A recent study has apparently claimed that pediatric obesity may alter thyroid function and structure. Giorgio Radetti, et al, “Thyroid Function and Structure Are Affected in Childhood Obesity,” Journal of Clinical Endocrinology & Metabolism, December 2008. Italian researchers performed thyroid ultrasounds on 186 overweight and obese children over three years, as well as measuring their thyroid hormone and antibody levels. The ultrasounds of 73 children reportedly revealed symptoms of Hashimoto’s thyroiditis, an autoimmune
disease in which T-cells attack the thyroid, despite an absence of the antibodies usually indicative of this ailment. “The ultrasound findings are a bit mysterious,” the lead author was quoted as saying. “However, the findings do suggest the existence of a low-grade inflammation state, which has been known to characterize obesity.”

Scientists have long suspected that thyroiditis can lead to obesity, but this recent study suggests that obesity plays a role in the development of thyroid disorders. In addition, the authors found that thyroid function returned to normal after weight loss. They recommended further research to determine the long-term effects of pediatric obesity on thyroid function into early adulthood. See Medical News Today, December 4, 2008.

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