Disease Score gda Association Type Type Original DB Sentence supporting the association PMID PMID Year
Attention deficit hyperactivity disorder
0.100 Biomarker disease BEFREE The selective α2A adrenoceptor agonist guanfacine reduces hyperactivity and improves cognitive impairment in patients with attention-deficit/hyperactivity disorder (ADHD). 30802458 2019
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE The ADRA2A gene -1291C/G SNP is associated with the efficacy of MPH for the treatment of ADHD in Taiwanese children and adolescents. 29486545 2018
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Thus this study finds evidence that DNA variation in the ADRA2A gene may be causally related to ADHD-like behaviors, in part through its influence on intra-individual variability. 24166412 2014
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE White-matter connectivity and methylphenidate-induced changes in attentional performance according to α2A-adrenergic receptor gene polymorphisms in Korean children with attention-deficit hyperactivity disorder. 24026714 2013
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE The present investigation reports results from a meta-analysis of family-based studies that did not find a significant association between the MspI polymorphism of the ADRA2A gene and ADHD. 23751900 2013
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE No significant association between the alpha-2A-adrenergic receptor gene and treatment response in combined or inattentive subtypes of attention-deficit hyperactivity disorder. 23824524 2013
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE After medication, increasing possession of a G allele at the MspI polymorphism of the ADRA2A gene was associated with increased MPH-related change in response time variability in the flanker task (P = 1.0 × 10).Our study suggested an association between norepinephrine gene variants and response time variability measured at baseline and after MPH treatment in children with ADHD. 23609393 2013
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE We hope that these results will encourage further researchers to sequence the promoter and coding regions of ADRA2A in large panels of ADHD patients from distinct ethnical origins. 24178896 2013
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Children with ADHD having the C/C genotype of ADRA2A MspI showed an 18.5% increase in DBP compared to baseline, but children with the G/G or G/C genotype showed a 0.2% decrease after OROS-MPH treatment. 21628343 2012
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE We aimed to investigate the independent and interaction effects of dopamine transporter gene (DAT1), dopamine D4 receptor gene (DRD4), alpha-2A adrenergic receptor gene (ADRA2A), and norepinephrine transporter gene (NET1), with regard to treatment response to methylphenidate (MPH) in attention-deficit/hyperactivity disorder (ADHD). 23083021 2012
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE We evaluated the effect of the adrenergic α-2A receptor (ADRA2A) and BDNF gene-gene interaction on performance on the CPT in a Korean population with attention-deficit/hyperactivity disorder. 21063237 2011
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE The C-1291G polymorphism (rs1800544) in the promoter region of the alpha(2A)-adrenoceptor gene (ADRA2A) has been associated with attention deficit and hyperactivity in clinical samples. 19922756 2010
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Boys with ADHD who carried the C allele (n = 13) at the ADRA2A MspI polymorphism had reduced perfusion in the bilateral orbitofrontal regions compared with those without the C allele (n = 8) (p < 0.0005, uncorrected for multiple comparisons). 20731965 2010
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Our findings provide evidence of an association between the ADRA2A -1291 C>G genotype and response to MPH treatment in Korean subjects with ADHD. 19150055 2009
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Possible association of the alpha-2A-adrenergic receptor gene with response time variability in attention deficit hyperactivity disorder. 18314873 2008
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Patients One hundred six patients consecutively diagnosed as having ADHD were genotyped for the ADRA2A -1291 C>G polymorphism and were included in the analyses. 17283289 2007
Attention deficit hyperactivity disorder
0.100 Biomarker disease BEFREE Several EF measures showed association with ADRA2A, as well as moderation, but not mediation, of its association with ADHD. 16869226 2006
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE This study aimed to investigate the association between this ADRA2A polymorphism and attention-deficit/hyperactivity disorder-inattentive type (ADHD-I) in a nonreferred sample. 16806103 2006
Attention deficit hyperactivity disorder
0.100 AlteredExpression disease BEFREE Our results provide weak evidence for a possible role of ADRA2A in ADHD symptom expression. 16389583 2006
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE This study supports the hypothesis that an allele of the ADRA2A gene is associated and linked with the ADHD combined subtype and suggests that the DraI polymorphism of ADRA2A is linked to a causative polymorphism. 15520832 2005
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE Our results suggest that the ADRA2A gene might have a small effect on ADHD susceptibility or that this gene might modulate the severity of the disorder. 12815749 2003
Attention deficit hyperactivity disorder
0.100 GeneticVariation disease BEFREE We found no evidence for linkage of the ADRA2A gene with ADHD, using the transmission disequilibrium test in this set of families. 11304829 2001
Attention deficit hyperactivity disorder
0.100 Biomarker disease BEFREE We examined the hypothesis that ADHD + LD was associated with NE dysfunction at a molecular genetic level by testing for associations and additive effects between polymorphisms at three noradrenergic genes the adrenergic alpha2A receptor (ADRA2A), adrenergic alpha2C receptor (ADRA2C), and dopamine beta-hydroxylase (DBH) genes. 10334470 1999