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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

BDNF variant linked to anxiety-related behaviors.

Brain-derived neurotrophic factor (BDNF) is the most-abundant neurotrophin in the brain. In mammals, it is synthesized as a precursor called proBDNF, which is proteolytically cleaved to generate mature BDNF. The BDNF gene is located on chromosome 11p13, and a functional single nucleotide polymorphism (SNP) of this gene has been shown to produce a valine (Val)-to-methionine (Met) substitution in the proBDNF protein at codon 66 (Val66Met). Several papers suggest that this SNP is related to decreased hippocampal volume and hippocampus-mediated memory performance in humans. Recently, Chen et al.1 generated a variant BDNF mouse (BDNF(Met/Met)) that reproduces the phenotypic hallmarks in humans with a variant Met allele. In the behavioral analysis, BDNF(Met/Met) mice show increased anxiety-related behaviors. This mini-review examines the impact of Met substitution of proBDNF on anxiety-related behaviors. BioEssays 29: 116-119, 2007. (c) 2007 Wiley Periodicals, Inc.[1]


  1. BDNF variant linked to anxiety-related behaviors. Hashimoto, K. Bioessays (2007) [Pubmed]
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