Association of serum carotenoid, retinol, and tocopherol concentrations with the progression of Parkinson’s Disease

Ji Hyun Kim, Jinah Hwang, Eugene Shim, Eun Jung Chung, Sung Hee Jang, Seong Beom Koh

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    BACKGROUND/OBJECTIVES: A pivotal role of oxidative stress has been emphasized in the pathogenesis as well as in the disease progression of Parkinson’s disease (PD). We aimed at investigating serum levels of antioxidant vitamins and elucidating whether they could be associated with the pathogenesis and progression of PD. MATERIALS/METHODS: Serum levels of retinol, α- and γ-tocopherols, α- and β-carotenes, lutein, lycopene, zeaxanthin and β -cryptoxanthin were measured and compared between 104 patients with idiopathic PD and 52 healthy controls matched for age and gender. In order to examine the relationship between antioxidant vitamins and the disease progression, multiple group comparisons were performed among the early PD (Hoehn and Yahr stage I and II, N = 47), advanced PD (stage III and IV, N = 57) and control groups. Separate correlation analyses were performed between the measured antioxidant vitamins and clinical variables, such as Hoehn and Yahr stage and Unified Parkinson’s Disease Rating Scale (UPDRS) motor score. RESULTS: Compared to controls, PD patients had lower levels of α- and β-carotenes and lycopene. α-carotene, β-carotene and lycopene levels were significantly reduced in advanced PD patients relative to early PD patients and were negatively correlated with Hoehn and Yahr stage and UPDRS motor score in PD patients. No significant differences were found in serum levels of retinol, α- and γ-tocopherols, and other carotenoids between PD patients and controls. No significant correlations were found between these vitamin levels and clinical variables in PD patients. CONCLUSTIONS: We found that serum levels of some carotenoids, α-carotene, β-carotene and lycopene, were lower in PD patients, and that these carotenoids inversely correlated with clinical variables representing disease progression. Our findings suggest that decreases in serum α-carotene, β-carotene and lycopene may be associated with the pathogenesis as well as progression of PD.

    Original languageEnglish
    Pages (from-to)114-120
    Number of pages7
    JournalNutrition Research and Practice
    Volume11
    Issue number2
    DOIs
    Publication statusPublished - 2017 Apr

    Keywords

    • Carotenoids
    • Disease progression
    • Oxidative stress
    • Parkinson disease

    ASJC Scopus subject areas

    • Food Science
    • Nutrition and Dietetics

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