PMID- 21190051 OWN - NLM STAT- MEDLINE DCOM- 20110812 LR - 20211020 IS - 1435-1463 (Electronic) IS - 0300-9564 (Linking) VI - 118 IP - 2 DP - 2011 Feb TI - Influence of brain-derived neurotrophic-factor and apolipoprotein E genetic variants on hippocampal volume and memory performance in healthy young adults. PG - 249-57 LID - 10.1007/s00702-010-0539-8 [doi] AB - Unravelling the impact of genetic variants on clinical phenotypes is a challenging task. Apolipoprotein E (ApoE) and brain-derived neurotrophic factor (BDNF) play an important role in cell growth, regeneration, synaptic plasticity, learning and memory processes. The aim of the present study was to examine the impact of BDNF Val66Met- and ApoE-polymorphisms and their interactions on hippocampal morphology and memory functions in healthy young adults. Hippocampal volume and memory performance of 135 healthy individuals, aged 24.6 +/- 3.2 years, were assessed, using magnetic resonance imaging and the Inventory for Memory diagnostics. The performance of BDNF-Met66 carriers was significantly lower in working memory (P = 0.03) compared with non carriers, whereas no further differences were observed either in cognitive performance or in hippocampal volumes between the groups. Age, BDNF Val66 Met polymorphism and the interaction factor BDNF genotype x age were significantly associated with the variation of working memory scores (P = 0.01, 0.01, 0.02 respectively). No statistically significant differences were detected in the volumes of hippocampi and in memory phenotypes between individuals carrying the ApoE E4 allele and those without it. The analysis did not reveal an impact of gene-gene interaction between BDNF and ApoE genes on hippocampal volumes or memory performance. BDNF Val66Met polymorphism seems to influence working memory function and modulate the effects of ageing on working memory in healthy young adults. FAU - Richter-Schmidinger, Tanja AU - Richter-Schmidinger T AD - Department of Psychiatry and Psychotherapy, Friedrich-Alexander Universitat Erlangen-Nurnberg, Erlangen, Germany. FAU - Alexopoulos, Panagiotis AU - Alexopoulos P FAU - Horn, Marco AU - Horn M FAU - Maus, Sebastian AU - Maus S FAU - Reichel, Martin AU - Reichel M FAU - Rhein, Cosima AU - Rhein C FAU - Lewczuk, Piotr AU - Lewczuk P FAU - Sidiropoulos, Christos AU - Sidiropoulos C FAU - Kneib, Thomas AU - Kneib T FAU - Perneczky, Robert AU - Perneczky R FAU - Doerfler, Arnd AU - Doerfler A FAU - Kornhuber, Johannes AU - Kornhuber J LA - eng PT - Journal Article DEP - 20101229 PL - Austria TA - J Neural Transm (Vienna) JT - Journal of neural transmission (Vienna, Austria : 1996) JID - 9702341 RN - 0 (Apolipoproteins E) RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Apolipoproteins E/*genetics MH - Brain-Derived Neurotrophic Factor/*genetics MH - Female MH - Genetic Predisposition to Disease/*genetics MH - Hippocampus/*physiology MH - Humans MH - Male MH - Memory/*physiology MH - Polymerase Chain Reaction MH - Polymorphism, Single Nucleotide MH - Young Adult EDAT- 2010/12/31 06:00 MHDA- 2011/08/13 06:00 CRDT- 2010/12/31 06:00 PHST- 2010/07/20 00:00 [received] PHST- 2010/11/14 00:00 [accepted] PHST- 2010/12/31 06:00 [entrez] PHST- 2010/12/31 06:00 [pubmed] PHST- 2011/08/13 06:00 [medline] AID - 10.1007/s00702-010-0539-8 [doi] PST - ppublish SO - J Neural Transm (Vienna). 2011 Feb;118(2):249-57. doi: 10.1007/s00702-010-0539-8. Epub 2010 Dec 29.