PMID- 24660789 OWN - NLM STAT- MEDLINE DCOM- 20150318 LR - 20181202 IS - 1939-1498 (Electronic) IS - 0882-7974 (Linking) VI - 29 IP - 2 DP - 2014 Jun TI - The Val/Met polymorphism of the brain-derived neurotrophic factor (BDNF) gene predicts decline in perceptual speed in older adults. PG - 384-92 LID - 10.1037/a0035201 [doi] AB - The brain-derived neurotrophic factor (BDNF) promotes activity-dependent synaptic plasticity, and contributes to learning and memory. We investigated whether a common Val66Met missense polymorphism (rs6265) of the BDNF gene is associated with individual differences in cognitive decline (marked by perceptual speed) in old age. A total of 376 participants of the Berlin Aging Study, with a mean age of 83.9 years at first occasion, were assessed longitudinally up to 11 times across more than 13 years on the Digit-Letter task. Met carriers (n = 123, 34%) showed steeper linear decline than Val homozygotes (n = 239, 66%); the corresponding contrast explained 2.20% of the variance in change in the entire sample, and 3.41% after excluding individuals at risk for dementia. These effects were not moderated by sex or socioeconomic status. Results are consistent with the hypothesis that normal aging magnifies the effects of common genetic variation on cognitive functioning. CI - PsycINFO Database Record (c) 2014 APA, all rights reserved. FAU - Ghisletta, Paolo AU - Ghisletta P AD - Faculty of Psychology and Educational Sciences, University of Geneva. FAU - Backman, Lars AU - Backman L AD - Aging Research Center, Karolinska Institute. FAU - Bertram, Lars AU - Bertram L AD - Neuropsychiatric Genetics Group, Max Planck Institute for Molecular Genetics. FAU - Brandmaier, Andreas Markus AU - Brandmaier AM AD - Center for Lifespan Psychology, Max Planck Institute for Human Development. FAU - Gerstorf, Denis AU - Gerstorf D AD - Department of Psychology, Humboldt University. FAU - Liu, Tian AU - Liu T AD - Center for Lifespan Psychology, Max Planck Institute for Human Development. FAU - Lindenberger, Ulman AU - Lindenberger U AD - Center for Lifespan Psychology, Max Planck Institute for Human Development. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140324 PL - United States TA - Psychol Aging JT - Psychology and aging JID - 8904079 RN - 0 (Brain-Derived Neurotrophic Factor) RN - AE28F7PNPL (Methionine) RN - HG18B9YRS7 (Valine) SB - IM MH - Aged MH - Aged, 80 and over MH - Aging/*genetics/physiology/*psychology MH - Berlin MH - Brain-Derived Neurotrophic Factor/*genetics MH - Cognition/*physiology MH - Female MH - Homozygote MH - Humans MH - Longitudinal Studies MH - Male MH - Methionine/*genetics MH - Mutation, Missense/genetics MH - Polymorphism, Genetic/*genetics MH - Reaction Time/genetics/physiology MH - Sex Characteristics MH - Social Class MH - Valine/*genetics EDAT- 2014/03/26 06:00 MHDA- 2015/03/19 06:00 CRDT- 2014/03/26 06:00 PHST- 2014/03/26 06:00 [entrez] PHST- 2014/03/26 06:00 [pubmed] PHST- 2015/03/19 06:00 [medline] AID - 2014-10111-001 [pii] AID - 10.1037/a0035201 [doi] PST - ppublish SO - Psychol Aging. 2014 Jun;29(2):384-92. doi: 10.1037/a0035201. Epub 2014 Mar 24.