Neurological complications of celiac disease and autoimmune mechanisms: a prospective study.

Humoral immune mechanisms may have a role in the neurological complications of celiac disease (CD). We assessed 71 CD patients for neurologic manifestations and presence of serum antibodies to neural antigens. Sixteen patients (22.5%) were found to have neurological deficits including headache, depression, entrapment syndromes, peripheral neuropathy, and epilepsy. Antibody reactivity to neural antigens was detected in 30/71 (42.2%) patients. There was no clear correlation between anti-neural reactivity and neurologic dysfunction. Follow-up of 62 patients did not reveal change in electrophysiology or antibodies, regardless of diet. However, in 2 patients with neuropathy, symptoms improved or worsened depending on the diet.