Hyperactivity disorder is genetic

October 2010

One of the most controversial issues generated: teachers, psychiatrists, psychologists and doctors have been unable so far to agree on an opinion on what causes the disorder called Attention Deficit Hyperactivity Disorder (ADHD). But a study recently presented a group of British scientists may be able to shed some light. The report concludes that this type of hyperactivity in children has a genetic origin.

"He had long suspected that genes have something to do, given the inheritance of the disease, but today we have confirmed, " said Anita Tharp, coordinator of the study.

ADHD is a disorder that affects 5 percent of children worldwide and is manifested in hyperactivity, conduct problems and inattention.

This new research, which reinforces previous studies that had examined this possibility was conducted by a team of Neuropsychiatry Centre, Genetics and Genomics at the University of Cardiff in Wales. There, scientists argue that ADHD is a brain development problem and that this can be explained genetically.

Introducing the study, Tharpa added: "We hope that this discovery will help, first, to reduce the stigma that children now suffering with this disease. Often people think that these kids are rude by their parents education and having a behavior problem, but now we can safely say that no, it is a genetic disease and that the brains of these children have developed differently."

Research was published in the prestigious scientific journal The Lancet. There, scientists say children with this disorder who were tested had no small DNA fragments, or conversely, were duplicates. Tharpa cleared that these results will not be used for better diagnosis of the disorder but will be a starting point to investigate its biological basis.

The authors of this study analyzed for eight years between 2001 and 2009 - the DNA of 366 children with disorders and other 1,047 who did not suffered.

Norma Echevarria, a psychiatrist at the ADHD Foundation, said, "had already been investigated in this regard. This study confirms the idea that you believe these kids who misbehave because they want, but actually they behave in this way because they have no self control. And the self control do not generated because something is not right in neurotransmitters. Thus, these studies serve to reinforce the idea that neither the teacher is bad, neither parents nor the kids are bad, ie other circuits are assembled to address the issue."

The study attempts to explain much of the behavior of children. But also of those that turned into adults, continue to suffer the consequences.

Source: Clarín.com