Cited by 94Dementia and Cognitive Impairment ResearchAntioxidant Activity and Oxidative StressFatty Acid Research and Health

Lutein and Zeaxanthin Influence Brain Function in Older Adults: A Randomized Controlled Trial

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Lindbergh, Cutter A., Renzi-Hammond, Lisa M., Hammond, Billy R., Terry, Douglas P., Mewborn, Catherine M., Puente, Antonio N., Miller, L. Stephen·2018·Journal of the International Neuropsychological Society

Abstract

Objectives: The present study constitutes the first randomized controlled trial to investigate the relation of lutein (L) and zeaxanthin (Z) to brain function using functional magnetic resonance imaging (fMRI). It was hypothesized that L and Z supplementation in older adults would enhance neural efficiency (i.e., reduce activation) and cognitive performance on a verbal learning task relative to placebo. Methods: A total of 44 community-dwelling older adults (mean age=72 years) were randomly assigned to receive either placebo or L+Z supplementation (12 mg/daily) for 1 year. Neurocognitive performance was assessed at baseline and post-intervention on an fMRI-adapted task involving learning and recalling word pairs. Imaging contrasts of blood-oxygen-level-dependent (BOLD) signal were created by subtracting active control trials from learning and recall trials. A flexible factorial model was employed to investigate the expected group (placebo vs . supplement) by time (baseline vs . post-intervention) interaction in pre-specified regions-of-interest. Results: L and Z appeared to buffer cognitive decline on the verbal learning task (Cohen’s d =.84). Significant interactions during learning were observed in left dorsolateral prefrontal cortex and anterior cingulate cortex ( p < .05, family-wise-error corrected). However, these effects were in the direction of increased rather than decreased BOLD signal. Although the omnibus interaction was not significant during recall, within-group contrasts revealed significant increases in left prefrontal activation in the supplement group only. Conclusions: L and Z supplementation appears to benefit neurocognitive function by enhancing cerebral perfusion, even if consumed for a discrete period of time in late life. ( JINS , 2018, 24 , 77–90)

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  • Improved cognitive functions were observed in elderly patients supplemented for one year with a mixture of lutein and zeaxanthin (12 mg/day), albeit not significant compared to the placebo group.

    “Accordingly, improved cognitive functions were observed in elderly patients supplemented for one year with a mixture of lutein and zeaxanthin (12 mg/day), albeit not significant compared to the placebo group [162,163].”

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Authors
Lindbergh, C. A., Renzi-Hammond, L. M., Hammond, B. R., Terry, D. P., Mewborn, C. M., Puente, A. N., & Miller, L. S.
Affiliations
University of Georgia (US)
Corresponding author
Miller, L. Stephen
Venue
Journal of the International Neuropsychological Society
Published
2017-07-11
Volume
24
Issue
1
Pages
77-90
ISSN
  • 1355-6177 (ISSN-L)
  • 1469-7661
OpenAlex
W2734963879
Cited by
94
References
94
Citations by year
2026: 5 · 2025: 10 · 2024: 10 · 2023: 10 · 2022: 8 · 2021: 15 · 2020: 11 · 2019: 12 · 2018: 11 · 2017: 2
FWCI
8.08
Type
journal article
Language
en
Open access
Locations
  • Journal of the International Neuropsychological Society (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of Georgia
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
Keywords
lutein, zeaxanthin, carotenoid supplementation, brain function, older adults, cognitive decline, verbal learning, neural efficiency, dorsolateral prefrontal cortex, anterior cingulate cortex, cerebral perfusion, BOLD signal, neuropsychological performance
MeSH terms
Aged, Aged, 80 and over, Aging, Female, Gyrus Cinguli, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Verbal Learning, Lutein, Prefrontal Cortex, Dietary Supplements, Independent Living, Cognitive Dysfunction, Zeaxanthins

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