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Background: Obesity usually complicates hypothyroidism. Adipokines like leptin and adiponectin secreted by adipose tissue modulate insulin resistance (IR), appetite, and obesity. The association between adipokines, IR, and thyroid hormone has not been sufficiently studied in children. We investigated leptin and adiponectin as well as IR and their association with thyroid hormone in both lean and hypothyroid children and adolescents with obesity.
Methods: The study included 30 lean hypothyroid, 30 hypothyroid children and adolescents with obesity, and 30 healthy lean children as the control group. Serum thyroid-stimulating hormone (TSH), free triiodothyronine (fT3), free thyroxine (fT4), fasting blood glucose, fasting insulin, homeostatic model assessment method of insulin resistance (HOMA-IR), leptin, and adiponectin levels were estimated in all participants.
Results: Fasting insulin, HOMA-IR, and leptin levels were significantly elevated in hypothyroid children compared to the control group; more in hypothyroid children with obesity. In contrast, adiponectin levels were significantly lower in the hypothyroid children with obesity compared to the lean hypothyroid children and controls. HOMA-IR was positively correlated to TSH and BMI but inversely correlated with fT3 and fT4 in hypothyroid children. There was no correlation between IR and either leptin or adiponectin levels. Leptin and adiponectin levels correlated well with BMI in hypothyroid children and adolescents with obesity.
Conclusion: Insulin resistance and leptin levels are increased in hypothyroid children and adolescents; more in those with obesity. IR is not related to leptin and adiponectin levels, however, leptin and adiponectin levels correlate well with BMI in hypothyroid children and adolescents with obesity.
Impact: Insulin resistance (IR) and leptin levels increase in hypothyroid children and adolescent; more with obesity. IR is not related to leptin and adiponectin levels, however leptin and adiponectin levels correlated well with BMI in hypothyroid children and adolescents with obesity.
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http://dx.doi.org/10.1186/s12887-022-03318-x | DOI Listing |
Medicine (Baltimore)
September 2025
Department of Pediatrics, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China.
Rationale: Weaver syndrome is a rare congenital overgrowth disorder characterized by a wide spectrum of clinical manifestations that often overlap with other overgrowth syndromes. It is primarily caused by pathogenic variants in the Enhancer of Zeste Homolog 2 (EZH2) gene on chromosome 7q36.1.
View Article and Find Full Text PDFThyroid
September 2025
Department of Molecular Diagnostics, Department of Endocrinology, The Core Laboratory in Medical Center of Clinical Research, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
is a major cause of congenital hypothyroidism (CH) in Chinese patients, but clinical outcomes for those with biallelic mutations remain unclear. This study aimed to describe the clinical manifestations of CH due to defect. One hundred eighty-one patients with primary CH were recruited initially and were subjected to genetic screening.
View Article and Find Full Text PDFBiol Trace Elem Res
September 2025
Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, No. 155 in Nanjing North Street, Heping Distinct, Shenyang, 110001, P. R. China.
The relationship between maternal thyroid function and intellectual development of offspring is controversial. Iodine may be an important confounding factor. This study investigated whether maternal iodine status could affect the efficacy of levothyroxine (LT4) treatment during early pregnancy on the intellectual growth of progeny.
View Article and Find Full Text PDFIntern Med
September 2025
Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Japan.
A hypothyroid mother, due to thyroid stimulation-blocking antibody (TSBAb), gave birth three times. Although her TSBAb levels remained almost 100%, her TSH receptor antibody (TRAb) levels before delivery varied as follows: 315.0, 88.
View Article and Find Full Text PDFJ Pediatr Endocrinol Metab
September 2025
Department of Pediatric Endocrinology, University of Health Science Umraniye Training and Research Hospital, Istanbul, Türkiye.
Objectives: This study retrospectively evaluated long-term clinical and biochemical findings in children and adolescents diagnosed with Hashimoto thyroiditis (HT).
Methods: A total of 233 patients aged 2-18 years, diagnosed with HT and followed for at least three years, were included. Patients were classified into five subgroups based on thyroid stimulating hormone (TSH) and free thyroxine (fT4) levels at diagnosis.