PMID- 23769397 OWN - NLM STAT- MEDLINE DCOM- 20140305 LR - 20151119 IS - 1558-1497 (Electronic) IS - 0197-4580 (Linking) VI - 34 IP - 11 DP - 2013 Nov TI - BDNF Val66Met, Abeta amyloid, and cognitive decline in preclinical Alzheimer's disease. PG - 2457-64 LID - S0197-4580(13)00204-2 [pii] LID - 10.1016/j.neurobiolaging.2013.05.006 [doi] AB - Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism has previously been implicated in Alzheimer's disease (AD)-related cognitive impairment. We aimed to determine the relationship between BDNF Val66Met and beta-amyloid (Abeta) on cognitive decline, hippocampal atrophy, and Abeta accumulation over 36 months in 165 healthy adults enrolled in the Australian Imaging, Biomarkers and Lifestyle study. In healthy adults with high Abeta, Met carriers showed significant and moderate-to-large declines in episodic memory, executive function, and language, and greater hippocampal atrophy over 36 months, compared with Val/Val homozygotes. BDNF Val66Met was not found to be related to rates of change in cognition or hippocampal volume in healthy adults with low Abeta. BDNF Val66Met did not relate to the amount of Abeta or to the rate of Abeta accumulation in either group. High Abeta levels coupled with Met carriage may be useful prognostic markers of accelerated cognitive decline and hippocampal degeneration in individuals in the preclinical stage of AD. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Lim, Yen Ying AU - Lim YY AD - Mental Health Research Institute, The University of Melbourne, Parkville, Victoria, Australia. y.lim@mhri.edu.au FAU - Villemagne, Victor L AU - Villemagne VL FAU - Laws, Simon M AU - Laws SM FAU - Ames, David AU - Ames D FAU - Pietrzak, Robert H AU - Pietrzak RH FAU - Ellis, Kathryn A AU - Ellis KA FAU - Harrington, Karra D AU - Harrington KD FAU - Bourgeat, Pierrick AU - Bourgeat P FAU - Salvado, Olivier AU - Salvado O FAU - Darby, David AU - Darby D FAU - Snyder, Peter J AU - Snyder PJ FAU - Bush, Ashley I AU - Bush AI FAU - Martins, Ralph N AU - Martins RN FAU - Masters, Colin L AU - Masters CL FAU - Rowe, Christopher C AU - Rowe CC FAU - Nathan, Pradeep J AU - Nathan PJ FAU - Maruff, Paul AU - Maruff P CN - Australian Imaging, Biomarkers and Lifestyle (AIBL) Research Group LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130612 PL - United States TA - Neurobiol Aging JT - Neurobiology of aging JID - 8100437 RN - 0 (2-(4'-(methylamino)phenyl)-6-hydroxybenzothiazole) RN - 0 (Amyloid beta-Peptides) RN - 0 (Aniline Compounds) RN - 0 (Apolipoprotein E4) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Thiazoles) RN - AE28F7PNPL (Methionine) RN - HG18B9YRS7 (Valine) SB - IM MH - Aged MH - Alzheimer Disease/diagnosis MH - Amyloid beta-Peptides/*metabolism MH - Aniline Compounds MH - Apolipoprotein E4/genetics MH - Australia MH - Brain-Derived Neurotrophic Factor/*genetics MH - *Cognition Disorders/etiology/genetics/metabolism MH - Female MH - Genotype MH - Hippocampus/metabolism/pathology MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Memory, Episodic MH - Methionine/*genetics MH - Neuropsychological Tests MH - Positron-Emission Tomography MH - Psychiatric Status Rating Scales MH - Thiazoles MH - Valine/*genetics OTO - NOTNLM OT - Abeta accumulation OT - BDNF Val66Met OT - Cognitive decline OT - Healthy older adults OT - Hippocampal atrophy OT - Preclinical Alzheimer's disease OT - beta-Amyloid EDAT- 2013/06/19 06:00 MHDA- 2014/03/07 06:00 CRDT- 2013/06/18 06:00 PHST- 2012/12/10 00:00 [received] PHST- 2013/03/18 00:00 [revised] PHST- 2013/05/06 00:00 [accepted] PHST- 2013/06/18 06:00 [entrez] PHST- 2013/06/19 06:00 [pubmed] PHST- 2014/03/07 06:00 [medline] AID - S0197-4580(13)00204-2 [pii] AID - 10.1016/j.neurobiolaging.2013.05.006 [doi] PST - ppublish SO - Neurobiol Aging. 2013 Nov;34(11):2457-64. doi: 10.1016/j.neurobiolaging.2013.05.006. Epub 2013 Jun 12.