Disease Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE Although the Val66Met polymorphism at the BDNF gene does not seem to play a significant role in children and adolescents with BD or ADHD, BDNF serum levels deserve further attention in future research on neurobiological aspects of BD and ADHD. 27209073 2016
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE We performed both total sample and sex stratified analyses to investigate the effect of Val66Met genotype on the plasma BDNF levels, but only a trend of association was found in females with ADHD (n=84), with a tendency of lower plasma BDNF level in Val allele carriers than Met/Met genotype carriers (P=0.071). 24713358 2014
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE We aimed to determine whether early parenting is associated with externalizing and internalizing symptoms in children with attention-deficit hyperactivity disorder (ADHD) and whether such an association is affected by the brain-derived neurotrophic factor (BDNF) val66met polymorphism. 25425456 2014
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE No association between the p.Val66Met polymorphism and ADHD was found in any of the four populations or in the pooled sample. 19603419 2010
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE The G/A genotype of the Val66Met SNP was associated with both ADHD and ID, and the G allele was significantly associated with ADHD. 20943059 2010
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE No association was found between the Val66Met polymorphism and ADHD in either of the two populations. 17044097 2007
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE We did not find support for an involvement of the Val66 allele of the Val66Met polymorphism of BDNF in the pathogenesis of ADHD in our sample. 17219016 2007
Attention deficit hyperactivity disorder
0.080 GeneticVariation BEFREE The common Val66Met functional polymorphism in the human BDNF gene (rs 6265) was genotyped in a collaborative family-based sample of 341 white UK or Irish ADHD probands and their parents. 15940292 2005