Monday, October 11, 2010

New Clues to Possible Genetic Basis for ADHD

DNA

MONDAY, Oct. 4 (HealthDay News) -- Children whose mothers are likely to produce too little of the brain chemical serotonin because of gene mutations may be at higher risk of developing attention-deficit hyperactivity disorder (ADHD) later in life, Norwegian researchers report.

Serotonin is involved in many physiological functions and plays an important role during development, especially in the development of nerve cells, the researchers say."

An impaired maternal serotonin production may have profound long-term behavioral effects on [offspring], independent of the children's own genotypes," said lead researcher Dr. Jan Haavik, from the Department of Biomedicine at the University of Bergen.

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