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Neurodegener Dis. 2011;8(4):252-8. doi: 10.1159/000323265. Epub 2011 Feb 1.

Serological profiles of urate, paraoxonase-1, ferritin and lipid in Parkinson's disease: changes linked to disease progression.

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Department of Neurology, Toho University Omori Medical Center, Tokyo, Japan.



Oxidative stress plays a role in the pathogenesis of neuronal death. Serum levels of urate or lipid were associated with the incidence of Parkinson's disease (PD).


We compared urate, paraoxonase-1 (PON1), iron, ferritin and lipid in sera of 119 PD patients and 120 healthy controls matched by age, sex and body mass index. We aimed to elucidate whether those serological data are correlated with disease progression.


Mean age (SD) of PD patients was 73.4 (8.7) years. Mean Yahr stage (SD) was 3.2 (0.9). Mean disease duration (SD) was 6.9 (5.1) years. Mean dose of L-DOPA (SD) was 355 (157) mg/day. As compared to controls, serum levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), urate and PON1 activity were significantly reduced, and serum ferritin levels were significantly increased in male and female PD patients. Serum urate levels and PON1 activities were inversely related, and serum ferritin levels were correlated with Yahr stage and PD duration in men and women. Serum levels of TC and LDL-C were inversely related to Yahr stage or PD duration in female patients.


Our studies indicated serological profiles of urate, PON1, ferritin, TC and LDL-C in PD patients. These serological changes were linked to PD progression. Metabolism of lipid, oxidant- and antioxidant-related substances may contribute to the pathogenesis and the progression of PD.

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