Electrophysiological correlates of the brain-derived neurotrophic factor (BDNF) Val66Met polymorphism.

Abstract:

:The brain-derived neurotrophic factor (BDNF) protein is essential for neuronal development. Val66Met (rs6265) is a functional polymorphism at codon 66 of the BDNF gene that affects neuroplasticity and has been associated with cognition, brain structure and function. The aim of this study was to clarify the relationship between BDNF Val66Met polymorphism and neuronal oscillatory activity, using the electroencephalogram (EEG), in a normative cohort. Neurotypical (N = 92) young adults were genotyped for the BDNF Val66Met polymorphism and had eyes open resting-state EEG recorded for four minutes. Focal increases in right fronto-parietal delta, and decreases in alpha-1 and right hemispheric alpha-2 amplitudes were observed for the Met/Met genotype group compared to Val/Val and Val/Met groups. Stronger frontal topographies were demonstrated for beta-1 and beta-2 in the Val/Met group versus the Val/Val group. Findings highlight BDNF Val66Met genotypic differences in EEG spectral amplitudes, with increased cortical excitability implications for Met allele carriers.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Roy N,Barry RJ,Fernandez FE,Lim CK,Al-Dabbas MA,Karamacoska D,Broyd SJ,Solowij N,Chiu CL,Steiner GZ

doi

10.1038/s41598-020-74780-9

subject

Has Abstract

pub_date

2020-10-21 00:00:00

pages

17915

issue

1

issn

2045-2322

pii

10.1038/s41598-020-74780-9

journal_volume

10

pub_type

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