ADHD Genetic testing
To date, the cause of Attention Deficit Hyperactivity Disorder (ADHD) is still unknown. However, it is theorized that both genetic and environmental factors play a crucial role. To find out if indeed genetic factor is one of the determinants in the causation of the disease, a group of scientists from Cardiff University School of Medicine and deCode Genetics in Iceland, among other research centers, implemented a case-control study wherein children were enrolled as participants and they were divided in two groups. One group was composed of 366 children proven to have ADHD, otherwise known as the case subjects, and the other group was composed of 1,047 children without the disease, known as the control subjects—thus giving birth to the term case-control study .
The study specifically looked at whether large deletions and duplications within the DNA, otherwise known as the copy number variants or CNVs, are more common in the case subjects than in the control subjects. If the answer is yes, then it is highly possible that the variants play a role in causing the condition, and thus, in turn, linking genetic factors in the causation. If the link is established, then the remaining job is to definitely and conclusively identify the genes responsible for it . Scientists believe that at least two genes are involved in the causation of ADHD . Read more…Comments Off