilateral cerebellum atrophy.https://www.mdpi.com/2075-4426/11/8/702cognitiondementiagray matter atrophymisfolding proteinParkinson’s disease |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chiun-Chieh Yu Chia-Yin Lu Meng-Hsiang Chen Yueh-Sheng Chen Cheng-Hsien Lu Yi-Yun Lin Kun-Hsien Chou Wei-Che Lin |
spellingShingle |
Chiun-Chieh Yu Chia-Yin Lu Meng-Hsiang Chen Yueh-Sheng Chen Cheng-Hsien Lu Yi-Yun Lin Kun-Hsien Chou Wei-Che Lin Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease Journal of Personalized Medicine cognition dementia gray matter atrophy misfolding protein Parkinson’s disease |
author_facet |
Chiun-Chieh Yu Chia-Yin Lu Meng-Hsiang Chen Yueh-Sheng Chen Cheng-Hsien Lu Yi-Yun Lin Kun-Hsien Chou Wei-Che Lin |
author_sort |
Chiun-Chieh Yu |
title |
Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease |
title_short |
Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease |
title_full |
Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease |
title_fullStr |
Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease |
title_full_unstemmed |
Brain Atrophy Mediates the Relationship between Misfolded Proteins Deposition and Cognitive Impairment in Parkinson’s Disease |
title_sort |
brain atrophy mediates the relationship between misfolded proteins deposition and cognitive impairment in parkinson’s disease |
publisher |
MDPI AG |
series |
Journal of Personalized Medicine |
issn |
2075-4426 |
publishDate |
2021-07-01 |
description |
Parkinson’s disease is associated with cognitive decline, misfolded protein deposition and brain atrophy. We herein hypothesized that structural abnormalities may be mediators between plasma misfolded proteins and cognitive functions. Neuropsychological assessments including five domains (attention, executive, speech and language, memory and visuospatial functions), ultra-sensitive immunomagnetic reduction-based immunoassay (IMR) measured misfolded protein levels (phosphorylated-Tau, Amyloidβ-42 and 40, α-synuclein and neurofilament light chain) and auto-segmented brain volumetry using FreeSurfur were performed for 54 Parkinson’s disease (PD) patients and 37 normal participants. Our results revealed that PD patients have higher plasma misfolded protein levels. Phosphorylated-Tau (p-Tau) and Amyloidβ-42 (Aβ-42) were correlated with atrophy of bilateral cerebellum, right caudate nucleus, and right accumbens area (RAA). In mediation analysis, RAA atrophy completely mediated the relationship between p-Tau and digit symbol coding (DSC). RAA and bilateral cerebellar cortex atrophy partially mediated the Aβ-42 and executive function (DSC and abstract thinking) relationship. Our study concluded that, in PD, p-Tau deposition adversely impacts DSC by causing RAA atrophy. Aβ-42 deposition adversely impacts executive functions by causing RAA and bilateral cerebellum atrophy. |
topic |
cognition dementia gray matter atrophy misfolding protein Parkinson’s disease |
url |
https://www.mdpi.com/2075-4426/11/8/702 |
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