Gene Mutations 'Behind ADHD'

Study provides firmer genetic evidence for the role of the dopamine transporter in ADHD.

Berlin - Scientists in Germany said on Thursday they have found compelling evidence of a genetic link to hyperactivity in children, identifying three mutations prevalent in fidgety youngsters.

A research team led by Professor Johannes Hebebrand of the University of Duisburg-Essen in western Germany studied 329 families in which one child had attention-deficit hyperactivity disorder syndrome.

They found that a great majority - around 70% - had a combination of three mutations in the gene for the so-called dopamine transporter linked to hyperactivity...

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