(16-05-13) Body iron is associated with cognitive executive planning function in college women.

Blanton CA, Green MW, Kretsch MJ.
Source
USDA, ARS, Western Human Nutrition Research Center, University of California,
Davis, CA, USA. [email protected]
Abstract
Evidence of the relationship between altered cognitive function and depleted
Fe status is accumulating in women of reproductive age but the degree of Fe
deficiency associated with negative neuropsychological outcomes needs to be
delineated. Data are limited regarding this relationship in university women in
whom optimal cognitive function is critical to academic success. The aim of the
present study was to examine the relationship between body Fe, in the absence
of Fe-deficiency anaemia, and neuropsychological function in young college
women. Healthy, non-anaemic undergraduate women (n 42) provided a blood sample
and completed a standardised cognitive test battery consisting of one manual
(Tower of London (TOL), a measure of central executive function) and five
computerised (Bakan vigilance task, mental rotation, simple reaction time,
immediate word recall and two-finger tapping) tasks. Women's body Fe ranged
from - 4·2 to 8·1 mg/kg. General linear model ANOVA revealed a significant
effect of body Fe on TOL planning time (P= 0·002). Spearman's correlation
coefficients showed a significant inverse relationship between body Fe and TOL
planning time for move categories 4 (r - 0·39, P= 0·01) and 5 (r - 0·47, P=
0·002). Performance on the computerised cognitive tasks was not affected by
body Fe level. These findings suggest that Fe status in the absence of anaemia
is positively associated with central executive function in otherwise healthy
college women.


Source: Br J Nutr. 2013 Mar 14;109(5):906-13. doi: 10.1017/S0007114512002620. Epub 2012
Jun 7.

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