Vitamin D status in children with Hashimoto thyroiditis

Area of Science:

• Pediatric Endocrinology
• Immunology
• Nutritional Science

Background:

• Hashimoto thyroiditis is a common autoimmune disorder affecting children.
• Vitamin D plays a crucial role in immune system regulation.
• The relationship between vitamin D status and Hashimoto thyroiditis in pediatric populations requires further investigation.

Purpose of the Study:

• To assess vitamin D status in children diagnosed with Hashimoto thyroiditis.
• To compare vitamin D levels between children with Hashimoto thyroiditis and healthy controls.
• To explore the correlation between vitamin D levels and thyroid autoimmunity markers.

Main Methods:

• A case-control study involving 78 children with newly diagnosed Hashimoto thyroiditis and 74 healthy controls.
• Measurement of calcium metabolism parameters, thyroid function tests, and 25-hydroxyvitamin D [25(OH)D] levels.
• Statistical analysis to compare groups and assess correlations.

Main Results:

• Vitamin D deficiency was significantly more prevalent in children with Hashimoto thyroiditis (73.1%) compared to controls (17.6%).
• Mean 25(OH)D levels were substantially lower in the Hashimoto group (31.2 nmol/L) versus the control group (57.9 nmol/L).
• A significant inverse correlation was observed between 25(OH)D levels and anti-thyroid peroxidase (anti-TPO) antibodies (r = -0.30, p = 0.007).

Conclusions:

• Children with Hashimoto thyroiditis exhibit higher rates of vitamin D deficiency and lower circulating vitamin D levels.
• The findings suggest a potential role for vitamin D deficiency in the pathogenesis of autoimmune thyroid disease in children.
• Further research is warranted to explore vitamin D supplementation as a therapeutic strategy for pediatric Hashimoto thyroiditis.