To add to Sara's less than enthusiastic review, (

), there are a couple of points in the first article that's referenced above, that caught my attention. First off, the source of this observation is apparently a psychiatrist, (or, at least, an MD with psychiatric interests). To anyone who keeps up with developments in the field of medicine, it's painfully obvious that psychiatry is a branch of medicine that is dedicated to "creating" "disorders" based on brain-related symptoms, and then attempting to treat those disorders with drugs that have endless side effects, but never effectively "cure" anything - the drugs simply treat the symptoms by creating additional symptoms, so that other drugs can be prescribed for those symptoms, etc., etc.
I realize that there are zillions of patients out there who will attest that the drugs that they are taking are essential to their well-being, but in carefully controlled random, double-blind studies, placebos almost always prove to be basically just as effective, and in some cases even more effective, at controlling the symptoms, than the drug being tested. Psychiatry is a dream come true for Big Pharma, because it allows the drug companies to develop a drug, (at random), and then create a disorder that it can be used to treat, regardless of whether the drug has any proven efficacy or not. Please don't shoot the messenger - I'm just repeating what research has proven, over and over again, over the years.
Psychiatry is an easy target, because of their adopted practices.
(Pay me a ridiculous amount of money to sit and listen to you spill your guts, describing your life all the way back to the day you were born, and after 8 or 10 years of this weekly "therapy", we'll reappraise your situation, to see if you're making any progress. Now and then, I'll prescribe some brain-altering drugs, just to break the monotony, and if they don't cause you to commit suicide, we'll consider the treatment to be a success.)
I'm not saying that mental issues are not real, and I'm not saying that they don't need to be addressed - they
are real, and in many cases they are serious enough that they definitely should be addressed. I'm just saying that psychiatrists really don't have the foggiest idea how to go about it. I'm saying that the field of psychiatry is so murky, and so undisciplined, that most psychiatrists are constantly seeking any straw that they can grasp, to shape into a new "disorder", that they can write about, and subsequently "treat". Most psychiatrists choose the profession because of their own psychoses - that's a fact. OK, I realize that I have just alienated myself with an entire branch of medical science, but bear in mind that I'm not the only one who feels this way.
In view of the following quote, I have a suspicion that the researchers have a problem separating the functions of the enteric nervous system, and the central nervous system. In fact, I wonder if they even realize that the enteric nervous system exists, separate and distinct, from the CNS.
In chronic pain syndromes, nerves constantly send increased pain signals to the brain. But in IBS, the brain itself seems to be amplifying pain signals it receives from the bowel.
I believe it's safe to say that signals originating in the enteric nervous system are not handled in the brain, in the same way that ordinary pain signals are handled, since the relationship is unique.
The main thing I would like to point out, though, is that you find what you are searching for. Digestive system issues affect the entire body, in various ways. If you search for effects in the brain, you are going to find markers in the brain, because the enteric nervous system connects with the CNS in the brain. So why wouldn't anyone expect to find some sort of connection? The question is, "is any particular connection that is found, actually relevant, or is it just a moot point?".
Bearing in mind that it is a proven fact that the vast majority of research conclusions published these days are incorrect, I think we're safe to assume that this report is probably more smoke and mirrors, than anything else.
Regarding the second article referenced: That's old news - they keep getting additional mileage out of it, though. As far as increased mortality due to celiac disease or celiac genetics is concerned - research results are conflicting. Some research shows that asymptomatic celiacs have the same mortality risk as anyone in the general population, other results show varying rates of increased risk. To the contrary, some authorities claim that properly treated celiacs have a longer life expectancy than someone in the general population. Take your pick. Again, since statistically, it's a fact that most research conclusions are incorrect, I wouldn't get too excited about it. A good, (or bad?), researcher can prove virtually anything that they set out to prove, and typically, their peers won't dispute their findings, (unless they happen to have a personal bias/agenda/vendetta).
Tex