Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-3-24
pubmed:abstractText
Eating disorders (ED), such as anorexia nervosa (AN) and bulimia nervosa (BN), are complex psychiatric disorders where different genetic and environmental factors are involved. Several lines of evidence support that brain-derived neurotrophic factor (BDNF) plays an essential role in eating behaviour and that alterations on this neurotrophic system participates in the susceptibility to both AN and BN. Accordingly, intraventricular administration of BDNF in rats determines food starvation and body weight loss, while BDNF or its specific receptor NTRK2 knockout mice develop obesity and hyperphagia. Case-control studies also suggest a BDNF contribution in the aetiology of ED: we have previously reported a strong association between the Met66 variant within the BDNF gene, restricting AN (ANR) and minimum body mass index (minBMI) in a Spanish sample, and a positive association between the Val66Met and -270C/T BDNF SNPs and ED in six different European populations. To replicate these results, avoiding population stratification effects, we recruited 453 ED trios from eight European centres and performed a family-based association study. Both haplotype relative risk (HRR) and haplotype-based haplotype relative risk (HHRR) methods showed a positive association between the Met66 allele and ANR. Consistently, we also observed an effect of the Met66 variant on low minBMI and a preferential transmission of the -270C/Met66 haplotype to the affected ANR offspring. These results support the involvement of BDNF in eating behaviour and further suggest its participation in the genetic susceptibility to ED, mainly ANR and low minBMI.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1018-4813
pubmed:author
pubmed-author:AnderluhMarijaM, pubmed-author:BellodiLauraL, pubmed-author:BoniClaudetteC, pubmed-author:CelliniElenaE, pubmed-author:CollierDavid ADA, pubmed-author:Cristina CavalliniMariaM, pubmed-author:Di BellaDanielaD, pubmed-author:ErzegovesiStefanoS, pubmed-author:EstivillXavierX, pubmed-author:Fernández-ArandaFernandoF, pubmed-author:FoulonChristineC, pubmed-author:GabrovsekMojcaM, pubmed-author:GorwoodPhilipP, pubmed-author:GratacòsMònicaM, pubmed-author:HebebrandJohannesJ, pubmed-author:HinneyAnkeA, pubmed-author:HollidayJoJ, pubmed-author:HuXunX, pubmed-author:KarwautzAndreasA, pubmed-author:KipmanAmélieA, pubmed-author:KomelRadovanR, pubmed-author:NacmiasBenedettaB, pubmed-author:RemschmidtHelmutH, pubmed-author:RibasésMartaM, pubmed-author:RiccaValdoV, pubmed-author:SorbiSandroS, pubmed-author:TomoriMartinaM, pubmed-author:TreasureJanetJ, pubmed-author:WagnerGudrunG
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
428-34
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Association of BDNF with restricting anorexia nervosa and minimum body mass index: a family-based association study of eight European populations.
pubmed:affiliation
Genes and Disease Program, Center for Genomic Regulation, Barcelona Biomedical Research Park, Barcelona, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Multicenter Study