Key result
Metabolic syndrome in obese children and adolescents is linked to ~20% higher serum Urotensin-II levels.
Why the study?
Urotensin-II plays a role in the pathophysiology of metabolic syndrome, but its levels and potential link to metabolic syndrome had not been studied in obese children and adolescents.
Are serum levels of Urotensin-II elevated in obese children and adolescents with metabolic syndrome compared to those without?
Cross-Sectional (n=52)
Are serum levels of Urotensin-II elevated in obese children and adolescents with metabolic syndrome compared to those without?
Urotensin-II levels are elevated in obese children and adolescents with metabolic syndrome and high blood pressure, suggesting a potential role in early cardiovascular risk.
May signal early cardiovascular risk in obese youth with metabolic syndrome; hypothesis-generating and requires prospective validation before clinical use.
Background: Urotensin-II (U-II) is a short cyclic peptide that is widely recognized as one of the most potent vasoconstrictors. U-II plays a role in the pathophysiology of MS, participating in the development of essential hypertension, insulin resistance, hyperglycemia, and a proinflammatory state. Methods: This study comprised 52 obese children and adolescents with a body mass index (BMI) z score > 2, aged 10 to 18 years. Serum levels of U-II were assessed using an enzyme-linked immunosorbent assay along with other standard biochemical parameters. Results: Elevated serum levels of U-II were recorded in the group of obese subjects with MS when compared with the group of obese subjects without MS (4.99 (8.97–3.16) vs. 4.17 (5.17–2.03) ng/mL, median and IQR, p = 0.026). Furthermore, a subgroup of study subjects with high blood pressure had significantly higher U-II levels in comparison with the normotensive subgroup (4.98 (7.19–3.22) vs. 3.32 (5.06–1.97) ng/mL, p = 0.027), while the subgroup with a positive family history of high blood pressure had significantly higher U-II levels when compared with subjects who had a negative family history of elevated blood pressure (5.06 (6.83–4.45) vs. 3.32 (6.13–2.21) ng/mL, p = 0.039). Conclusions: To the best of the author’s knowledge, this is the first study on the levels of U-II in obese children and adolescents, including a possible link to MS.
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Šimunović et al. (2022) conducted a cross-sectional in Obesity and Metabolic Syndrome (n=52). Metabolic syndrome vs. Obese subjects without metabolic syndrome was evaluated on Serum levels of Urotensin-II (U-II) (p=0.026). Obese children and adolescents with metabolic syndrome had significantly higher serum Urotensin-II levels compared to those without metabolic syndrome (4.99 vs. 4.17 ng/mL, p=0.026).
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