I hope what you write is true, a solution would be nice, but whatever causes it has made my life a lot more difficult for 13 years. Hopefully research like this can prevent the trauma of this disorder from inflicting itself on future generations. Research is good!
I sympathize with you. And I know how difficult it is although I've only been going through it for 18 months.
I have seen improvements in my son from diet (GFCF, sugar free, organic food, no preservatives...) and from other treatments designed to improve methylation and detox heavy metals. I have stool reports showing the metals my son is excreting and you would just be shocked. Are you familiar with Defeat Autism Now! (DAN!)? There was a movement by parents who would not accept the fate given to their children by mainstream doctors. DAN! doctors are doctors that have autistic children or that have an open mind. Autistic children are recovering and some even lose their diagnosis completely.