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Association between coeliac disease and psoriasis: Italian primary care multicentre study
Rudi De Bastiani1, Maurizio Gabrielli, Liliana Lora
1GIGA-CP (Italian Group for Primary Care Gastroenterology), Milan, Italy.
Background:
Studies assessing the association between coeliac disease (CD) and psoriasis show conflicting results.
Objective:
To assess in the primary care setting the prevalence of CD in patients with psoriasis and the response to a gluten-free diet (GFD) in subjects with psoriasis and CD.
Methods:
We enrolled 218 patients with psoriasis and 264 controls. Coeliac screening was carried out in all subjects (Eurospital, Trieste, Italy). In subjects with a positive serology, the diagnosis of CD was confirmed histologically.
Results:
Nine (4.1%) psoriatic patients had positive anti-tissue transglutaminase antibodies compared to only 1 among controls (0.4%, p < 0.05; OR 2.03, 95% CI 1.42-90.11). The diagnosis of CD was confirmed histologically in all 10 subjects. At 6 months GFD was associated with a great improvement of skin lesions in 7 out of 8 patients with psoriasis.
Conclusion:
Our multicentre primary care study showed an high prevalence of CD in psoriasis and an improvement of skin lesions in CD under GFD.
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