<div><p>CHICAGO (Reuters) - Increasing the levels of a message-carrying chemical in the brain may help prevent some of the memory deficits in Down syndrome that hinder learning and make it hard for the brain to develop normally, U.S. researchers said on Wednesday.</p><p>They said mice with a rodent ...

<div><p>Boosting a neurotransmitter called norepinephrine in sufferers of Down Syndrome could help reverse the condition, which is the most common cause of mental retardation in children, a study showed Wednesday.</p><p>"If you intervene early enough, you will be able to help kids with Down Syndrome to collect and ...