Georg C Ziegler, Christoph Röser, Tobias Renner, Tim Hahn, Ann-Christine Ehlis, Heike Weber, Astrid Dempfle, Susanne Walitza, Christian Jacob, Marcel Romanos, Andreas J Fallgatter, Andreas Reif, Klaus-Peter Lesch
KCNJ6, encoding a potassium channel subunit, regulates the excitability of dopaminergic neurons and is expressed in attention-deficit/hyperactivity disorder (ADHD)-relevant brain regions. As a potential ADHD risk gene, KCNJ6, therefore, may contribute to the endophenotypic variation of the disorder. The impact of two SNPs, rs7275707 and rs6517442, both located in the transcriptional control region of KCNJ6, on reporter gene expression was explored in cultured cells. The KCNJ6 variants were then tested for association with ADHD and personality traits in a family-based sample (165 affected children) and an adult case-control sample (450 patients, 426 controls)...
July 2020: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics