Two serological studies assessed the prevalence of gluten-related antibodies in patients with different forms of neuropathy and showed increased prevalence of anti-gliadin IgG or IgA compared to controls (32% vs 12%), and increased prevalence of elevated anti-TG2 IgA in patients with idiopathic neuropathy (7% vs 1%) and in chronic inflammatory demyelinating polyneuropathy (16% vs 1%) [7]. This evidence concerns the gene CD79A and chronic inflammatory demyelinating polyradiculoneuropathy.