A recent international study, lead by Prof Joseph Buxbaum of Icahn School of Medicine at Mount Sinai New York, has discovered that 33 genes are linked to autism traits arising from ‘15,480 DNA samples’ from children affected by the mental illness and their parents.
‘The researchers assessed 15,480 DNA samples to determine the impact of mutations to the DNA that are passed from parent to child as well as those that spring up spontaneously.
The study expanded the number of genes linked to autism up to 33.
Seven genes were completely new while 11 had not been classed as true risk genes due to lack of data. Fifteen of the genes were already known to be risky.
It also indicated that small, rare genetic mutations in 107 genes can contribute to the risk of autism.
More than 5% of the autistic people in the study had these non-inherited loss-of-function gene mutations.’
However, ‘The National Autistic Society said we were still “a long way” from knowing the cause of autism’.
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