subgroups: two biologically different strains of autism - Amaral

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*US researchers' discovery promises answers on autism.

<http://www.theaustralian.com.au/news/health-science/us-researchers-discovery-pr\

omises-answers-on-autism/story-e6frg8y6-1226131763200>*

Researchers have for the first time identified two biologically

different strains of autism in a major breakthrough being compared with

the discovery of different forms of cancer in the 1960s....

One group of children - all boys - had enlarged brains and most had

regressed into autism after 18 months of age; another group appeared to

have immune systems that were not functioning properly....

" As an example, if a child has an immune form of autism, it may be that

what we want to do is manipulate their immune system rather than trying

something else that may be related to synaptic functions in the brain. " ...