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The association of anti‐gliadin and anti‐transglutaminase antibodies and chronic plaque psoriasis in Indian patients: Preliminary results of a descriptive cross‐sectional study
Author(s) -
Dhattarwal Niharika,
Mahajan Vikram K.,
Mehta Karaninder S.,
Chauhan Pushpinder S.,
Yadav Rajinder S.,
Sharma Satya Bhushan,
Sharma Anuj,
Sharma Reena,
Rana Ashwani,
Sondhi Megha
Publication year - 2020
Publication title -
australasian journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.67
H-Index - 53
eISSN - 1440-0960
pISSN - 0004-8380
DOI - 10.1111/ajd.13308
Subject(s) - psoriasis , medicine , gliadin , antibody , tissue transglutaminase , gastroenterology , psoriatic arthritis , immunology , arthritis , gluten , pathology , biochemistry , chemistry , enzyme
Background Gluten sensitivity among psoriasis patients and its association with gender, age, disease duration and severity of psoriasis are under studied in Indians. Objective To examine association among serum levels of anti‐tTG and anti‐gliadin antibodies and clinical features including gender, age, duration and severity of psoriasis. Methods Serum levels of anti‐transglutaminase and anti‐gliadin antibodies were measured quantitatively in 80 (M:F 57:23) psoriasis patients aged 15 to 83 years and matched healthy subjects. Results Forty‐five (56.3%) patients were aged ≥41years, duration of disease was >5years in 43(53.8%) patients, and 22 (27.5%) patients had moderate‐to‐severe psoriasis. Two (2.5%) patients had arthritis and elevated serum anti‐gliadin antibody. Significantly more patients than controls had elevated serum anti‐gliadin antibody (67.5% vs. 2.5%) and anti‐transglutaminase antibody levels (62.5% vs. 0%). Two patients, each with mild and moderate‐to‐severe psoriasis, had highly elevated serum anti‐gliadin antibody and symptoms akin to coeliac disease. Except for a longer duration of psoriasis in patients with elevated anti‐gliadin antibodies, there was no statistically significant difference in gender, age, and severity of psoriasis when compared with patients having normal levels. Conclusion Significant elevation of serum anti‐transglutaminase and anti‐gliadin antibodies levels is noted in psoriasis patients reflecting a possible link. However, results need careful interpretation for any significance of gluten sensitivity in pathogenesis of psoriasis/arthritis or as a stand‐alone risk factor for chronicity/severity of psoriasis or whether gluten‐free diet will be ameliorating. Small number of subjects, cross‐sectional study design, lack of pathological/endoscopic diagnosis and follow‐up are study limitations.