Abstract
Objective: Asprosin, a novel peptide that has recently discovered as an important regulatory adipokine, is relevant to obesity in animals and adult humans. Little is known about its roles in children. The aim of the current study was to determine the potential role of asprosin and explore its relationship to various obesity-related markers in children with obesity. Methods: A cross-sectional study was conducted among 119 Chinese children, including 79 children with obesity and 40 lean controls. Anthropometric parameters, clinical data, and circulating tumor necrosis factor-α (TNF-α), adiponectin, leptin, and asprosin levels were measured. Results: Serum asprosin concentrations were significantly elevated in children with obesity compared with lean controls. Children with insulin resistance (IR) had higher asprosin levels than non-IR group. Asprosin was positively correlated with waist-to-hip ratio (WHR), diastolic blood pressure, homoeostasis model of IR (HOMA-IR), leptin-to-adiponectin ratio, TNF-α independent of their body mass index, SDs score, and age. In multivariable linear regression analysis, WHR and HOMA-IR were associated with the circulating level of asprosin. Conclusions: Circulating asprosins are increased in children with obesity and associated with IR. It may be proposed as a novel marker to predict advanced disease.
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