Abstract
Etiopathology of psoriasis is not completely understood. Patients with psoriasis show elevated sensitivity to gluten. The aim of this study was to see the expression of celiac disease (CD)-associated antibodies gliadin IgA, gliadin IgG, and tissue transglutaminase IgA, and their correlation with HLA Cw6 in patients with psoriasis. The study comprised 56 patients with psoriasis and 60 healthy controls (HC). The levels of antibodies were detected by using ELISA technique and HLA Cw6 typing was carried out by microcytotoxicity method. HLA Cw6 was significantly expressed in psoriasis cases when compared with HC (P<0.05). CD-associated antibodies gliadin IgA/IgG and tissue transglutaminase IgA were significantly higher in the serum of patient with psoriasis when compared with HC (P<0.05, <0.05, and 0.01, respectively). Serum anti tissue transglutaminase IgA (anti tTG IgA) was significantly higher in females when compared with males and expressed more in elderly patients. There was a significant positive correlation among the antibodies (anti gliadin IgA with anti gliadin IgG: r=0.67, P<0.05; anti gliadin IgA with anti tTG IgA: r=0.45, P<0.05, anti gliadin IgG with anti tTG IgA: r=0.26, P<0.05, respectively), whereas insignificant with HLA Cw6. Our study concludes that latent CD or CD-associated antibodies were present in patients with psoriasis and also concludes that HLA Cw6 has no association with expression of these antibodies in patients with psoriasis.
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