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Brain Struct Funct. 2009 Oct;213(6):501-9. doi: 10.1007/s00429-009-0203-y. Epub 2009 Feb 10.

Brain volumes and Val66Met polymorphism of the BDNF gene: local or global effects?

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Brain and Body Centre, University of Nottingham, Nottingham, UK.

Erratum in

  • Brain Struct Funct. 2009 Dec;214(1):87.


A common Single-Nucleotide Polymorphism in the Brain-Derived Neurotrophic Factor (BDNF) gene coding the Val66Met substitution in the pro-BDNF protein has been associated with a number of behavioural and neuroanatomical phenotypes; the latter include, for example, regional differences in volumes of the hippocampus and prefrontal grey matter. Here, we show that the observed regional differences may not stem from a localised effect of this gene. Our analysis of regional brain volume in a cohort of 331 adolescents indicates that the Val66Met substitution has a global effect on brain volume, and that the observed local differences are to be expected if brain allometry-the covariance pattern of regional brain volumes-is taken into account.

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