Attention-deficit disorder gene link

摘要

For the first time, evidence has emerged of genetic abnormalities linked to attention-deficit hyperactivity disorder.rnAnita Thapar of Cardiff University, UK, and colleagues screened DNA from 366 children with ADHD and 1047 without for copy-number variants (CNVs) -specific regions of DNA that were either missing or duplicated.rnSixteen per cent of children with ADHD had unusually high numbers of these CNVs - double the 8 per cent in controls.