sexta-feira, 6 de março de 2015

Study Concludes Autism Can Be Largely Explained By Genetics

March 5, 2015 | by Justine Alford

Although we currently do not know the precise cause of autism, the prevailing idea is that both genetics and the environment play a role. However, the relative contributions of both have been difficult to establish.

Now, having investigated a large number of twins in the U.K., scientists have once again highlighted the role of genetics in autism, but this time their results place less weight on environmental influences than some previous studies. According to the investigation, autism can be largely explained by genetic factors, with 74-98% of autism cases attributable to genes. Precisely which genes are involved is unknown at this stage, although the authors note that it is likely that tens, if not hundreds, could be playing a role.

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