Korean researchers have discovered a mutant gene which almost triples the probability
that a child suffers from Attention Deficit Hyperactivity Disorder (ADHD). This
genetic link can be helpful for physicians while treating patients with ADHD. It
also paves the way for new medicines to treat ADHD. On several occasions ADHD is
dismissed as a result of poor parenting, so this finding will also help remove
some stigma for parents of children who suffer from ADHD.
Past studies have shown that the condition runs in families. Now it has been
found that a just single 'letter' change in the genetic code of the gene GIT1
(it is linked to a brain protein that helps balance excitability and inhibition)
increases a child's chances of having the condition by 2.7 times. Reduced expression
of GIT1 can lead to ADHD.
The new research has been published in the journal Nature Medicine.