Effect of low levels of serum vitamin B12 and folic acid on cognitive performance in old age: a population-based study |
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| Authors: | Jelicic M Jonker C Deeg D J |
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| Affiliation: | a Department of Psychiatry and Neuropsychology, University of Maastricht, The Netherlands.b Department of Psychiatry, Vrije Universiteit Amsterdam, The Netherlands. |
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| Abstract: | We studied the effect of low levels of vitamin B12 and folic acid, alone or combined, on cognitive performance in a population-based sample of 698 older adults (mean age = 68.7 years). No evidence was found for a vitamin-related memory deficit, but research participants with low levels of vitamin B12 exhibited reduced information processing speed relative to participants with normal vitamin B12 levels. |
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