Human Gene Variant Produces Attention Deficit Disorder-Like Problems in Mice
Published:08 Apr.2022    Source:Florida Atlantic University

Mutant mice are providing scientists with a new neurobiological framework to understand the brain changes observed in distractible humans who carry a common gene variant whose frequency has been associated with Attention Deficit Hyperactivity Disorder (ADHD). The scientists demonstrate that mice that express the variant adopt an inattentive phenotype similar to that seen in humans.

The study, led by researchers from the University of Michigan in collaboration with Florida Atlantic University, Temple University, and the National Institute on Deafness and Other Communication Disorders, National Institutes of Health, used genetically engineered mice to examine the neural and behavioral effects of a choline transporter (CHT) variant. Prior work by the team has shown that the variant associated with heightened distractibility in humans, though whether the variant was itself causal for inattention was unclear.