Open AccessHomocysteine, vitamin B 12 , folate and cognitive functions: a systematic and critical review of the literature
Author(s) -
Vogel T.,
DaliYoucef N.,
Kaltenbach G.,
Andrès E.
Publication year - 2009
Publication title -
international journal of clinical practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 98
eISSN - 1742-1241
pISSN - 1368-5031
DOI - 10.1111/j.1742-1241.2009.02026.x
Subject(s) - homocysteine , medicine , dementia , cognitive decline , cognition , b vitamins , epidemiology , vitamin , psychiatry , disease
Summary Elevated serum homocysteine, decreased folate and low vitamin B 12 serum levels are associated with poor cognitive function, cognitive decline and dementia. Despite evidence of an epidemiological association, randomised controlled trials did not provide any clear evidence so far that supplementation with vitamin B 12 and/or folate improves dementia or slows cognitive decline, even though it might normalise homocysteine levels. In this report, we review the current knowledge on the relationship between homocysteine, folate and vitamin B 12 levels and the way their disruption influences cognitive function in adults.