The association between serum vitamin d level and cognitive function in older adults: Cooper Center Longitudinal Study

2018 ◽  
Vol 113 ◽  
pp. 57-61 ◽  
Author(s):  
Andjelka Pavlovic ◽  
Katelyn Abel ◽  
Carolyn E. Barlow ◽  
Stephen W. Farrell ◽  
Myron Weiner ◽  
...  
2012 ◽  
Vol 16 (10) ◽  
pp. 898-901 ◽  
Author(s):  
Amie Peterson ◽  
N. Mattek ◽  
A. Clemons ◽  
G. L. Bowman ◽  
T. Buracchio ◽  
...  

2015 ◽  
Vol 45 (4) ◽  
pp. 1119-1126 ◽  
Author(s):  
Gabriele Nagel ◽  
Florian Herbolsheimer ◽  
Matthias Riepe ◽  
Thorsten Nikolaus ◽  
Michael D. Denkinger ◽  
...  

Author(s):  
E.P. Handing ◽  
B.J. Small ◽  
S.L. Reynolds ◽  
N.B. Kumar

OBJECTIVE: This study examined the influence of age, nutrition (as measured through food diaries and serum/plasma biomarkers) and inflammatory markers on cognitive performance in adults 60 years of age and older. DESIGN: A cross-sectional population based study, data from the National Health and Nutrition Examination Survey (NHANES; 2001-2002 wave). PARTICIPANTS: This study included 1,048 adults who had valid dietary data, blood biomarkers, were 60 years or older, completed the cognitive test, and had complete demographic information. METHOD: A series of regression models were used to examine the relationship between cognitive function as measured by the Digit Symbol Substitution Task (DSST), dietary factors/biomarkers and inflammation. Mediation analyses were then utilized to examine whether individual nutrients accounted for the relationships between age and DSST performance. RESULTS: Dietary fat intake, serum vitamin E, serum folate, serum iron, plasma homocysteine, and serum vitamin D were significantly associated with better DSST performance. Elevated fibrinogen and C-reactive protein, were significantly associated with poorer cognitive function, but did not remain statistically significant after controlling for age, gender, education, ethnicity, income, and total calorie intake. Serum vitamin D and plasma homocysteine accounted for a portion of age-related variance in DSST. Specifically, higher levels of vitamin D were related to better DSST performance, while higher homocysteine resulted in poorer cognitive performance. CONCLUSION: Diet and nutrition are important modifiable factors that can influence health outcomes and may be beneficial to remediate age-related declines in cognition. Adequate nutrition may provide a primary preventive approach to healthy aging and maintenance of cognitive functioning in older adults.


2016 ◽  
Vol 48 ◽  
pp. 317
Author(s):  
Sang-Koo Woo ◽  
Ji-Young Lee ◽  
Haeryun Hong ◽  
Hyun-Sik Kang

2013 ◽  
Vol 61 (1) ◽  
pp. 163-165 ◽  
Author(s):  
Cedric Annweiler ◽  
Susan W. Muir ◽  
Shamis Nabeel ◽  
Karen Gopaul ◽  
Olivier Beauchet ◽  
...  

2002 ◽  
Vol 14 (5) ◽  
pp. 382-388 ◽  
Author(s):  
Antonio del Puente ◽  
Antonella Esposito ◽  
Silvia Savastano ◽  
Assunta Carpinelli ◽  
Loredana Postiglione ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Huijin Lau ◽  
Arimi Fitri Mat Ludin ◽  
Nor Fadilah Rajab ◽  
Suzana Shahar

The increase of ageing population has raised public attention on the concept of successful ageing. Studies have shown that vitamin D, telomere length, and brain-derived neurotrophic factor (BDNF) have been associated with cognitive function. Therefore, this study aimed to identify neuroprotective factors for cognitive decline in different ageing groups. A total of 300 older adults aged 60 years and above were recruited in this population based cross-sectional study. Participants were categorized into three groups: mild cognitive impairment (MCI) (n=100), usual ageing (UA) (n=100), and successful ageing (SA) (n=100). Dietary vitamin D intake was assessed through Diet History Questionnaire (DHQ). Out of the 300 participants, only 150 were subjected to fasting blood sample collection. These samples were used for serum vitamin D and plasma BDNF measurements. Whole blood telomere length was measured using RT-PCR method. The results show that the reduction of the risk of MCI was achieved by higher serum vitamin D level (OR: 0.96, 95% CI: 0.92–0.99, p<0.05), higher plasma BDNF level (OR: 0.51, 95% CI: 0.30–0.88,  p<0.05), and longer telomere (OR: 0.97, 95% CI: 0.95–0.99,  p<0.001). In conclusion, participants with higher vitamin D level, higher BDNF level, and longer telomere length were more likely to age successfully.


Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 924
Author(s):  
João Botelho ◽  
Yago Leira ◽  
João Viana ◽  
Vanessa Machado ◽  
Patrícia Lyra ◽  
...  

Patients suffering from periodontitis are at a higher risk of developing cognitive dysfunction. However, the mediation effect of an inflammatory diet and serum vitamin D levels in this link is unclear. In total, 2062 participants aged 60 years or older with complete periodontal diagnosis and cognitive tests from the National Health and Nutrition Examination Survey (NHANES) 2011–2012 and 2013–2014 were enrolled. The Consortium to Establish a Registry for Alzheimer’s disease (CERAD) word learning subtest (WLT) and CERAD delayed recall test (DRT), the animal fluency test (AFT) and the digit symbol substitution test (DSST) was used. Dietary inflammatory index (DII) was computed via nutrition datasets. Mediation analysis tested the effects of DII and vitamin D levels in the association of mean probing depth (PD) and attachment loss (AL) in all four cognitive tests. Periodontitis patients obtained worse cognitive test scores than periodontally healthy individuals. DII was negatively associated with CERAD-WLT, CERAD-DRT, AFT and DSST, and was estimated to mediate between 9.2% and 36.4% of the total association between periodontitis with cognitive dysfunction (p < 0.05). Vitamin D showed a weak association between CERAD-DRT, AFT and DSST and was estimated to between 8.1% and 73.2% of the association between periodontitis and cognitive dysfunction (p < 0.05). The association between periodontitis and impaired cognitive function seems to be mediated both by a proinflammatory dietary load and vitamin D deficiency. Future studies should further explore these mediators in the periodontitis-cognitive decline link.


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