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Indian J Endocrinol Metab. 2016 Jan-Feb;20(1):97-100. doi: 10.4103/2230-8210.172241.

Celiac autoimmunity in autoimmune thyroid disease is highly prevalent with a questionable impact.

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1
Department of Endocrinology, BYL Nair Charitable Hospital and Topiwala National Medical College, Mumbai, Maharashtra, India.

Abstract

INTRODUCTION:

The prevalence of autoimmune thyroid disease (AITD) is 10-12% in the general population worldwide. Among various disorders co-existing with AITD, the concomitance of celiac disease (CD) with AITD results in poor absorption of thyroid medications and results in higher doses of the same. Institution of gluten-free diet (GFD) in this cohort helps reduce medication doses.

AIM:

To screen patients with AITD for the presence of celiac autoimmunity (CA).

MATERIALS AND METHODS:

A total of 280 consecutive patients with AITD attending the thyroid Out-patient Department of a tertiary care hospital were screened for the presence of tissue transglutaminase antibodies (immunoglobulin A tissue transglutaminase). Those with a positive titer (but < 10 times the upper limit of normal) underwent upper gastrointestinal endoscopy and duodenal mucosal biopsy for the diagnosis of CD, followed by institution of GFD in confirmed cases.

RESULTS:

Of a total of 280 (182 females and 98 males) patients with AITD screened, 24 (8.6%) turned out to be positive for CA. Of 24 (8.6%), 15 (8.24%) females and 9 (9.18%) males were positive for CA. There was no statistically significant difference in the thyroxine doses required for normalization of thyroid function and the weight of the patients in CA positive and CA negative patients.

CONCLUSIONS:

The prevalence of CD in patients with AITD is much greater than in the general population. This forms the basis for screening patients with AITD for presence of CD.

KEYWORDS:

Autoimmunity; celiac disease; thyroid disease

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