I myself did a lil test , I gave my lil girl a bath slowly increased water temp to about 102. degrees , upon getting in there the bath was luke warm . she was just in there no moving , no babble , nothing upon increasing temp , she started to babble, move around , etc. by the time I had fully gotten bath to that degree with in a 1/2 period she was full on a new kid almost...
My little one has non-celiac gluten intolerance. Putting her on a GFCFSF diet did not help with the ASD symptoms any, but she went from being off-the-charts small for both height and weight to being normal petite like the rest of the family. I don't think that she would've benefited from the other therapies (biomed, ABA, speech, social skills training, etc.) remotely as much as she has if her body were still reacting to the gluten. Think of it like trying to learn the violin with a horribly painful splinter in your foot. Removing the splinter isn't going to magically help you master the violin, but it will allow you to concentrate better on your music lessons.
I believe the rat study referred in that article was given one human bacterial strain B fragilis (cannot get that in any probiotic though) and it reversed some symptoms of ASD in rat. That is indeed promising but only one rat model. There are dozens of other rat models of ASD as well and replicating in humans is often harder. I believe autism is an immune disorder for large subset and one way to modulate the immune system is changing the microbiome (using bacterial strains or even using worms to modulate it). There are a few studies looking at microbiome in ASD which has been found to be different but a lot more work needs to be done. There are also gut strains being grown in lab that one day will hopefully be available in pill format for a variety of disorders. In the interim, there are couple of anecdotal case studies using fecal transplant to address clostridia issues in ASD so that is another promising route that should be investigated in research as well.
ok so here is the link I was talking about and also the reason I asked this .....
That is called the temp effect and there are couple of studies done on this in ASD context - including one using hot bath at 102 I believe. Some kids respond to it. We see it during high fever. However this effect is likely not related to leaky gut. That is a separate leaky gut hypothesis and there is a test for it as well. In research, leaky gut was found in only a small subset.