Mufson, Elliott J

Publication Detail

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Relation of higher folate intake to lower risk of Alzheimer disease in the elderly.

José A Luchsinger; Ming-Xin Tang; Joshua Miller; Ralph Green; Richard Mayeux (Profiled Author: Mayeux, Richard)

Taub Institute for Research of Alzheimer's Disease and the Aging Brain, Joseph P. Mailman School of Public Health, Columbia University, New York, NY, USA. jal94@columbia.edu
Archives of neurology 2007;64(1):86-92.

BACKGROUND: Higher intake of folate and vitamins B6 (pyridoxine hydrochloride) and B12 (cyanocobalamin) may decrease the risk of Alzheimer disease (AD) through the lowering of homocysteine levels. OBJECTIVE: To relate intake of folate and vitamins B6 and B12 to AD risk. DESIGN AND PATIENTS: We followed up 965 persons 65 years or older without dementia at baseline for a mean +/- SD period of 6.1 +/- 3.3 person-years after the administration of a semiquantitative food frequency questionnaire. Total, dietary, and supplement intake of folate and vitamins B6 and B12 and kilocalorie intake were estimated from the questionnaire responses. We related energy-adjusted intake of folate and vitamins B6 and B12 to incident AD using the Cox proportional hazards regression model. MAIN OUTCOME MEASURE: Incident AD. RESULTS: We found 192 cases of incident AD. The highest quartile of total folate intake was related to a lower risk of AD (hazard ratio, 0.5; 95% confidence interval, 0.3-0.9; P=.02 for trend) after adjustment for age, sex, education, ethnic group, the epsilon4 allele of apolipoprotein E, diabetes mellitus, hypertension, current smoking, heart disease, stroke, and vitamin B6 and B12 levels. Vitamin B6 and B12 levels were not related to the risk of AD. CONCLUSIONS: Higher folate intake may decrease the risk of AD independent of other risk factors and levels of vitamins B6 and B12. These results require confirmation with clinical trials.

1 Originating Grant

• 1.

  Mayeux, Richard

  Epidemiology of Dementia In An Urban Community

  1 February 1989 - 30 June 2009

  NATIONAL INSTITUTE ON AGING

  Total Funding: $ 40,531,208

Scientific Context

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