Greater intake of vitamins B6 and B12 spares gray matter in healthy elderly: a voxel-based morphometry study.

Abstract:

:Previous studies have reported that high concentrations of homocysteine and lower concentrations of vitamins B6, B12, and folate increase the risk for cognitive decline and pathology in aging populations. In this cross-sectional study, high resolution magnetic resonance imaging (MRI) scans and a 3-day food diary were collected on 32 community-dwelling adults between the ages of 59 and 79. We examined the relation between vitamins B6, B12, and folate intake on cortical volume using an optimized voxel-based morphometry (VBM) method and global gray and white matter volume after correcting for age, sex, body mass index, calorie intake, and education. All participants met or surpassed the recommended daily intake for these vitamins. In the VBM analysis, we found that adults with greater vitamin B6 intake had greater gray matter volume along the medial wall, anterior cingulate cortex, medial parietal cortex, middle temporal gyrus, and superior frontal gyrus, whereas people with greater B12 intake had greater volume in the left and right superior parietal sulcus. These effects were driven by vitamin supplementation and were negated when only examining vitamin intake from diet. Folate had no effect on brain volume. Furthermore, there was no relationship between vitamins B6, B12, or folate intake on global brain volume measures, indicating that VBM methods are more sensitive for detecting localized differences in gray matter volume than global measures. These results are discussed in relation to a growing literature on vitamin intake on age-related neurocognitive deterioration.

journal_name

Brain Res

journal_title

Brain research

authors

Erickson KI,Suever BL,Prakash RS,Colcombe SJ,McAuley E,Kramer AF

doi

10.1016/j.brainres.2008.01.030

subject

Has Abstract

pub_date

2008-03-14 00:00:00

pages

20-6

eissn

0006-8993

issn

1872-6240

pii

S0006-8993(08)00021-8

journal_volume

1199

pub_type

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