scholarly journals In Pursuit of Healthy Aging: Effects of Nutrition on Brain Function

2021 ◽  
Vol 22 (9) ◽  
pp. 5026
Author(s):  
Thayza Martins Melzer ◽  
Luana Meller Manosso ◽  
Suk-yu Yau ◽  
Joana Gil-Mohapel ◽  
Patricia S. Brocardo

Consuming a balanced, nutritious diet is important for maintaining health, especially as individuals age. Several studies suggest that consuming a diet rich in antioxidants and anti-inflammatory components such as those found in fruits, nuts, vegetables, and fish may reduce age-related cognitive decline and the risk of developing various neurodegenerative diseases. Numerous studies have been published over the last decade focusing on nutrition and how this impacts health. The main objective of the current article is to review the data linking the role of diet and nutrition with aging and age-related cognitive decline. Specifically, we discuss the roles of micronutrients and macronutrients and provide an overview of how the gut microbiota-gut-brain axis and nutrition impact brain function in general and cognitive processes in particular during aging. We propose that dietary interventions designed to optimize the levels of macro and micronutrients and maximize the functioning of the microbiota-gut-brain axis can be of therapeutic value for improving cognitive functioning, particularly during aging.

2013 ◽  
Vol 12 (3) ◽  
pp. 764-776 ◽  
Author(s):  
Jim R. Fadel ◽  
Corinne G. Jolivalt ◽  
Lawrence P. Reagan

2015 ◽  
Vol 21 (7) ◽  
pp. 450-460 ◽  
Author(s):  
Joseph A. McQuail ◽  
Charles J. Frazier ◽  
Jennifer L. Bizon

2004 ◽  
Vol 5 (2) ◽  
pp. 166-176
Author(s):  
Melanie S. Burkhardt ◽  
Jonathan K. Foster ◽  
Ralph N. Martins

AbstractThe potential role of supplementing sex steroids for the prevention and delay of age-related cognitive decline has received a great deal of recent interest. Although the biological plausibility of hormone treatment has received considerable support, clinical studies of cognitive functioning after hormonal treatment in postmenopausal women with and without dementia have produced mixed results. Much less attention has been given to the corresponding role of androgens in men. In order to establish the relevance of hormonal supplementation for men in delaying or preventing cognitive decline, it is of importance to evaluate both adrenal and gonadal contributions to androgen status. Additionally, consideration must also be given to the potential interactions of androgens with risk and protective factors (e.g., apolipoprotein E genotype and education). Here we review experimental and epidemiological studies of the significance of androgens for cognitive function.


Author(s):  
Jolly Todd ◽  
Michie Patricia ◽  
Bateman Grant ◽  
Fulham William ◽  
Cooper Patrick ◽  
...  

1997 ◽  
Vol 135 ◽  
pp. S3
Author(s):  
A. Capurso ◽  
V. Solfrizzi ◽  
F. Panza ◽  
F. Torres ◽  
F. Mastroianni ◽  
...  

2018 ◽  
Vol 234 (3) ◽  
pp. 2447-2459 ◽  
Author(s):  
Mohammad Hosein Farzaei ◽  
Roodabeh Bahramsoltani ◽  
Zahra Abbasabadi ◽  
Nady Braidy ◽  
Seyed Mohammad Nabavi

2020 ◽  
Vol 32 (9) ◽  
pp. 1813-1822 ◽  
Author(s):  
Tam T. Tran ◽  
Camarin E. Rolle ◽  
Adam Gazzaley ◽  
Bradley Voytek

Healthy aging is associated with a multitude of structural changes in the brain. These physical age-related changes are accompanied by increased variability in neural activity of all kinds, and this increased variability, collectively referred to as “neural noise,” is argued to contribute to age-related cognitive decline. In this study, we examine the relationship between two particular types of neural noise in aging. We recorded scalp EEG from younger (20–30 years old) and older (60–70 years old) adults performing a spatial visual discrimination task. First, we used the 1/ f-like exponent of the EEG power spectrum, a putative marker of neural noise, to assess baseline shifts toward a noisier state in aging. Next, we examined age-related decreases in the trial-by-trial consistency of visual stimulus processing. Finally, we examined to what extent these two age-related noise markers are related, hypothesizing that greater baseline noise would increase the variability of stimulus-evoked responses. We found that visual cortical baseline noise was higher in older adults, and the consistency of older adults' oscillatory alpha (8–12 Hz) phase responses to visual targets was also lower than that of younger adults. Crucially, older adults with the highest levels of baseline noise also had the least consistent alpha phase responses, whereas younger adults with more consistent phase responses achieved better behavioral performance. These results establish a link between tonic neural noise and stimulus-associated neural variability in aging. Moreover, they suggest that tonic age-related increases in baseline noise might diminish sensory processing and, as a result, subsequent cognitive performance.


2019 ◽  
Author(s):  
Gregory D. Clemenson ◽  
Shauna M. Stark ◽  
Samantha M. Rutledge ◽  
Craig E.L. Stark

AbstractHealthy aging is accompanied by a steady cognitive decline with clear losses in memory. Animal studies have consistently demonstrated that simply modifying an animal’s living environment (known as environmental enrichment) can have a positive influence on age-related cognitive decline in the hippocampus. Previously, we showed that playing immersive 3D video games can improve hippocampal-based memory in young healthy adults, suggesting that the exploration of the large open worlds of modern-day video games may act as proxy for environmental enrichment in humans. Here, we replicated our previous video game study in older adults and showing that playing video games for 4 weeks can improve hippocampal-based memory in a population that is already experiencing age-related decline in this memory. Furthermore, we showed that the improvements last for up to 4 weeks past the intervention, highlighting the potential of video games as intervention for age-related cognitive decline.


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