Celiac.com 01/30/2018 - Numerous clinicians have reported higher levels of celiac disease markers in their patients with psoriasis. A number of researchers believe that some psoriasis patients suffer from asymptomatic celiac disease, and a number of patients have reported symptom improvements with gluten-free diets.
A team of researchers recently set out to determine the prevalence of antigliadin IgA antibodies in psoriasis vulgaris, and to assess the response of seropositive patients to a gluten-free diet.
The team assessed the prevalence of gliadin IgA antibodies among patients with psoriasis in an urban population, along with noting the clinical effects of a strict gluten-free diet.
The team recruited 97 patients with Psoriasis Area and Severity Index greater than 2.4 from a dermatology clinic. They measured gliadin IgA antibodies in all participants and in 91 control subjects. They found elevated gliadin IgA antibodies in 13 patients, and two controls. All 13 patients were placed on a strict gluten-free diet without any other modifications in their ongoing treatment of psoriasis.
Psoriasis patients who do not have celiac disease or non-celiac gluten sensitivity commonly show high levels of antigliadin IgA antibody.
These results show that antigliadin IgA testing can identify psoriasis patients likely to benefit from a gluten-free diet.