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, = 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, = 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, = 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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| http://dx.doi.org/10.3390/children9020204 | DOI Listing |
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