--that in some cases of celiac, and even more of gluten sensitivity, the presenting symptoms may be neurological rather than gastrointestinal. Often, such people have an isolated abnormal level of IgG anti-gliadin antibodies without abnormal levels of anti-transglutaminase antibodies (the latter are more closely associated with the intestinal damage of frank celiac sprue). And, malabsorption of nutrients can lead to neurological symptoms as well.

The researcher who has done the most work in this area is Dr. Hadjivassiliou; much of his work and discussion can be found through links in The Gluten File, which can be accessed through the Useful Websites area at the top of this board.