Type 1 Diabetes and Thyroid Autoimmunity in Children.

Area of Science:

• Endocrinology
• Pediatric Autoimmunity
• Metabolic Disorders

Background:

• Autoimmune thyroid disease and type 1 diabetes (T1DM) frequently co-occur in pediatric populations.
• Understanding this association is crucial for comprehensive patient management.

Purpose of the Study:

• To investigate the relationship between T1DM and autoimmune thyroiditis in children and adolescents.
• To identify factors influencing this association, including gender, age, and diabetes duration.
• To evaluate the impact on glycemic control (HbA1c).

Main Methods:

• Studied 256 pediatric patients with T1DM.
• Detected anti-TPO antibodies using electrochemiluminescence.
• Measured HbA1c via immunoturbidimetry.
• Conducted clinical examinations, including thyroid palpation and growth assessment.

Main Results:

• 18.3% of T1DM patients tested positive for anti-TPO antibodies.
• Anti-TPO antibodies often became positive years after T1DM diagnosis.
• A significant progression to subclinical hypothyroidism (Hashimoto thyroiditis) was observed in 87.2% of antibody-positive patients.
• Patients with thyroiditis had higher mean HbA1c levels (9.2%) compared to those without (7.9%).

Conclusions:

• Thyroid autoimmunity is prevalent in pediatric T1DM patients.
• Factors like older age at diagnosis, female gender, and longer diabetes duration are associated with thyroid autoimmunity.
• The presence of thyroid autoimmunity can lead to poorer glycemic control in T1DM.