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Eur Neurol. 2009;62(2):99-104. doi: 10.1159/000222780. Epub 2009 Jun 12.

Is there an association between the level of high-sensitivity C-reactive protein and idiopathic Parkinson's disease? A comparison of Parkinson's disease patients, disease controls and healthy individuals.

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Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Korea.



High-sensitivity C-reactive protein (hs-CRP) is a sensitive systemic marker of inflammation, and increased levels of hs-CRP are associated with inflammatory reactions. Microglia-mediated neuroinflammation has been hypothesized to play an important role in the pathogenesis of idiopathic Parkinson's disease (PD). However, the clinical value of hs-CRP in PD is poorly defined. Therefore, we conducted this study to investigate the clinical value of hs-CRP in patients with PD.


We examined 212 patients with de novo PD, 253 patients with acute ischemic cerebrovascular disease and 119 healthy subjects and investigated the differences in hs-CRP among these 3 groups. The PD group was classified into 4 subgroups according to the Hoehn and Yahr stage to investigate the relationship between hs-CRP and symptom severity.


There was no significant difference in the hs-CRP value between the PD and the ischemic cerebrovascular disease groups, but the subjects in the 2 disease groups demonstrated higher hs-CRP levels than those in the normal control group. A post-hoc analysis of the 4 PD subgroups showed no significant differences in hs-CRP values. In addition, this study demonstrated that the odds ratio of the PD group by hs-CRP was 2.037 (95% CI 1.180-3.517; p = 0.011).


We suggest that our results could support the hypothesis that neuroinflammation contributed to the pathogenesis of PD and cautiously assume that elevated hs-CRP might have a clinical value as a risk factor for PD.

[Indexed for MEDLINE]

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