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Initial motor reserve and long-term prognosis in Parkinson's disease

Authors
 Seok Jong Chung  ;  Han Soo Yoo  ;  Yang Hyun Lee  ;  Hye Sun Lee  ;  Phil Hyu Lee  ;  Young H Sohn 
Citation
 NEUROBIOLOGY OF AGING, Vol.92 : 1-6, 2020-08 
Journal Title
 NEUROBIOLOGY OF AGING 
ISSN
 0197-4580 
Issue Date
2020-08
Abstract
There are individual differences in motor deficits, despite a similar degree of dopamine neuronal loss in Parkinson's disease (PD), called motor reserve (MR). Factors enhancing MR have been documented previously, but the influence of initial MR on the long-term prognosis remains unclear. In this longitudinal study, we enrolled 205 patients with de novo PD to estimate individual MR based on initial motor deficits and striatal dopamine depletion using the residual-based approach. We assessed the risk of developing levodopa-induced dyskinesia (LID) or freezing of gait (FOG) and longitudinal increases in levodopa-equivalent dose (LED) according to MR estimates using the Cox regression model and linear mixed model, respectively. Throughout the follow-up period (≥3 years), greater MR estimates were associated with a lower risk for LID and FOG. In addition, patients with high MR received lower LED than those with low MR. These findings suggest that the initial MR, that is, individual's capacity to cope with PD-related pathologies, can be maintained with disease progression and can modulate the risk for LID or FOG.
Full Text
https://www.sciencedirect.com/science/article/pii/S0197458020300610
DOI
10.1016/j.neurobiolaging.2020.02.028
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Sohn, Young Ho(손영호) ORCID logo https://orcid.org/0000-0001-6533-2610
Yoo, Han Soo(유한수) ORCID logo https://orcid.org/0000-0001-7846-6271
Lee, Yang Hyun(이양현)
Lee, Phil Hyu(이필휴) ORCID logo https://orcid.org/0000-0001-9931-8462
Chung, Seok Jong(정석종) ORCID logo https://orcid.org/0000-0001-6086-3199
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/179707
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