The Macular Carotenoids Are Associated with Cognitive Function in Preadolescent Children
Overview
Authors
Affiliations
The macular carotenoids lutein (L) and zeaxanthin (Z) are obtained via diet and accumulate in the central retina where they are referred to as macular pigment. The density of this biomarker (macular pigment optical density; MPOD) has been positively correlated with cognitive functioning via measures of global cognition, processing speed, and visual-spatial abilities, among others. Although improvements in cognitive function have been found in adults, much less is known about how L and Z intake may support or improve cognitive functioning during periods of rapid developmental change, such as childhood and pre-adolescence. This study examined the relationship between MPOD and cognitive functioning in 51 7-13-year-old children (51% female). MPOD was measured using heterochromatic flicker photometry (HFP) optimized for this age group. Cognitive function was assessed using the Woodcock-Johnson III (composite standard scores were obtained for Brief Intellectual Ability, Verbal Ability, Cognitive Efficiency, Processing Speed, and Executive Processes). In this sample, MPOD was significantly related to Executive Processes, (47) = 0.288, < 0.05, and Brief Intellectual Ability, (47) = 0.268, < 0.05. The relationship to Cognitive Efficiency was positive and trending but not significant, (49) = 0.206, = 0.074. In general, these data are consistent with those of adults showing a link between higher carotenoid status and improved cognitive functioning.
Macular Pigment Optical Density as a Measurable Modifiable Clinical Biomarker.
Masri A, Armanazi M, Inouye K, Geierhart D, Davey P, Vasudevan B Nutrients. 2024; 16(19).
PMID: 39408240 PMC: 11478551. DOI: 10.3390/nu16193273.
Skin Carotenoids Are Related to Cognitive Abilities among Toddlers.
Rosok L, Fifield L, Sarma R, Keye S, Walk A, Khan N J Nutr. 2024; 154(11):3485-3494.
PMID: 39278413 PMC: 11600069. DOI: 10.1016/j.tjnut.2024.09.001.
Parekh R, Hammond Jr B, Chandradhara D Adv Ther. 2024; 41(4):1496-1511.
PMID: 38363462 PMC: 10960892. DOI: 10.1007/s12325-024-02785-1.
Some novel bioactivities of carotenoids, isolated from Wadi El-Natrun lakes.
Fayez D, Youssif A, Sabry S, Ghozlan H, El-Sayed F Saudi J Biol Sci. 2023; 30(11):103825.
PMID: 37869364 PMC: 10587757. DOI: 10.1016/j.sjbs.2023.103825.
Macular Pigment Optical Density and Skin Carotenoids in a Childhood Sample.
Cannavale C, Keye S, Rosok L, Martell S, Holthaus T, Raine L J Nutr. 2023; 153(10):3144-3151.
PMID: 37315793 PMC: 10613722. DOI: 10.1016/j.tjnut.2023.06.006.