Project description:Inattention, impulsivity and hyperactivity are the primary behaviors associated with Attention Deficit / Hyperactivity Disorder (ADHD). Previous studies proved that peripheral blood gene expression signature could mirror central nervous system disease. This study determined if gene expression in blood correlated with inattention, hyperactivity/impulsivity rating scales and/or both in subjects with Tourette syndrome (TS).
Project description:<p>The Tourette International Collaborative Genetics (TIC Genetics) Study is an international collaboration of scientists and clinicians specialized in Tourette Disorder (TD) from more than 20 sites across the United States, Europe, and South Korea. The study was established to further our understanding of the genetic architecture of tic disorders by developing a large sample of genotypically and phenotypically well-characterized affected probands and their relatives. We employ state-of-the-art genetic technologies to identify major genetic variants contributing to TD and the most commonly comorbid disorders, such as Obsessive-Compulsive Disorder (OCD) and Attention-Deficit/Hyperactivity Disorder (ADHD). TIC Genetics is a direct result of work of the New Jersey Center for Tourette Syndrome (NJCTS) Sharing Repository (Heiman et. al., 2008; PMID: <a href="https://www.ncbi.nlm.nih.gov/pubmed/19036136" target="_blank">19036136</a>), funded by a grant from NJCTS Center of Excellence. Established in 2011 (Dietrich et. al., 2015; PMID: <a href="https://www.ncbi.nlm.nih.gov/pubmed/24771252" target="_blank">24771252</a>), the TIC Genetic study focuses on both on familial genetic variants with large effects within multiplex affected pedigrees and on de novo mutations ascertained through the analysis of apparently simplex parent-child trios with non-familial tics.</p> <p>In <b>May 2017</b>, we published a whole-exome sequencing study on apparently 311 parent-child trios (Willsey et. al., 2017; PMID: <a href="https://www.ncbi.nlm.nih.gov/pubmed/28472652" target="_blank">28472652</a>). These data, both phenotypes and sequencing data, are available through dbGaP.</p>