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, 33 (2), 265-270

Novel Associations of Serum Adropin and Lipopolysaccharide-Binding Protein Versus Lipid Profiles in Childhood Obesity

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Novel Associations of Serum Adropin and Lipopolysaccharide-Binding Protein Versus Lipid Profiles in Childhood Obesity

Xin Yuan et al. J Pediatr Endocrinol Metab.

Abstract

Background The relationship between cytokines and lipid metabolism has garnered attention given their potential metabolic interaction. However, the relationship between adropin and lipopolysaccharide-binding protein (LBP) and obesity-related inflammation has not been reported, as well as their relationship with serum lipid profiles. Objective This study analyzed the association of serum adropin, leptin, LBP levels and lipid profiles in obese children ranging from 5 to 14 years old. Methods Plasma lipid measurements included total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-c) and low-density lipoprotein cholesterol (LDL-c) by standard methods, and serum adropin, leptin and LBP levels was measured by enzyme-linked immunosorbent assay (ELISA). Results One hundred and twenty-four children (9.25 ± 1.59 years) with obesity and 42 controls (8.81 ± 1.94 years) were assessed. Compared with the control group, the serum adropin concentrations in the obesity group were significantly lower, whereas the serum leptin and LBP levels were significantly higher. Pearson's correlation analysis showed that serum adropin levels negatively correlated with TG, waist to hip ratio (WHR) and body mass index (BMI), and positively correlated with HDL-c. Serum LBP levels positively correlated with LDL-c and WHR. After adjusting for LBP, the correlation coefficients of adropin with TG, HDL-c and leptin were more robust. Also, after adjusting for serum LBP, the correlation coefficient of leptin with TG was attenuated, yet remained statistically significant, and the correlation coefficient of leptin with HDL-c was enhanced. Conclusions Children with obesity have decreased serum adropin levels and elevated leptin and LBP levels. Each of the three serum cytokines were associated with lipid metabolism, and this association warrants further study.

Keywords: adropin; children; lipid characteristics; lipopolysaccharide-binding protein; obesity.

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