scholarly journals Effect of Astaxanthin supplementation on cognitive function and depression in Patients with Type 2 Diabetes Mellitus

Background: The oral administration of Astaxanthin may decrease depression symptoms and improved cognitive function through its beneficial effects on inflammation, and oxidative stress. Objective: This study was designed to assess whether Astaxanthin supplementation can reduce symptoms of depression and increase MMSE score in patients with Type 2 Diabetes Mellitus. Methods: This randomized, double-blind, placebo-controlled clinical trial was performed in 44 patients between 30 and 60 y of age with a diagnosis of type 2 diabetes. Patients were randomly assigned to receive either a single capsule of 8 mg of Astaxanthin /day (n = 22) or placebo (n = 22) for 8 wk. The primary [Beck Depression Inventory (BDI), which examines depressive symptoms] and secondary (Mini-Mental State Examination (MSSE) score, which evaluates cognitive function) outcomes were assessed. Results: After 8 week of intervention, Mini-Mental State Examination baseline score was significantly improved only in the group treated with Astaxanthin, during study (p < 0.01). But no significant reduction in the Beck Depression Inventory (BDI) was observed in both group. Conclusion: Overall, Astaxanthin supplementation of patients with diabetes for 8 weeks had beneficial effects on the MMSE score. Key words: Astaxanthin, Cognitive function Depression

2009 ◽  
Vol 1280 ◽  
pp. 186-194 ◽  
Author(s):  
Hannah Bruehl ◽  
Oliver T. Wolf ◽  
Victoria Sweat ◽  
Aziz Tirsi ◽  
Stephen Richardson ◽  
...  

2008 ◽  
Vol 25 (3) ◽  
pp. 333-340 ◽  
Author(s):  
N. P. E. Kadoglou ◽  
F. Iliadis ◽  
N. Angelopoulou ◽  
D. Perrea ◽  
C. D. Liapis ◽  
...  

Author(s):  
Minoru Yamakado

Objective: An important medical issue in both Japan and Ashikaga City is how to extend healthy life expectancy. To determine factors associated with healthy life expectancy, we established a joint study between Ashikaga City and the Ashikaga University Faculty of Nursing called the Ashikaga Longevity Study, using new biomarkers such as Diacron reactive oxygen metabolites (d-ROMs) and biological antioxidant potential (BAP) tests as indicators of oxidative stress. In this study, factors related to cognitive function were clarified. Methods: Participants comprised 95 individuals (36 men; mean age, 91.0±5.1 years and 59 women; mean age, 92.2±5.9 years). Cognitive impairment was assessed using the Mini-Mental State Examination (MMSE). Results: MMSE score was ≤23 in 28 subjects (29.5%) and ≥24 in 67 subjects (70.5%). MMSE score showed significant negative correlations with age (p<0.0096), plasma alkaline phosphatase (p=0.0007), and peripheral leukocyte-to-lymphocyte ratio (p=0.0119), and positive correlations with plasma albumin (p=0.0096) and BAP-to-d-ROMs ratio (p=0.0427). Conclusions: These results suggest that cognitive decline may involve brain cell dysfunction due to inflammation based on a reduced ability to control oxidative stress. Not only anti-oxidative aerobic exercise but also anti-oxidative foods, may be necessary to maintain cognitive function.


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