Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-1-9
pubmed:abstractText
Low folate status has been associated with cognitive decline. We investigated the association of folate status and the 5,10-methylenetetrahydrofolate reductase (MTHFR) 677C-->T polymorphism with performance on a battery of neuropsychological tests. Furthermore, we investigated whether the association of folate with cognitive performance was mediated by plasma homocysteine or risk of vascular disease. We used cross-sectional data from 818 individuals aged 50-70 years old. Low concentrations of erythrocyte folate but not serum folate were associated with poor performance on complex speed and memory tasks, independent of educational level and conventional risk factors of vascular disease. These associations were not mediated by homocysteine concentrations or carotid intima-media thickness. Subjects with the MTHFR 677TT genotype tended to perform better on cognitive tasks than CC/CT subjects, although this was significant for sensorimotor speed only (differences in Z-scores between MTHFR 677TT homozygotes and CC homozygotes -0.15, 95% CI: -0.30 to 0.00). Low concentrations of erythrocyte folate are associated with decreased cognitive performance, possibly through a homocysteine-independent mechanism such as DNA infidelity and mitochondrial decay.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0197-4580
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
334-43
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Folate and the methylenetetrahydrofolate reductase 677C-->T mutation correlate with cognitive performance.
pubmed:affiliation
Division of Human Nutrition, Wageningen University, 6700 EV Wageningen, The Netherlands. jane.durga@wur.nl
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't