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Does Early Detection of Non-motor Symptoms Facilitate Early Treatment of Parkinson's Disease? Kazuko Hasegawa 1 1Department of Neurology,National Hospital Organization,Sagamihara National Hospital Keyword: Parkinson's disease , natural history , disease modification , non-motor symptoms of PD , disease progression pp.453-461
Published Date 2012/4/1
DOI https://doi.org/10.11477/mf.1416101175
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Abstract

 Parkinson's disease (PD) is the second most common neurodegenerative disorder. The risk of developing of PD increases with age,it is estimated that the prevalence rate is approximately 150/100,000 in Japan. Recently,non-motor symptoms such as anosmia,autonomic failure,sleep disorders,sensory problems,depression,anxiety,cognitive disorders (including dementia),and psychosis are interested in the pathogenetic process of PD. According to the Braak's hypothesis,these non-motor symptoms precede the onset of the classic motor symptoms of PD. Many studies have shown that the number of neurons in the substantia nigra is decreased to approximately -40 to -60% in number when the motorsymptoms of PD are developed. In this article,review of special references regarding the natural history of PD shows that non-motor symptoms are the prodromal signs of PD. If disease modification therapy and/or disease prevention therapy is approved in the future,an early and accurate diagnosis of PD is needed. Accurate early diagnostic biomarkers including symptoms,some compounds,and radiological markers need to be identified.


Copyright © 2012, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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