Atopy as a risk factor for thyroid autoimmunity in children affected with atopic dermatitis

Area of Science:

• Pediatric immunology
• Dermatology
• Endocrinology

Background:

• Growing interest in the link between allergic (atopy) and autoimmune diseases.
• Thyroid autoimmunity is linked to chronic urticaria, but its association with atopic dermatitis (AD) is unexplored.
• This study examines thyroid autoimmunity in pediatric patients with AD.

Purpose of the Study:

• To investigate the co-occurrence of thyroid autoimmunity in children diagnosed with atopic dermatitis.
• To describe the prevalence of antithyroid antibodies in this patient group.

Main Methods:

• A cohort of 147 children with atopic dermatitis (AD) was studied between January 2010 and December 2012.
• A control group of 70 healthy children was included for comparison.
• Patients were classified based on IgE-mediated and non-IgE-mediated AD via skin prick tests.

Main Results:

• Out of 147 children with AD, 54 (36.7%) had IgE-mediated AD and 93 (63.3%) had non-IgE-mediated AD.
• A significant proportion, 14 out of 147 patients (9.52%), exhibited elevated antithyroid antibody levels.
• The study identified a notable prevalence of thyroid autoimmunity within the pediatric atopic dermatitis cohort.

Conclusions:

• The findings suggest a potential connection between atopy, particularly food allergies, and autoimmune conditions.
• Atopy and autoimmunity may represent different manifestations of a shared underlying immune system dysregulation.
• Further research is warranted to elucidate the complex interplay between allergic and autoimmune diseases in children.