Ibeprofen does have similar effects yes but I can only work with the reseacrh as it presents itself
'the real culprit behind autism, allergies and auto-immune disorders has less chance of being found because of vaccination focus' I kinda disgaree- there isn't a cause for autism, there are many variants of the syndrome and currently we are supposed to refer to it as Autisms (I have covered the dx MA module and achieved top results in group, however aetiology scheduled next eyar and although I have not given up truthfully I akm unlikely to return to complete it, carer's allowance not covering teh fees).
ASD's don't have a single cuase; we already know that some children on the spectrum have mitochondrial dysfunction, we know there are genetic pathways for some children that also seem to include ADHD, Dyspraxia, even arthritis but so far no gene has been positively identified. It seems that there is often a gene (either inherited or mutated) but the triggers vary immensely. There does seem to be a distinct subgroup with associated bowel issues (regardles sof Wakefield, the link still seems to be there) but that's something like 8% of diagnosed people; we know allergies, in particular food intoleraqnces such as casein and gluten intolerances are common in ASD, we know that ASD can be trriggered by severe viral infection (eg herpes), We also know that ASD is a descriptive dx; dsm defines it as a syndrme with shared characteristics- so it does follow that a pwercentage of people will have other disorders including generic brain damage that cause issues mimicking those seen in 'typical' ASD.
Indeed, it is a few eyars ago but I remember doing an essay for Psych at Uni showing how a child suffering damage to the verbala reas of his brain (those indicated as being affected by SPD, a language disorder that is often seen in parallel with ASD) and a close area linked to aggression could be shown as meeting teh criteria of ASD; developing as a child with undetected brain damage, after all, being likley to produce the same sorts of psychological issues required to meet teh criteria.
This is soemthing that may well be reflected in the new DSM-V: there seems to be a likely emphasis on sensory issues (which tends to identify core ASD in my experience) and is rumoured to bring childhood regressive syndrome childhood disintegrative disorder back under the banner of ASD.
There do seem to be problems that arise from people who see ASD as a single dx. For example, whilst ds1 is fairly typical AS, ds3 has asd but is very different from the classic stereotype: diagnosis requires issues with social behaviour but whilst many are withdrawn, ds3 is the opposite and extremly outgoing as he has no boundaries (he does also completely regress into himself at times but these are rarer). That lack of fitting the stereotype meant that teachers etc needed a lot of persuasion before accepting teh dx and backing his move the the SNU where he ahs thrived.
So anyway- when people say there is no proven link theya re totally right: but equally the research ahs not been done either way. The concept behind Wakefield (rather than the research or techniques) actually only suggested a link in a that 8% subgroup and as far as I am aware nothing has been done focussing on that section.
And that's the thing- we canb't say something does or does not cause or rather have an impact on teh development of ASD at the moment. My former course leader (retired now) preicts that within 10 years the research will have prodeuced more results about the subsets, we shall see. But until we have those to break the many different types of ASD down we can't further understand it- for example say a new vaccine for proto-virus Z caused autism in 10% of children fitting a certain description but as yet that subset has not been detected, the ewffect of that vaccine is both hugely significant and likely to not show up in any research.
So- I think by looking for causations at this stage we are following the wrong path. As parents we should be looking at our children, their history, making patterns- Ia m for example certain that ds1 was born with AS: even his maternity notes comment on his independence and there is a message on MN from a chat with Christopher Green where I am told off for over reacting about worrying behaviour that did in fact turn out to be highly significant, that was before ds1 (now 10) was 2! OTOH ds3 seemed to develop typically until just before he turned 3 (he had a late MMR). And ds3 has dyspraxia. My persoanl feling is they share a single genetic predisposition that would probably manifest as dyspraxia but ds1's difficult birth and exposure to casein before his severe intol was dx'd, and ds3's prolonged exposure to casein (a gp confusing lactose and casein free formula when prescribing) along with a head injury and possibly additional environmental insult via either MMR or the calpol used afterwards had a cumulative effect.