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Updated: May 4, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Thyroid functions and trace elements in pediatric patients with exogenous obesity.
Atilla Cayir1, Hakan Doneray, Nezahat Kurt
1Departments of Pediatric Endocrinology, Regional Training and Research Hospital, Erzurum, Turkey, dratillacayir@gmail.com.
In obese children, thyroid hormone (fT4) and trace element levels (zinc, manganese, selenium) are significantly altered. However, changes in fT4 are not linked to trace element level alterations in this pediatric obesity study.
Area of Science:
- Pediatric Endocrinology
- Nutritional Science
- Metabolic Disorders
Background:
- Obesity, a complex disease, impacts energy balance and affects the endocrine system.
- Previous research indicates altered serum thyroid hormones and trace element levels in obese children.
- Thyroid hormone level changes may correlate with alterations in serum trace elements.
Purpose of the Study:
- To investigate the association between serum thyroid hormone levels and trace element concentrations in children with exogenous obesity.
- To compare these levels between obese children and a healthy control group.
Main Methods:
- Study included 85 children with exogenous obesity and 24 healthy controls.
- Measured serum TSH, fT4, fT3, TG, Se, Zn, Cu, and Mn levels.
- Measurements were taken pre-treatment and at 3 and 6 months post-treatment for the obese group.
Main Results:
- Obese children had significantly lower zinc levels compared to controls.
- Manganese and selenium levels were significantly higher in obese children both pre- and post-treatment.
- While fT4 levels increased significantly by the sixth month of treatment, this change was not associated with trace element levels.
Conclusions:
- Exogenous obesity in children is associated with significant alterations in fT4, zinc, copper, manganese, and selenium levels.
- The observed changes in serum fT4 levels in obese children are independent of alterations in trace element concentrations.
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