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Genetic variation of brain-derived neurotrophic factor (BDNF) in bipolar disorder: case-control study of over 3000 individuals from the UK

Green, Elaine K., Baybould, Rachel, MacGregor, Stuart, Hyde, Sally, Young, Allan H., O'Donovan, Michael Conlon, Owen, Michael John, Kirov, George, Jones, Lisa, Jones, Ian Richard and Craddock, Nicholas John 2006. Genetic variation of brain-derived neurotrophic factor (BDNF) in bipolar disorder: case-control study of over 3000 individuals from the UK. British Journal of Psychiatry 188 (1) , pp. 21-25. 10.1192/bjp.bp.105.009969

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Abstract

Background Brain-derived neurotrophic factor (BDNF) influences neuronal survival, proliferation and plasticity. Three family-based studies have shown association of the common Valine (Val) allele of the Val66Met polymorphism of the BDNF gene with susceptibility to bipolar disorder. Aims To replicate this finding. Method We genotyped the Val66Met polymorphism in our UK White bipolar case-control sample (n=3062). Results We found no overall evidence of allele or genotype association. However, we found association with disease status in the subset of 131 individuals that had experienced rapid cycling at some time (P=0.004). We found a similar association on re-analysis of our previously reported family-based association sample (P < 0.03, one-tailed test). Conclusions Variation at the Val66Met polymorphism of BDNF does not play a major role in influencing susceptibility to bipolar disorder as a whole, but is associated with susceptibility to the rapid-cycling subset of the disorder.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Neuroscience and Mental Health Research Institute (NMHRI)
Subjects: R Medicine > R Medicine (General)
Publisher: Royal College of Psychiatrists
ISSN: 0007-1250
Last Modified: 17 May 2019 21:26
URI: http://orca.cf.ac.uk/id/eprint/62145

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