25 May 2017 --- A new study has shown that serum alpha-carotene, beta-carotene and lycopene may contribute to increased risk and progression of Parkinson’s disease (PD). According to the authors, the study's findings support the notion that carotenes play an important role in the pathogenesis and progression of PD. Serum levels of antioxidants such as alpha-carotene, beta-carotene, retinol, alpha- and gamma-tocopherol, lutein, zeaxanthin and beta-cryptoxanthin were measured and compared between 104 patients with idiopathic PD (Early PD: Hoehn and Yahr stage I and II, N = 47; and Advanced PD: Hoehn and Yahr stage III and IV, N = 57) and 52 healthy controls matched for age and gender.



The correlation analyses of serum antioxidants and PD progression were performed using Hoehn and Yahr stage and Unified Parkinson’s Disease Rating Scale (UPDRS) motor score to indicate early PD and advanced PD, respectively.

When compared to control, all PD patients showed lower levels of alpha-carotene, beta-carotene and lycopene and negative correlation between Hoehn and Yahr stage and UPDRS motor score. In fact, significant reduction in serum alpha-carotene and lycopene were shown in advanced stage PD patients relative to early stage PD patients. However, no significant differences and no significant correlation were found in serum retinol, alpha- and gamma-tocopherols and other carotenoids in PD patients.

In response to the study, ExcelVite Nutrionist CheeYen Lau says, “We are delighted to learn that high dietary intake of alpha-carotene, beta-carotene and lycopene are linked with reduced risk or progression of PD. In fact, a previous publication The Association between Mediterranean Diet Adherence and Parkinson’s Disease shows lower adherence to Mediterranean diet (ie: low consumption of fruits and vegetables) is associated with PD status. Alpha-carotene, beta-carotene and lycopene are highly available in bright colored fruits and vegetables, therefore increased consumption of red, orange and yellow colored fruits and vegetables may help to reduce the risk of PD development.”

“Apart from ingesting carotenoid-rich foods, a convenient way of attaining high levels of alpha-carotene and beta-carotene is via dietary supplements. EVTene is a natural mixed-carotenoid complex concentrated from the fruit of oil palm that contains high amounts of both alpha- and beta-carotene as well as a small amount of other carotenoid such as lycopene. As a matter of fact, EVTene contains the highest level of alpha-carotene among all the carotene sources in the market (12 times higher alpha-carotene than Dunaliella salina - algae beta-carotene). Alpha-carotene is only found in trace level in fermentative beta-carotene, B. trispora. Hence, EVTene is an excellent choice of dietary source of important carotenes for brain health and function especially among the elders,” Lau adds.

The study was published in Nutrition Research and Practice and is available online.

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