The importance of a healthy diet
The researchers found that the IGF2 gene – which plays a role in fetal development, including certain parts of the brain associated with hyperactivity – was modified in children with behavioural difficulties. Higher levels of IGF2 modification were also associated with higher ADHD symptoms between the ages of seven and 13, but only for children who showed an early onset of behavioural problems.
This kind of DNA modification was previously seen in mothers exposed to famine in the Netherlands during World War Two.
As a result of their findings, the scientists highlight the importance of healthy eating during pregnancy for the future health of children.
Further studies will now investigate the role of certain types of fats on children’s developing brains. Omega-3 fatty acids found in oily fish and some vegetable oils can have a protective effect on brain development.
More common in boys
“We already know that nutritional supplements for children can lead to lower ADHD and conduct problems, so it will be important for future research to examine the role of epigenetic changes in this process,” said Dr Edward Barker from King’s College London.
Attention-deficit/hyperactivity disorder (ADHD) is a biological condition affecting the brain. Approximately 5% of children worldwide suffer from the condition. ADHD is more common in boys and is caused by disruption affecting certain neurotransmitters. Symptoms are usually apparent before the age of 12.
Current treatments include drug-based therapies, cognitive behavioural therapy, family-based therapy and various changes to education and lifestyle.
The study was published in the Journal Of Child Psychology and Psychiatry.
Source: AFP Relaxnews
