Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2006-6-27
pubmed:abstractText
Previous studies have suggested that genetic variations in the brain-derived neurotrophic factor (BDNF) gene may be associated with several neuropsychiatric diseases including bipolar disorder. The present study examined a microsatellite polymorphism located approximately 1.0 kb upstream of the translation initiation site of the BDNF gene for novel sequence variations, association with bipolar disorder, and effects on transcriptional activity. Detailed sequencing analysis revealed that this polymorphism is not a simple dinucleotide repeat, but it is highly polymorphic with a complex structure containing three types of dinucleotide repeats, insertion/deletion, and nucleotide substitutions that gives rise to a total of 23 novel allelic variants. We obtained evidence supporting the association between this polymorphic region (designated as BDNF-linked complex polymorphic region (BDNF-LCPR)) and bipolar disorder. One of the major alleles ('A1' allele) was significantly more common in patients than in controls (odds ratio 2.8, 95% confidential interval 1.5-5.3, P=0.001). Furthermore, a luciferase reporter gene assay in rat primary cultured neurons suggests that this risk allele (A1) has a lower-transcription activity, compared to the other alleles. Our results suggest that the BDNF-LCPR is a functional variation that confers susceptibility to bipolar disorder and affects transcriptional activity of the BDNF gene.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1359-4184
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
695-703
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:16568151-Adult, pubmed-meshheading:16568151-Alleles, pubmed-meshheading:16568151-Amino Acid Substitution, pubmed-meshheading:16568151-Animals, pubmed-meshheading:16568151-Base Sequence, pubmed-meshheading:16568151-Bipolar Disorder, pubmed-meshheading:16568151-Brain-Derived Neurotrophic Factor, pubmed-meshheading:16568151-Case-Control Studies, pubmed-meshheading:16568151-Cells, Cultured, pubmed-meshheading:16568151-Dinucleotide Repeats, pubmed-meshheading:16568151-Female, pubmed-meshheading:16568151-Gene Frequency, pubmed-meshheading:16568151-Genes, Reporter, pubmed-meshheading:16568151-Genetic Predisposition to Disease, pubmed-meshheading:16568151-Humans, pubmed-meshheading:16568151-Japan, pubmed-meshheading:16568151-Linkage Disequilibrium, pubmed-meshheading:16568151-Male, pubmed-meshheading:16568151-Middle Aged, pubmed-meshheading:16568151-Molecular Sequence Data, pubmed-meshheading:16568151-Mutation, Missense, pubmed-meshheading:16568151-Neurons, pubmed-meshheading:16568151-Point Mutation, pubmed-meshheading:16568151-Polymorphism, Genetic, pubmed-meshheading:16568151-Rats, pubmed-meshheading:16568151-Recombinant Fusion Proteins, pubmed-meshheading:16568151-Transcription, Genetic
pubmed:year
2006
pubmed:articleTitle
A complex polymorphic region in the brain-derived neurotrophic factor (BDNF) gene confers susceptibility to bipolar disorder and affects transcriptional activity.
pubmed:affiliation
Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't