Cited by 45Nerve injury and regenerationCognitive Abilities and TestingNeurotransmitter Receptor Influence on Behavior

BDNF polymorphism predicts the rate of decline in skilled task performance and hippocampal volume in healthy individuals

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Sanchez, M Millan, Das, D, Taylor, J L, Noda, A, Yesavage, J A, Salehi, A·2011·Translational Psychiatry

Abstract

Numerous studies have indicated a link between the presence of polymorphism in brain-derived neurotrophic factor (BDNF) and cognitive and affective disorders. However, only a few have studied these effects longitudinally along with structural changes in the brain. This study was carried out to investigate whether valine-to-methionine substitution at position 66 (val66met) of pro-BDNF could be linked to alterations in the rate of decline in skilled task performance and structural changes in hippocampal volume. Participants consisted of 144 healthy Caucasian pilots (aged 40-69 years) who completed a minimum of 3 consecutive annual visits. Standardized flight simulator score (SFSS) was measured as a reliable and quantifiable indicator for skilled task performance. In addition, a subset of these individuals was assessed for hippocampal volume alterations using magnetic resonance imaging. We found that val66met substitution in BDNF correlated longitudinally with the rate of decline in SFSS. Structurally, age-dependent hippocampal volume changes were also significantly altered by this substitution. Our study suggests that val66met polymorphism in BDNF can be linked to the rate of decline in skilled task performance. Furthermore, this polymorphism could be used as a predictor of the effects of age on the structure of the hippocampus in healthy individuals. Such results have implications for understanding possible disabilities in older adults performing skilled tasks who are at a higher risk for cognitive and affective disorders.Translational Psychiatry (2011) 1, e51; doi:10.1038/tp.2011.47; published online 25 October 2011.

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  • In an extensive longitudinal study, the presence of rs6265 robustly predicted the gradual decline of hippocampal volume and subsequent skilled task performance.

    “In an extensive longitudinal study, the presence of rs6265 robustly predicted the gradual decline of hippocampal volume and also subsequent skilled task performance (Sanchez et al., 2011).”

    From Exercise-Mediated Neurogenesis in the Hippocampus via BDNF (2018) · cites this paper as Sanchez et al., 2011

    The Results (Standard flight simulator score; page not provided) report significantly faster decline in skilled-task performance among met carriers. But the longitudinal hippocampal-volume analysis found no significant effect of the polymorphism on the rate of volume decline, and the paper found no significant correlation between hippocampal volume and task performance. The claim overstates the volume finding and implies a sequence the study did not establish. (LLM, conf=0.90)

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Research works printed but not linked: 2

  1. Chao MV Trophic factors: an evolutionary cul-de-sac or door into higher neuronal function J Neurosci Res 2000 59 353 355 10679770
  2. Kay GG CogScreen Aeromedical Edition Professional Manual Psychological Assessment Resources, Inc: Odessa, FL 1995

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Authors
Sanchez, M. M., Das, D., Taylor, J. L., Noda, A., Yesavage, J. A., & Salehi, A.
Affiliations
VA Palo Alto Health Care System (US)
Corresponding author
Salehi, A
Venue
Translational Psychiatry
Published
2011-10-25
Volume
1
Issue
10
Pages
e51-e51
ISSN
2158-3188 (ISSN-L)
OpenAlex
W2155400471
Cited by
45
References
73
Citations by year
2024: 1 · 2023: 5 · 2020: 4 · 2019: 2 · 2018: 7 · 2017: 8 · 2016: 4 · 2015: 3 · 2014: 7 · 2013: 2 · 2012: 2
FWCI
1.46
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • McMaster University
  • War Related Illness and Injury Study Center
  • National Institute on Aging (AG-17824, R01AG021632, P30AG017824, R37 AG12713, R37AG012713, P30 AG17824)
  • National Center for Research Resources (P41RR023953)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
brain-derived neurotrophic factor, BDNF Val66Met polymorphism, hippocampal volume, cognitive decline, aging, pilots, healthy older adults
MeSH terms
Workforce, Adult, Aerospace Medicine, Aged, Cross-Sectional Studies, Female, Hippocampus, Humans, Longitudinal Studies, Male, Middle Aged, Motor Skills, Polymorphism, Genetic, Predictive Value of Tests, Psychomotor Performance, United States, Brain-Derived Neurotrophic Factor, Amino Acid Substitution

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