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Do the effects of APOE-e4 on cognitive function and decline depend upon vitamin status? MacArthur Studies of Successful Aging.

Do the effects of APOE-e4 on cognitive function and decline depend upon vitamin status? MacArthur Studies of Successful Aging. The journal of nutrition, health & aging Brown, B., Huang, M. H., Karlamangla, A., Seeman, T., Kado, D. 2011; 15 (3): 196-201

Abstract

To investigate whether gene nutrient interactions influence the risk of cognitive dysfunction among older persons.We performed a cross-sectional and longitudinal study of 499 adults aged 70-79 years from the Mac Arthur Study of Successful Aging to determine the effect of apolipoprotein E (APOE) in conjunction with plasma levels of homocysteine and of the related B vitamins on multiple domains of cognitive function and cognitive decline.The APOE-e4 allele, high homocysteine, low folate, and low vitamin B6 levels were each associated with worse baseline cognitive function, and all but B6 and B12 were associated with seven year cognitive decline. There was no interaction between APOE-e4, and homocysteine, folate, B6, or B12 in predicting baseline cognitive function (p-values: 0.12-0.94) or longitudinal decline (p-values: 0.52-0.91). Of five cognitive subtests, there was a significant interaction between the e4 allele, low B6, and decline in correct naming response items (p=0.04).B vitamin status does not influence the risk of overall cognitive dysfunction in e4 allele affected older adults.

View details for DOI 10.1007/s12603-010-0277-5

View details for PubMedID 21369667