Autism might be linked with mutations in the RNA, rather than in the DNA
Faulty RNA editing linked to autism - brain short science news

While the precise cause of the onset of autism spectrum disorders is still unknown, scientists have found that faulty RNA editing might be involved. RNA is described from DNA, and processed before it will serve as a template for protein synthesis.

Now it appears that RNA mutations (similar to DNA mutations, except that the genes on the DNA are correct) lead to incorrect editing. Scientists found thousands of RNA editing sites in post-mortem brains where autistic patients show less or more editing when compared to controls. Interestingly, there seems to be a functional role in RNA editing for two proteins that had already been linked to autism, as were many of the proteins that are coded by the RNA.

While a causal link between autism and faulty RNA editing could not be demonstrated, the study highlights the importance of RNA editing in brain disorders, a hitherto underexplored field of study.

Read the full story: UCLA
Scientific publication: Nature Neuroscience